State of diabetes, hypertension, and comorbidity in Kuwait: showcasing the trends as seen in native versus expatriate populations

ONECUT1 variants beyond type 1 and type 2 diabetes: exploring clinical diversity and epigenetic associations in Arab cohorts

ONECUT1 gene, encoding hepatocyte nuclear factor 6, is involved in pancreas and liver development. ONECUT1 mutations impair the function of pancreatic β-cells and control a transcriptional/epigenetic machinery regulating endocrine development. Homozygous nonsense and missense mutations at ONECUT1_p.E231 and a homozygous frameshift mutation at ONECUT1_p.M289 were reported in neonatal diabetes individuals of French, Turkish, and Indian ethnicity, respectively. Additionally, heterozygous variants were observed in Northern European T2D patients, and Italian patients with neonatal diabetes and early-/late-onset T2D. Examining diverse populations, such as Arabs known for consanguinity, can generalize the ONECUT1 involvement in diabetes. Upon screening the cohorts of Kuwaiti T1D and MODY families, and of Kuwaiti and Qatari T2D individuals, we observed two homozygous variants-the deleterious missense rs202151356_p.H33Q in one MODY, one T1D, and two T2D individuals, and the synonymous rs61735385_p.P94P in two T2D individuals. Heterozygous variants were also observed. Examination of GTEx, NephQTL, mQTLdb and HaploReg highlighted the rs61735385_p.P94P variant as eQTL influencing the tissue-specific expression of ONECUT1, as mQTL influencing methylation at CpG sites in and around ONECUT1 with the nearest site at 677-bases 3' to rs61735385_p.P94P; as overlapping predicted binding sites for NF-kappaB and EBF on ONECUT1. DNA methylation profiles of peripheral blood from 19 MODY-X patients versus eight healthy individuals revealed significant hypomethylation at two CpG sites-one located 617-bases 3' to the p.P94P variant and 8,102 bases away from transcription start; and the other located 14,999 bases away from transcription start. Our study generalizes the association of ONECUT1 with clinical diversity in diabetes.

A case-control study to evaluate hematological indices in blood of diabetic and non-diabetic individuals in Ibb City, Yemen

Diabetes mellitus (DM) is a chronic, metabolic illness characterized by an elevation of blood sugar levels. Patients with diabetes show changes in hematological indices. The study aimed to determine hematological indices, ESR, CRP, blood pressure (BP), and weight and their relationship with a fasting blood sugar (FBS) level and different variables in diabetic mellitus patients (DM) compared with healthy control (HC). A total of 202 participants (102 DM group and 100 HC group) were selected randomly. Data were collected using a questionnaire. Blood samples were collected from different places and investigated in Zain Medical Laboratories in Ibb City, Yemen (September 2022 to May 2023). GraphPad Prim was used to analyze the results. P-value ≤ 0.05 was considered statistically significant. The mean and standard deviation of age, weight, gender, residence, marital status, education levels, economic status, regular exercise, following a strict diet, and family history of diabetes revealed significant differences between DM and HC groups (P < 0.0001, P = 0001, P = 0.0027, P = 0.0002, P < 0.0001, P < 0.0001, P = 0.0002, P = 0.0011, P < 0.0001 and P = 0.0001, respectively). FBS results, systolic and diastolic BP, MCV, WBCs, monocytes, eosinophils, and platelets displayed significant differences between both groups (P < 0.0001, P < 0.0001 and P = 0.0404, P = 0.0191, P < 0.0001, P = 0.0253, P < 0.0001, and P = 0.0229, respectively). ESR exhibited statistical significance (P < 0.0001), while CRP displayed no significance. A Pearson's correlation showed that weight, Hb, RBCs, PCV, and WBCs were statistically negatively correlated with FBS whereas other hematological indices showed no correlation with FBS. In conclusion, DM patients had relatively higher levels of MCV, WBCs, eosinophils, platelets and ESR than the control group.

Co-occurrence of hypertension and type 2 diabetes: prevalence and associated factors among Haramaya University employees in Eastern Ethiopia

Background

Both hypertension (HTN) and diabetes are public health concerns in low- and middle-income countries, particularly in sub-Saharan African countries. The co-occurrence of HTN and diabetes is associated with an increased risk of mortality, morbidity, and reduced productivity in the working force. In Ethiopia, there is limited evidence on the co-occurrence of HTN and type 2 diabetes (T2DM). Therefore, this study was conducted to assess the co-occurrence of HTN and T2DM and their associated factors among Haramaya University employees in Eastern Ethiopia.

Methods

A cross-sectional survey was conducted among 1,200 employees at Haramaya University using a simple random sampling technique from December 2018 to February 2019. Demographic and behavioral factors were collected on a semi-structured questionnaire, followed by measurement of anthropometry and blood pressure. Blood glucose and lipid profile measurements were performed by collecting 6 ml of venous blood samples after 8 h of overnight fasting. Data were entered into EpiData 3.1 version and analyzed using Stata 16 software. Bivariable and multivariable logistic regressions were applied to observe the association between independent variables with co-occurrence of HPN and T2DM using odds ratio, 95% confidence interval (CI), and p-values of ≤ 0.05 were considered statistically significant.

Results

The prevalence of HTN and T2DM was 27.3 and 7.4%, respectively. The co-occurrence of HTN and T2DM was 3.8%. The study found that being older (AOR = 3.97; 95 % CI: 1.80-8.74), khat chewing (AOR = 2.76; 95 % CI: 1.23-6.18), body mass index ≥ 25 kg/m² (AOR = 5.11; 95 % CI: 2.06-12.66), and sedentary behavior ≥8 h per day (AOR = 6.44; 95 % CI: 2.89-14.34) were statistically associated with co-occurrence of HTN and T2DM. On the other hand, consuming fruits and vegetables (AOR = 0.10; 95 % CI: 0.04-0.22) and a higher level of education (AOR = 0.39; 95% CI: 0.17-0.89) were negatively statistically associated with the co-occurrence of HTN and T2DM.

Conclusion

The co-occurrence of HTN and T2DM was prevalent among the study participants. This may create a substantial load on the healthcare system as an end result of increased demand for healthcare services. Therefore, rigorous efforts are needed to develop strategies for screening employees to tackle the alarming increase in HTN and T2DM in university employees.

Risk factors associated with xerostomia and reduced salivary flow in hypertensive patients

OBJECTIVE

The aim of this study was to evaluate the risk factors associated with xerostomia and hyposalivation in a group of hypertensive patients.

SUBJECTS AND METHODS

A cross-sectional study was conducted. Hypertensive patients belonged to two healthcare centers were included. Xerostomia was assessed by asking a question and using the Xerostomia Inventory. Unstimulated salivary flow was collected. Different epidemiological variables were analyzed such as age, sex, habits, diseases, drugs, and blood pressure.

RESULTS

221 individuals were included. Xerostomia was reported in 51.13% of patients. Patients with xerostomia suffered more from osteoarthritis and diaphragmatic hernia. These patients took more anticoagulants (acenocoumarol), antiarrhythmics (amiodarone), analgesics (paracetamol) and epilepsy drugs (pregabalin) and less platelet aggregation inhibitors and angiotensin II receptor blockers (losartan). Unstimulated flow was reduced in 37.56% of patients. Patients suffering hyposalivation presented more diseases such as anxiety, infectious or parasitic diseases, hepatitis C, diaphragmatic hernia, and osteoarthritis. These patients took more repaglinide, thiazides, anti-inflammatories, anti-rheumatics, glucosamine, diazepam, and selective beta-2-adrenoreceptor agonists and less combinations of candesartan and diuretics.

CONCLUSIONS

Xerostomia and hyposalivation are frequent in hypertensive patients. It is advisable to take into consideration the comorbidities and the drugs they receive, since they can increase the risk of these salivary disorders.

HbA1c, blood pressure and cholesterol control in adults with diabetes: A report card for Kuwait

Aim

To assess the level of glycemic, blood pressure, and cholesterol control (the ‘ABCs’) nationally amongst adults with diabetes living in Kuwait.

Materials and Methods

Using data from two national cross‐sectional surveys, the levels of risk factor control were assessed in 1,801 adults with diabetes, aged 18–82 years. Glycemic control was defined as HbA1c < 7%, blood pressure control as systolic and diastolic blood pressures of <140/90 mmHg, and non‐HDL cholesterol control as <3.4 mmol/L.

Results

The percentage of adults with diabetes achieving control was 39.2% (95% CI, 37.0–41.5) for glycemia, 58.4% (95% CI, 56.0–60.7) for blood pressure, and 28.3% (95% CI, 26.3–30.4) for non‐HDL cholesterol. The percentage of adults who were non‐smokers was 77.6% (95%, CI 75.6–79.4). The percentage of adults with diabetes achieving control on all three risk factors was 7.4% (95% CI, 6.3–8.8), and only 5.8% (95% CI, 4.8–7.0) achieved ABC control and were nonsmokers. ABC control was 30% higher in women compared with men. Non‐Kuwaitis were almost twice as likely to have uncontrolled ABC factors compared with Kuwaitis.

Conclusions

Only 1 in 13 people with diabetes in Kuwait achieved good control of glycemia, blood pressure, and cholesterol. Only 2 in 5 achieved glycemic control, 6 in 10 blood pressure control, and 2 in 7 cholesterol control. A national diabetes quality improvement program is urgently needed to improve the quality of care and to prevent long‐term complications.

Prevalence and associated risk factors of hypertension and pre-hypertension among the adult population: findings from the Dubai Household Survey, 2019

BACKGROUND

Minimal data is available on the prevalence and correlates of hypertension and prehypertension in Dubai. The study aims to measure the prevalence of hypertension and pre-hypertension and the associated socio-demographic characteristics, behavioral risk factors and comorbidities among the adult population of Dubai.

METHODS

This study used data from the Dubai Household Health Survey, 2019. A cross-sectional population survey based on a complex stratified cluster random design. The total eligible sample included 2530 adults (18+). Sociodemographic and behavioral factors were considered as independent covariates. The main study outcome variables, pre-hypertension and hypertension, were ordinal, with normotension as the reference group.

RESULTS

The overall prevalence of hypertension in adults was 32.5% (38.37% in males and 16.66% in females). Prehypertension was prevalent in 29.8% of adults in Dubai (28.85% in males and 32.31% in females). The multivariate logistic regression analysis revealed that age groups, gender, occupation, and high Body Mass Index were significantly associated with a higher risk of hypertension at the level of P < 0.05. No clear trend toward a higher correlation of hypertension was noted with the increase in age, except after the age of 50 years. Males were five- times more likely to be hypertensive than females. Participants enrolled in skilled and service works had a five times higher risk of hypertension, compared with the reference group (professionals). Obese subjects had a 5.47-times greater correlation of hypertension compared with normal-weight subjects. Physically active individuals were less likely to develop hypertension. For the correlates with prehypertension in the present analysis, skilled and service workers and those working in elementary jobs had a higher risk of prehypertension, compared with the reference group (professionals) Individuals with a status of overweight were associated with a higher prevalence of prehypertension compared with people of normal weight.

CONCLUSIONS

This study showed a high prevalence of prehypertension and hypertension among adults in Dubai. Some socio-demographic and behavioral risk factors were correlated with prehypertension and hypertension among the studied population. Interventions aiming at increasing public awareness about such risk factors are essential.

Risk of mortality among inpatients with COVID-19 and type 2 diabetes: National data from Kuwait

Introduction

To investigate type 2 diabetes as a risk factor for COVID‐19 death following hospital admission in Kuwait.

Methods

A retrospective cohort study using data from a central hospital that cared for all hospitalized COVID‐19 patients in Kuwait. We investigated the association between type 2 diabetes, with COVID‐19 mortality using multiply imputed logistic regression and calculated the population attributable fraction.

Results

A total of 5333 patients were admitted with COVID‐19, of whom 244 died (4.6%). Diabetes prevalence was 24.8%, but 53.7% of those who died had diabetes. After adjusting for age, sex, ethnicity and other comorbidities, diabetes was associated with death (OR 1.70 [95% CI 1.23, 2.34]) and admission to the intensive care unit more than 3 days after initial admission (OR 1.78 [95% CI 1.17, 2.70]). Assuming causality, the population attributable fraction for type 2 diabetes in COVID‐19 death was 19.6% (95% CI 10.8, 35.6).

Conclusion

Type 2 diabetes is a strong risk factor for COVID‐19 death in the Middle East. Given the high prevalence of type 2 diabetes in the Middle East, as well as many Western countries, the public health implications are considerable.

Prevalence of diabetes and hypertension and their interaction effects on cardio-cerebrovascular diseases: a cross-sectional study

BACKGROUND

Hypertension and diabetes mellitus are two of the major risk factors for cardio-cerebrovascular diseases (CVDs). Although prior studies have confirmed that the coexistence of the two can markedly increase the risk of CVDs, few studies investigated whether potential interaction effects of hypertension and diabetes can result in greater cardio-cerebrovascular damage. We aimed to investigate the prevalence of hypertension and diabetes and whether they both affect synergistically the risk of CVDs.

METHODS

A cross-sectional study was conducted by using a multistage stratified random sampling among communities in Changsha City, Hunan Province. Study participants aged > = 18 years were asked to complete questionnaires and physical examinations. Multivariate logistic regression models were performed to evaluate the association of diabetes, hypertension, and their multiplicative interaction with CVDs with adjustment for potential confounders. We also evaluated additive interaction with the relative excess risk ratio (RERI), attribution percentage (AP), synergy index (SI).

RESULTS

A total of 14,422 participants aged 18-98 years were collected (men = 5827, 40.7%). The prevalence was 22.7% for hypertension, 7.0% for diabetes, and 3.8% for diabetes with hypertension complication, respectively. Older age, women, higher educational level, unmarried status, obesity (central obesity) were associated with increased risk of hypertension and diabetes. We did not find significant multiplicative interaction of diabetes and hypertension on CVDs, but observed a synergistic additive interaction on coronary heart disease (SI, 1.43; 95% CI, 1.03-1.97; RERI, 1.94; 95% CI, 0.05-3.83; AP, 0.26; 95% CI, 0.06-0.46).

CONCLUSIONS

Diabetes and hypertension were found to be associated with a significantly increased risk of CVDs and a significant synergistic additive interaction of diabetes and hypertension on coronary heart disease was observed. Participants who were old, women, highly educated, unmarried, obese (central obese) had increased risk of diabetes and hypertension.

Prevalence of Cardiovascular and Renal Co-morbidities in Patients with Type 2 Diabetes in the Gulf, a Cross-sectional Observational Study

INTRODUCTION

Understanding comorbid conditions with type 2 diabetes mellitus (T2DM) is critical for clinical decision-making regarding the choice of pharmacotherapy. This study aimed at describing the prevalence and co-prevalence of comorbidities, including chronic kidney disease (CKD) and cardiovascular disease (CVD) (coronary artery disease (CAD), cerebrovascular disease, peripheral arterial disease (PAD) and congestive heart failure (CHF)) among patients with T2DM.

METHODS

A cross-sectional multi-center observational study on 300 patients with T2DM. Data were collected from patients' records during the enrollment visit.

RESULTS

Overall, 38%, 10% and 2% of the patients had one, two and three comorbidities, respectively, with the number of comorbidities significantly increasing with age. The most prevalent comorbidities were CVD (17.3%), CAD (15%) and CKD (44.3%), mostly stages 2 and 3. However, the prevalence of  CHF (0.7%),  PAD (2.3%) and cerebrovascular diseases (1.3%) was low. The highest percentage of anti-hyperglycemic agents used was metformin (81%), dipeptidyl peptidase-4 inhibitors (46%), sodium-glucose co-transporter 2 inhibitors (37%), insulin (36%) and sulfonylurea (34%). The choice of the anti-hyperglycemic class did not change across age groups and gender.

CONCLUSION

Half of the patients had T2DM only. The most prevalent comorbidity found was CKD, mainly stage 2. The comorbidity burden tended to increase significantly in older age groups.

Genome-wide landscape establishes novel association signals for metabolic traits in the Arab population

While the Arabian population has a high prevalence of metabolic disorders, it has not been included in global studies that identify genetic risk loci for metabolic traits. Determining the transferability of such largely Euro-centric established risk loci is essential to transfer the research tools/resources, and drug targets generated by global studies to a broad range of ethnic populations. Further, consideration of populations such as Arabs, that are characterized by consanguinity and a high level of inbreeding, can lead to identification of novel risk loci. We imputed published GWAS data from two Kuwaiti Arab cohorts (n = 1434 and 1298) to the 1000 Genomes Project haplotypes and performed meta-analysis for associations with 13 metabolic traits. We compared the observed association signals with those established for metabolic traits. Our study highlighted 70 variants from 9 different genes, some of which have established links to metabolic disorders. By relaxing the genome-wide significance threshold, we identified ‘novel’ risk variants from 11 genes for metabolic traits. Many novel risk variant association signals were observed at or borderline to genome-wide significance. Furthermore, 349 previously established variants from 187 genes were validated in our study. Pleiotropic effect of risk variants on multiple metabolic traits were observed. Fine-mapping illuminated rs7838666/CSMD1 rs1864163/CETP and rs112861901/[INTS10,LPL] as candidate causal variants influencing fasting plasma glucose and high-density lipoprotein levels. Computational functional analysis identified a variety of gene regulatory signals around several variants. This study enlarges the population ancestry diversity of available GWAS and elucidates new variants in an ethnic group burdened with metabolic disorders.

Demographics, Clinical Characteristics, and Management of Idiopathic Intracranial Hypertension in Kuwait: A Single-Center Experience

Background: Idiopathic intracranial hypertension (IIH) affects predominantly obese females during their reproductive age period. The demographics of this condition has not been studied in Kuwait before. Objectives: To determine the demographics, clinical features, risk factors, and treatment modalities of IIH in the main neurology tertiary referral hospital in Kuwait and to compare our data with literature. Methods: A retrospective study was conducted to identify cases of IIH seen between January 1, 2018, and December 31, 2018. Patients were diagnosed in and referred from the neurology and neuro-ophthalmology clinics. Results: Our cohort consisted of 139 patients. We estimated a crude annual incidence rate of IIH of 3.28 per 100,000 population. Female-to-male ratio was 9.6:1. Mean age was 32.1 ± 10.8 years. Mean age of males was 31.46 ± 12.63 and that of females was 32.11 ± 10.67. The median of the duration from the first symptoms till diagnosis was 6 weeks (2-10 weeks). Headache was the most common symptom in 134 (96.4%) patients, followed by visual disturbances in 85 (61.2%) patients, transient visual obscurations (TVOs) in 84 (60.4%) patients, pulsatile tinnitus in 72 (51.8%) patients, diplopia in 22 (15.8%) patients, other symptoms (e.g., nausea, vomiting, radicular neck, and back pain) in 19 (13.7%) patients, and 1 (0.7%) patient had facial weakness. High body mass index (BMI) was seen in 89.9% of patients, either overweight or obese, and it was the most common risk factors in both males (46.2%) and females (61.1%). Anemia was found in 38.1%; 21.6% of patients used OCPs and 7.9% used vitamin A. Bilateral transverse sinus stenosis (BTSS) was detected in 47 (33.8%) patients. Only 2 (1.4%) patients developed "fulminant IIH" characterized by rapidly progressive disease. All the patients received medical treatment and only 12 (8.6%) needed surgical management. Conclusion: Incidence of IIH in Kuwait is similar to other regional studies but higher than Western studies. Demographics and clinical features of IIH in our study are comparable to international and regional figures. Most of our patients had a benign course. IIH is more prevalent in females and strongly associated with obesity.

Prevalence of type 2 diabetes in Middle-East: Systematic review& meta-analysis

BACKGROUND & OBJECTIVES

Type 2 diabetes is increasing in both developed and developing countries due to popularity of western lifestyle and population structure. Then, this systematic review aimed to identify the prevalence and trend of diabetes in the Middle-East region.

METHOD

We searched Google Scholar, PubMed and Medline from 2000 up to 2018. MeSH terms were a combination of "diabetes", "prevalence", "diabetes mellitus", "type 2 diabetes", "Name of Countries" and "Middle East". Pooled estimates were obtained by means of random effect models to account for variation between studies.

FINDING

Of the initially 669 identified articles, a total of 50 reports with 4,263,662 subjects met inclusion criteria. The combined prevalence of diabetes in the region was about 14.6% (95% CI: 11.6-17.5) which varied from 2.6% (95% CI: 2.5-2.6) to 21.9 (95% CI: 16.8-17.5) amongst countries. Therefore, approximately a total of 46 million individuals are now suffering from diabetes in the Middle East based on above-mentioned pooled estimate.

CONCLUSION

The pattern and growing trend of diabetes during last 20 years in the study area is alarming and underline the point that maximal risk reduction for developing diabetes should be at the top of health priorities.

Glycemic control in Kuwaiti diabetes patients treated with glucose-lowering medication

BACKGROUND

Diabetes is prevalent in Kuwait. We aimed to assess the level of glycemic control in Kuwaiti adults with diabetes.

METHODS

The World Health Organization's STEPS non-communicable disease risk factor survey was conducted in Kuwait in 2014. Participants' demographics, medical history, physical measurements and blood biochemistry were assessed. A total of 2561 Kuwaiti men and women aged 18-69 years completed all three survey steps. Glycemic control in 278 individuals with diabetes who were on glucose-lowering medication was determined using the US National Institutes of Health guidelines of fasting plasma glucose (FPG) ≤7.2mmol/l and the American Diabetes Association guidelines of glycated hemoglobin (HbA1c) <7% (53mmol/mol).

RESULTS

Adequate glycemic control in people with drug-treated diabetes was 34.5% when determined by HbA1c, 37.8% when determined by FPG level, and 24.5% when both criteria were met. Mean body-mass index and fasting serum triglycerides were significantly higher and serum high-density lipoprotein-cholesterol significantly lower in individuals with an inadequate glycemic control than in those with adequate control. Women with diabetes were almost twice as likely to have inadequate HbA1c levels as men with diabetes (OR, 1.9, [95% CI, 1.03, 3.5]).

CONCLUSIONS

Glycemic control in Kuwaiti adults with treated diabetes is low. A systemic, multi-disciplinary public health approach is needed to improve diabetes education and adherence to treatment.

The prevalence of undiagnosed type 2 diabetes and prediabetes in Eastern Mediterranean region (EMRO): A systematic review and meta-analysis

BACKGROUND

Previous studies of diabetes in Eastern Mediterranean Region (EMRO) did not assess the prevalence of either unknown diabetes or prediabetes. We conducted a systematic review and meta-analysis to estimate the prevalence of undiagnosed type 2 diabetes and prediabetes as well as variations by region in EMRO, using the relevant publications since 2000.

METHODS

We carried out a comprehensive electronic search on electronic databases from January 1, 2000 to March 1, 2018. We selected cross-sectional and cohort studies reporting the prevalence of undiagnosed type 2 diabetes, prediabetes, or both. Two independent reviewers initially screened the eligible articles; then, synthesized the target data from full papers. Random- or fixed-effect models, subgroup analysis on Human Development Index (HDI), and publication year and sensitivity analysis to minimize the plausible effect of outliers were used.

RESULTS

Amongst 849 identified citations, 55 articles were entered into meta-analysis, involving 567,025 individuals. The forest plots estimated 5.46% (confidence intervals [CI]: 4.77-6.14) undiagnosed diabetic and 12.19% (CI: 10.13-14.24) prediabetics in EMRO. Low HDI countries and high HDI countries had the highest (7.25%; CI: 4.59-9.92) and the lowest (3.98%; CI: 3.11-4.85) undiagnosed diabetes prevalence, respectively. Very high HDI countries and low HDI countries had the highest (13.50%; CI: 8.43-18.57) and the lowest (7.45%; 1.20-13.71) prediabetes prevalence, respectively. In addition, meta-regression analysis showed a statistically significant association between publication year and prevalence of prediabetes (Reg Coef = 0.059, P = 0.014). But such finding was not observed for undiagnosed diabetes and publication year (Reg Coef = 0.034, P = 0.124), prediabetes and HDI (Reg Coef = 0.128, P = 0.31) and undiagnosed diabetes and HDI (Reg Coef = - 0.04, P = 0.96).

CONCLUSION

The prevalence of undiagnosed diabetes and prediabetes was high and increasing. The notion of universal health coverage is a priority; that is the integration of the primary, secondary and tertiary health levels, as well as employing the available action plans. Therefore, future studies, using identical screening tool and diagnostic criteria, are warranted to make an accurate picture of diabetes in EMRO.

Genome-wide association study identifies novel risk variants from RPS6KA1, CADPS, VARS, and DHX58 for fasting plasma glucose in Arab population

Consanguineous populations of the Arabian Peninsula, which has seen an uncontrolled rise in type 2 diabetes incidence, are underrepresented in global studies on diabetes genetics. We performed a genome-wide association study on the quantitative trait of fasting plasma glucose (FPG) in unrelated Arab individuals from Kuwait (discovery-cohort:n = 1,353; replication-cohort:n = 1,196). Genome-wide genotyping in discovery phase was performed for 632,375 markers from Illumina HumanOmniExpress Beadchip; and top-associating markers were replicated using candidate genotyping. Genetic models based on additive and recessive transmission modes were used in statistical tests for associations in discovery phase, replication phase, and meta-analysis that combines data from both the phases. A genome-wide significant association with high FPG was found at rs1002487 (RPS6KA1) (p-discovery = 1.64E-08, p-replication = 3.71E-04, p-combined = 5.72E-11; β-discovery = 8.315; β-replication = 3.442; β-combined = 6.551). Further, three suggestive associations (p-values < 8.2E-06) with high FPG were observed at rs487321 (CADPS), rs707927 (VARS and 2Kb upstream of VWA7), and rs12600570 (DHX58); the first two markers reached genome-wide significance in the combined analysis (p-combined = 1.83E-12 and 3.07E-09, respectively). Significant interactions of diabetes traits (serum triglycerides, FPG, and glycated hemoglobin) with homeostatic model assessment of insulin resistance were identified for genotypes heterozygous or homozygous for the risk allele. Literature reports support the involvement of these gene loci in type 2 diabetes etiology.

Analysis of disease comorbidity patterns in a large-scale China population

BACKGROUND

Disease comorbidity is popular and has significant indications for disease progress and management. We aim to detect the general disease comorbidity patterns in Chinese populations using a large-scale clinical data set.

METHODS

We extracted the diseases from a large-scale anonymized data set derived from 8,572,137 inpatients in 453 hospitals across China. We built a Disease Comorbidity Network (DCN) using correlation analysis and detected the topological patterns of disease comorbidity using both complex network and data mining methods. The comorbidity patterns were further validated by shared molecular mechanisms using disease-gene associations and pathways. To predict the disease occurrence during the whole disease progressions, we applied four machine learning methods to model the disease trajectories of patients.

RESULTS

We obtained the DCN with 5702 nodes and 258,535 edges, which shows a power law distribution of the degree and weight. It further indicated that there exists high heterogeneity of comorbidities for different diseases and we found that the DCN is a hierarchical modular network with community structures, which have both homogeneous and heterogeneous disease categories. Furthermore, adhering to the previous work from US and Europe populations, we found that the disease comorbidities have their shared underlying molecular mechanisms. Furthermore, take hypertension and psychiatric disease as instance, we used four classification methods to predicte the disease occurrence using the comorbid disease trajectories and obtained acceptable performance, in which in particular, random forest obtained an overall best performance (with F1-score 0.6689 for hypertension and 0.6802 for psychiatric disease).

CONCLUSIONS

Our study indicates that disease comorbidity is significant and valuable to understand the disease incidences and their interactions in real-world populations, which will provide important insights for detection of the patterns of disease classification, diagnosis and prognosis.

Exploration of Risk Factors for Type 2 Diabetes among Arabs in Israel

Background:

Type 2 Diabetes Mellitus (T2DM) is becoming increasingly prevalent and is considered to be a major public health threat worldwide. Behavioral and sociodemographic factors associated with T2DM vary within different societies.

Objective:

The aim of this study is to determine the various behavioral and sociodemographic factors associated with T2DM in the Arab society in Israel.

Methods:

A cross-sectional study was conducted based on data from 1,894 residents over the age of 21 belonging to the Arab population in Israel. The data collected from the subjects were subjected to statistical analyses using the SPSS program.

Findings:

Of the total sample population, 13.7% were found to be affected with T2DM. The prevalence of T2DM increased sharply in the successive age groups of both men and women. The prevalence of T2DM was found to increase progressively particularly in women with an increase in BMI (~20%, 37% and 44% respectively), while, in men it increased sharply (from 25% to ~50%) until a BMI of 29.9; it then decreased drastically (to ~24%) for a BMI of ≥30. About 85% of the men affected with T2DM were physically inactive, while 97% of the affected women were physically inactive. Almost half of the participants with diabetes have a family history of the disease in both genders. In the multivariate analysis, it was found that age, obesity, physical inactivity and family history of the disease were the significant factors associated with the prevalence of diabetes.

Conclusions:

It could be concluded that age, obesity, family history and physical inactivity were the significant factors associated with the prevalence of T2DM within the Arab society in Israel.

Prevalence of Type 2 Diabetes Mellitus Among Men in the Middle East: A Retrospective Study

The rising prevalence of diabetes mellitus (DM) is a serious global health concern. The world is experiencing type 2 diabetes epidemics and prevalence differs by gender, regions, and level of socioeconomic development. Type 2 diabetes mellitus (T2DM) in men increased at a faster rate and numbers are continuing to rise in some regions of the world. This study aimed to estimate the prevalence of T2DM among men in the Middle East countries. Seventy-four research articles were identified through search engines including Web of Science, Medline, PubMed, EMBASE, Scopus, and Ovid databases by using keywords "epidemiology," "prevalence," "diabetes mellitus," and individual names of the Middle East states. Finally, 17 studies were included for the assessment of prevalence of T2DM among men in the Middle East. In the Middle East, high prevalence of T2DM among men was identified in Bahrain (33.60%), Saudi Arabia (29.10%), United Arab Emirates (UAE; 25.83%), and Kuwait (25.40%), whereas low prevalence was reported in Iran (9.90%) and Yemen (9.80%). The random pooled prevalence in the Gulf Cooperation Council (GCC) states was (24.0%) compared to non-GCC states (16.0%), and in both GCC and non-GCC countries combined, it was 19%. The prevalence was significantly associated with the gross domestic product of these states ( p = .0005). Despite different socioeconomic and cultural settings in the Middle East, the rising T2DM prevalence among men was identified in Bahrain, Saudi Arabia, UAE, and Kuwait. These states must incorporate future diabetes defensive strategies targeting the Middle East population to minimize the burden of DM from the region.

Understanding health information management practices in public hospitals in Kuwait

BACKGROUND

Health information technology (IT) solutions can aid healthcare reform efforts, but without proper information management, these efforts are futile. In this study, we used Kuwait as an example of a high per-capita gross domestic product country that faces information management challenges to draw insights that can be generalised to other developed countries.

OBJECTIVE

(i) to uncover the status quo of information management practices in public hospitals and (ii) to offer recommendations to improve them.

METHOD

This study analysed qualitative and quantitative accreditation-related data pertaining to the compliance with the information management standard at all secondary care public hospitals over two accreditation cycles.

RESULTS

Overall, public hospitals had made positive progress in their compliance with the information management standard. However, issues still existed with (i) developing and implementing an information management plan, (ii) involving the appropriate stakeholders in selecting health IT solutions and (iii) access to the Internet by staff and patients.

CONCLUSION

Evidence underscored the importance of proper information management driven by clear centralised strategic plans.

IMPLICATIONS

With the rapid adoption of digital health systems, the role of health information management leaders should not be undervalued. Embracing health IT solutions with strong information management practices can aid healthcare reform efforts.

Diabetes in the Middle East: Government Health Care Policies and Strategies that Address the Growing Diabetes Prevalence in the Middle East

PURPOSE OF REVIEW

Diabetes is a primary public health concern and a challenge for health decision makers in this century. Though the number of people with diabetes is increasing all over the globe, the very high prevalence of diabetes in many Middle East countries has made this region one of the global diabetes hot spots. Due to rapid socioeconomic growth, lifestyle changes and increasing obesity prevalence, the number of people with diabetes is expected to double by 2045 in this region. This high prevalence of diabetes imposes a substantial socioeconomic impact on the individual and governments in this region. The governments in the Middle East have devised many policies, programs, and strategies to address the growing prevalence of diabetes. In this article, we aim to review such policies, programs, and the magnitude of diabetes in this part of the world.

RECENT FINDINGS

Faced with a challenge on a high scale, most governments in the Middle East are making progress in responding to diabetes. Diabetes is a chronic and costly disease; however, it can be prevented. The alarm of the rising tide of diabetes has not yet been successfully translated into action in the Middle East. The governments in the region need to devise more intense, broader policies and preventive measure programs based on local sociocultural practices to effectively combat the situation. Further improvements of the primary health care system and cross-governmental approaches are needed in the region to keep the growing epidemic of diabetes under control.

A Perception on Genome-Wide Genetic Analysis of Metabolic Traits in Arab Populations

Despite dedicated nation-wide efforts to raise awareness against the harmful effects of fast-food consumption and sedentary lifestyle, the Arab population continues to struggle with an increased risk for metabolic disorders. Unlike the European population, the Arab population lacks well-established genetic risk determinants for metabolic disorders, and the transferability of established risk loci to this population has not been satisfactorily demonstrated. The most recent findings have identified over 240 genetic risk loci (with ~400 independent association signals) for type 2 diabetes, but thus far only 25 risk loci (ADAMTS9, ALX4, BCL11A, CDKAL1, CDKN2A/B, COL8A1, DUSP9, FTO, GCK, GNPDA2, HMG20A, HNF1A, HNF1B, HNF4A, IGF2BP2, JAZF1, KCNJ11, KCNQ1, MC4R, PPARγ, SLC30A8, TCF7L2, TFAP2B, TP53INP1, and WFS1) have been replicated in Arab populations. To our knowledge, large-scale population- or family-based association studies are non-existent in this region. Recently, we conducted genome-wide association studies on Arab individuals from Kuwait to delineate the genetic determinants for quantitative traits associated with anthropometry, lipid profile, insulin resistance, and blood pressure levels. Although these studies led to the identification of novel recessive variants, they failed to reproduce the established loci. However, they provided insights into the genetic architecture of the population, the applicability of genetic models based on recessive mode of inheritance, the presence of genetic signatures of inbreeding due to the practice of consanguinity, and the pleiotropic effects of rare disorders on complex metabolic disorders. This perspective presents analysis strategies and study designs for identifying genetic risk variants associated with diabetes and related traits in Arab populations.

Use of Non-invasive Parameters and Machine-Learning Algorithms for Predicting Future Risk of Type 2 Diabetes: A Retrospective Cohort Study of Health Data From Kuwait

Objective: In recent decades, the Arab population has experienced an increase in the prevalence of type 2 diabetes (T2DM), particularly within the Gulf Cooperation Council. In this context, early intervention programmes rely on an ability to identify individuals at risk of T2DM. We aimed to build prognostic models for the risk of T2DM in the Arab population using machine-learning algorithms vs. conventional logistic regression (LR) and simple non-invasive clinical markers over three different time scales (3, 5, and 7 years from the baseline). Design: This retrospective cohort study used three models based on LR, k-nearest neighbours (k-NN), and support vector machines (SVM) with five-fold cross-validation. The models included the following baseline non-invasive parameters: age, sex, body mass index (BMI), pre-existing hypertension, family history of hypertension, and T2DM. Setting: This study was based on data from the Kuwait Health Network (KHN), which integrated primary health and hospital laboratory data into a single system. Participants: The study included 1,837 native Kuwaiti Arab individuals (equal proportion of men and women) with mean age as 59.5 ± 11.4 years. Among them, 647 developed T2DM within 7 years of the baseline non-invasive measurements. Analytical methods: The discriminatory power of each model for classifying people at risk of T2DM within 3, 5, or 7 years and the area under the receiver operating characteristic curve (AUC) were determined. Outcome measures: Onset of T2DM at 3, 5, and 7 years. Results: The k-NN machine-learning technique, which yielded AUC values of 0.83, 0.82, and 0.79 for 3-, 5-, and 7-year prediction horizons, respectively, outperformed the most commonly used LR method and other previously reported methods. Comparable results were achieved using the SVM and LR models with corresponding AUC values of (SVM: 0.73, LR: 0.74), (SVM: 0.68, LR: 0.72), and (SVM: 0.71, LR: 0.70) for 3-, 5-, and 7-year prediction horizons, respectively. For all models, the discriminatory power decreased as the prediction horizon increased from 3 to 7 years. Conclusions: Machine-learning techniques represent a useful addition to the commonly reported LR technique. Our prognostic models for the future risk of T2DM could be used to plan and implement early prevention programmes for at risk groups in the Arab population.

The Status of Metabolic Control in Patients With Type 2 Diabetes Attending Dasman Diabetes Institute, Kuwait

Purpose: To evaluate metabolic control in patients with type 2 diabetes at Dasman Diabetes Institute (DDI, Kuwait), a specialist diabetes clinic and research center, and to investigate its association with patient demographics and clinical characteristics. Methods: Data from 963 patients with type 2 diabetes were retrospectively collected from the Knowledge Based Health Records maintained at DDI for patients who attended DDI during 2011-2014. The collected data included patient demographics, clinical characteristics, and anti-diabetic medications. Student's t-test was used to evaluate the differences in mean values between poor and good glycemic control groups. Categorical variables were assessed using chi-square analysis with Fisher's exact test for small data sets. Results: The patients' mean age was 53.0 ± 9.5 years with equal number of males and females. Females (34.4 ± 7.2 kg/m²) had a higher mean body mass index than males (32.1 ± 6.4 kg/m²). The mean fasting blood glucose and HbA1c levels were 9.6 ± 3.8 mmol/L and 8.5 ± 1.8%, respectively. Dyslipidemia (46%) and hypertension (40%) were the most common comorbidities, whereas nephropathy (36%) and neuropathy (35%) were the most common diabetic complications. The most commonly used anti-diabetic medication was metformin (55%). Factors significantly associated with poor glycemic control (HbA1c level ≥ 7%) included insulin use; neuropathy or foot ulcers as diabetic complications; and elevated systolic blood pressure and total cholesterol, low-density lipoprotein (LDL) cholesterol, triglycerides, and fasting blood glucose levels. Factors significantly associated with good glycemic control included metformin use and elevated high-density lipoprotein cholesterol level. The proportion of patients with good glycemic control (HbA1c level < 7%) was 29.5%. A large proportion of the patients with poor glycemic control were only administered monotherapy drugs, and two-thirds of the patients were obese. Further, the American Diabetes Association (ADA) recommendations for blood pressure and LDL cholesterol level were met (62 and 63%, respectively) by follow-up year 4. Conclusion: The therapeutic management of type 2 diabetes in Kuwait is suboptimal. Therapeutic strategies should ensure better adherence to ADA guidelines, evaluate the high obesity rates, and adherence to lifestyle recommendations by patients, and continually promote diabetes education and self-empowerment.

Incidence of Type 2 Diabetes in Kuwaiti Children and Adolescents: Results From the Childhood-Onset Diabetes Electronic Registry (CODeR)

Background: Type 2 Diabetes (T2D) in children and adolescents has become an important public health concern due to the increase in childhood obesity worldwide. The urgency to address T2D is evident as children and adolescents are at a higher risk of complications due to prolonged disease duration. We aimed to estimate the incidence rate (IR) of T2D in Kuwaiti children and adolescents aged 14 years and younger between 2011 and 2013 and to describe their clinical characteristics at the time of diagnosis. Material and Methods: All newly diagnosed patients were registered through the Childhood-Onset Diabetes electronic Registry implemented in Kuwait. Cases who met the 2018 ISPAD guidelines for diagnosis of T2D were included. Results: A total of 32 patients were included, equally distributed gender-wise, with a mean age 12.2 years (±1.7 SD), lower for females than males (11.5 vs. 12.2, p < 0.025). Data ascertainment was 94.1% (95%CI; 91.6-96.6%). Overall IR was 2.56 (95% CI; 1.78-3.56) per 100,000 Kuwaiti children and adolescents per year. Most of the patients (n = 30; 93.8%) presented with T2D between the ages 10-14 years, with age-specific IR of 8.0 (95%CI; 5.5-11.3). No statistically significant difference between males and females with regards to BMI z scores or HbA1C at diagnosis. Conclusion: The true incidence of T2D in Kuwaiti children and adolescents is expected to be considerably higher as we have reported only symptomatic cases. Future research should focus on screening children and adolescents at risk to enable accurate estimates. More efforts are needed to better understand the clinical course of T2D early in life to improve management, prevent complications and improve quality of life.

Glycaemic control in native Kuwaiti Arab patients with type 2 diabetes

AIMS

To evaluate the influence of age at diabetes diagnosis, diabetes duration, BMI, comorbidity with hypertension and medication regimen on glycaemic control in native Kuwaiti Arab patients with T2D.

METHODS

This cross-sectional study considered 7657 patients from Kuwait Diabetes Registry and analysed data from their laboratory and hospital records.

RESULTS

HbA1c and prevalence of hypertension increased significantly with diabetes duration. Duration of diabetes (β=0.034; P<0.001) and age at diagnosis (β=-0.03; P<0.001) were independently associated with HbA1c. Inadequate glycaemic control was more likely in patients diagnosed at <60 than in those ≥60 years of age (OR:1.80, 95%-CI:1.39-2.31). Increasing duration of diabetes witnessed decrease in metformin prescription and increase in sulfonylureas prescription; proportion of patients treated with insulin increased from 5.6% to 44.4% in 9 years of diagnosis. Patients with 9-years duration of diabetes or with combination therapy of insulin-metformin-sulfonylureas differed in mean BMI for adequate or inadequate glycaemic control (29.5 versus 31.2kg/m²; P<0.001 and 29.8 versus 33.2; P<0.01, respectively).

CONCLUSIONS

Only 25.6% of the T2D patients in this ethnic cohort exhibited adequate glycaemic control. The delineated relationship of inadequate glycaemic control with diabetes duration, onset age, obesity and hypertension prevalence has a bearing on diabetes management programs for Arabs.

Diabetes and TelecommunicationS (DATES) study to support self-management for people with type 2 diabetes: a randomized controlled trial

Background

The increasing prevalence of type 2 diabetes and suboptimal glycaemic control in Kuwait requires novel, wide-reaching, low-cost interventions to motivate and mobilise individuals towards more effective self-management. More than 2 million people in Kuwait own mobile phones. We will test whether automated personalised health text messages based on principles of motivational interviewing and are responsive to biodata delivered remotely is potentially effective in improving glycaemic control compared to usual care.

Methods

This is a two-arm parallel single-blind randomised controlled trial of 572 individuals with type 2 diabetes in Kuwait. We will develop a culturally appropriate database of text messages supporting positive lifestyle changes in type 2 diabetes. A computer programme will deliver over 400 text messages over a 12-month period using algorithms which provide participants with information on diet and physical activity as well as personalised messages regarding motivators to change behaviours. Individuals aged 18–75 years with established type 2 diabetes who are fluent in Arabic or English and officially resident in Kuwait will be identified via screening of hospital diabetes clinic and primary care practices and invited to participate. A sample of 572 participants will be randomised to usual care or usual care plus the DATES text message intervention. Randomisation will be conducted by an independent Clinical Trials Unit and researchers collecting baseline and outcome data will be blinded to treatment allocation. The primary outcome is change in HbA1c and weight at 12 months in both study arms. Secondary outcomes will include changes in physical activity, fasting lipids and quality of life in both study arms.

Discussion

The potential of mobile phones in improving diabetes self-care in settings with a high prevalence of diabetes and widespread mobile phone usage has face validity. Mobile phones and text messaging are an understudied virtual communication media which can deliver discrete focused psychological support to motivate and enable diabetes self-care changes.

Trial registration

ISRCTN10342151. 11/03/2015.

Electronic supplementary material

The online version of this article (10.1186/s12889-018-6136-8) contains supplementary material, which is available to authorized users.

Assessment of coding region variants in Kuwaiti population: implications for medical genetics and population genomics

Consanguineous populations of the Arabian Peninsula have been underrepresented in global efforts that catalogue human exome variability. We sequenced 291 whole exomes of unrelated, healthy native Arab individuals from Kuwait to a median coverage of 45X and characterised 170,508 single-nucleotide variants (SNVs), of which 21.7% were ‘personal’. Up to 12% of the SNVs were novel and 36% were population-specific. Half of the SNVs were rare and 54% were missense variants. The study complemented the Greater Middle East Variome by way of reporting many additional Arabian exome variants. The study corroborated Kuwaiti population genetic substructures previously derived using genome-wide genotype data and illustrated the genetic relatedness among Kuwaiti population subgroups, Middle Eastern, European and Ashkenazi Jewish populations. The study mapped 112 rare and frequent functional variants relating to pharmacogenomics and disorders (recessive and common) to the phenotypic characteristics of Arab population. Comparative allele frequency data and carrier distributions of known Arab mutations for 23 disorders seen among Arabs, of putative OMIM-listed causal mutations for 12 disorders observed among Arabs but not yet characterized for genetic basis in Arabs, and of 17 additional putative mutations for disorders characterized for genetic basis in Arab populations are presented for testing in future Arab studies.

Registered blindness in Kuwait - 15 years of dynamic changes

PURPOSE

Incidence rate of registered blindness and low vision (IR) among the Kuwaitis from 2005 to 2014 and longitudinal changes since 2000.

METHODS

Data of newly certified Kuwaitis with best-corrected visual acuity 0.1 or less or visual field constriction to 20 ° or less in their better eye, aggregated in intervals from 2005 to 2009 and 2010 to 2014 and presented as IR per 100 000 person years of observation by age, gender, severity and leading cause.

RESULTS

Delayed certification resulted in rise of IR from 2005. IR of males declined since 2010, whereas among the females it continued rising at a slower rate. After 2010 IR of patients from 40 to 59 years expanded significantly and declined in the group over 60 years. Retinitis pigmentosa was the leading cause driven by high prevalence of consanguineous marriages; the large difference between the males and females is due mainly to cultural factors. Diabetic complications escalated from 2005 affecting patients over 40 years. Glaucoma became the leading cause in the age over 60 years after 2005 and while the male patients decreased after 2010 by 18%, disabled females grew by further 35%.

CONCLUSIONS

Demographic, social and behavioral factors had impact on the structure and time trends of registered blindness among the Kuwaitis. High prevalence of diabetes and aging of the population resulted in rise of certification from diabetic complications and glaucoma in the last 10 years.

The prevalence of pre-diabetes and diabetes in the Kuwaiti adult population in 2014

BACKGROUND

Kuwait ranks among the top 20 countries worldwide in diabetes prevalence. This study's objectives were to assess the prevalence of pre-diabetes and diabetes in Kuwaiti adults.

METHODS

Kuwaiti citizens aged 18-69 years (n = 3915) were studied using the WHO's STEPwise survey methodology, including its Instrument for Chronic Disease Risk Factor Surveillance. Participants' demographics, medical history, physical measurements and blood biochemistry were assessed. A subset of 2561 individuals completed all three survey steps, including fasting plasma glucose (FPG) and HbA1c assays. The study assessed the prevalence of pre-diabetes (FPG 6.1-6.9 mmol/L or HbA1c level 5.7-6.4%) and diabetes (self-reported history of diabetes with prescription of diabetes medications or FPG ≥ 7 mmol/L or HbA1c level ≥6.5%).

RESULTS

The prevalence of pre-diabetes was 19.4% [95% CI: 17.9-21.0%] (By sex: Men, 19.3%; Women, 19.5%; p = 0.92; By age (years): 18-29 y, 13.9%; 30-44 y, 22.6%; 45-59 y, 25.8%; 60-69 y, 16.4%; p < 0.001). The prevalence of diabetes was 18.8% [17.3-20.4%] (By sex: Men, 20.4%; Women, 17.4%; p = 0.055; By age: 18-29 y, 6.6%; 30-44 y, 14.0%; 45-59 y, 36.7%; 60-69 y, 62.8%; p < 0.001), of whom 41.5% were previously undiagnosed. Diabetes prevalence was 27.4% among those with body mass index (BMI) ≥ 30 kg/m², 29% among those with elevated waist-hip ratio and 36% among those with hypertension. Diabetes was positively associated with BMI, waist-hip ratio and blood pressure level. Pre-diabetes was positively associated with BMI and waist-hip ratio, but not blood pressure level.

CONCLUSIONS

Almost 40% of Kuwaiti citizens had pre-diabetes or diabetes. Urgent public health action is needed to decrease diabetes prevalence and thus avoid associated morbidity and mortality.

Genome-wide association study identifies novel recessive genetic variants for high TGs in an Arab population

Abnormal blood lipid levels are influenced by genetic and lifestyle/dietary factors. Although many genetic variants associated with blood lipid traits have been identified in Europeans, similar data in Middle Eastern populations are limited. We performed a genome-wide association study with Arab individuals (discovery cohort: 1,353; replication cohort: 1,176) from Kuwait to identify possible associations of genetic variants with high lipid levels. We used Illumina HumanOmniExpress BeadChip and candidate SNP genotyping in the discovery and replication phases, respectively. For association tests, we used genetic models that were based on additive and recessive modes of inheritance. High triglycerides (TGs) were recessively associated with six risk variants (rs1002487/RPS6KA1, rs11805972/LAD1) rs7761746/Or5v1, rs39745/CTTNBP2-LSM8, rs2934952/PGAP3, and rs9626773/RP11-191L9.4-CERK) at genome-wide significance (P  6.12E-09), and another six variants (rs10873925/ST6GALNAC5, rs4663379/SPP2-ARL4C, rs10033119/NPY1R, rs17709449/LINC00911-FLRT2, rs11654954/CDK12-NEUROD2, and rs9972882/STARD3) were associated at borderline significance (P  5.0E-08). High TG was also additively associated with rs11654954. All of the 12 identified markers are novel and are harbored in runs of homozygosity. Literature evidence supports the involvement of these gene loci in lipid-related processes. This study in an Arab population augments international efforts to identify genetic regulation of lipid traits.

Prevalence of Anemia in Type 2 Diabetic Patients

Background

The aim of the study was to determine the prevalence of anemia in patients with type 2 diabetes and to assess the risk of anemia according to gender, age and glycemic control.

Methods

The study group comprised of patients with type 2 diabetes attending Outpatient Diabetic Department of Amiri Hospital (Al-Asimah Capital area) from January 1, 2016 to December 31, 2017. Patients were divided into groups according to glycemic status and gender. Glycated hemoglobin (HbA1C) values and hemoglobin (Hb) levels were evaluated. The presence of anemia was defined by an Hb level < 13.0 g/dL for men and < 12.0 g/dL for women.

Results

The prevalence of anemia is significantly greater in diabetic females (38.5%) than in diabetic males (21.6%) and in poorly controlled diabetics (33.46%) than those with glycemic status under control (27.9%) (P < 0.05). The average age of patients with anemia was found to be 60.69 ± 0.198 years and the average age of patients without anemia was found to be 54.07 ± 0.121 years. This indicates that the risk of anemia increases with age.

Conclusion

Screening for anemia at the time of diagnosis of diabetes, diabetic medication compliance, awareness of the risk of anemia and other complications in the diabetic patients helps in reducing the prevalence of anemia in diabetic population.

A qualitative study exploring patients' experiences regarding insulin pump use

BACKGROUND

Diabetes is a threat to peoples' lives around the world, particularly in the Middle East. Medicine misuse and poor glycaemic control are prevalent among patients with type 2 diabetes, especially insulin-dependent patients (Alsairafi et al., 2016). With advances in medical technology, insulin pumps became a treatment option for patients with type 1 diabetes and those with insulin-dependent type 2 diabetes. However, use of these devices is still lacking in Kuwait, particularly in patients with type 2 diabetes. Information on how patients manage these devices and their efficacy and safety from the perspectives of patients is also lacking (Alsaleh et al., 2016).

OBJECTIVE

To examine the views and experiences of adults with type 2 diabetes regarding the use of insulin pumps compared to their previous insulin delivery methods, in terms of glycaemic control, quality of life, preference, convenience and adherence to doses.

SETTING

The main five secondary-care hospitals in Kuwait: Mobarak Al-Kabeer, Al Amiri, Al Adan, Al Farwaniya and Al Jahra.

METHOD

All adults with type 2 diabetes who used an insulin pump were invited to participate. Data were collected through semi-structured interviews. Data analysis was performed using MAXQDA-11.

RESULTS

A total of eight patients were interviewed. Interviews with patients revealed that using an insulin pump improved patients' glycaemic control and quality of life as a consequence of improved satisfaction and adherence to doses.

CONCLUSION

From the perspective of adults with type 2 diabetes, there are lots of benefits of using insulin pumps over other insulin delivery methods, mainly seen by the improvement of quality of life and patients' adherence to doses. Policy-makers and healthcare professionals (HCPs) must be aware of such benefits and should support the wider implementation of this technology in the country by including patients with type 2 diabetes. Results of this study will help to inform healthcare provision and guideline modifications and to provide guidance for new patients using this therapy.

Sequence Analysis of APOA5 Among the Kuwaiti Population Identifies Association of rs2072560, rs2266788, and rs662799 With TG and VLDL Levels

Common variants of Apolipoprotein A5 (APOA5) have been associated with lipid levels yet very few studies have reported full sequence data from various ethnic groups. The purpose of this study was to analyse the full APOA5 gene sequence to identify variants in 100 healthy Kuwaitis of Arab ethnicities and assess their association with variation in lipid levels in a cohort of 733 samples. Sanger method was used in the direct sequencing of the full 3.7 Kb APOA5 and multiple sequence alignment was used to identify variants. The complete APOA5 sequence in Kuwaiti Arabs has been deposited in GenBank (KJ401315). A total of 20 reported single nucleotide polymorphisms (SNPs) were identified. Two novel SNPs were also identified: a synonymous 2197G>A polymorphism at genomic position 116661525 and a 3′ UTR 3222 C>T polymorphism at genomic position 116660500 based on human genome assembly GRCh37/hg:19. Five SNPs along with the two novel SNPs were selected for validation in the cohort. Association of those SNPs with lipid levels was tested and minor alleles of three SNPs (rs2072560, rs2266788, and rs662799) were found significantly associated with TG and VLDL levels. This is the first study to report the full APOA5 sequence and SNPs in an Arab ethnic group. Analysis of the variants identified and comparison to other populations suggests a distinctive genetic component in Arabs. The positive association observed for rs2072560 and rs2266788 with TG and VLDL levels confirms their role in lipid metabolism.

Diabetes-Related Knowledge and Preventative Practices Among Government Employees with Diabetes in Kuwait

Objectives

Diabetes mellitus (DM)-related knowledge and preventative practices are vital for the successful management of this condition. In Kuwait, few studies have been conducted to evaluate the knowledge and preventative practices of DM patients. This study aimed to assess DM-related knowledge and preventative practices among government employees with DM in Kuwait and to examine associations between DM knowledge, preventative practices and other variables.

Methods

This cross-sectional study was conducted in June 2015 and involved 345 employees with DM from 15 government ministries in Kuwait. A self-administered Arabic-language questionnaire was designed to assess DM-related knowledge and preventative practices based on the Diabetes Knowledge Test and the recommendations of the American Diabetes Association, respectively.

Results

A total of 312 ministry employees agreed to participate in the study (response rate: 90.4%). The mean age was 45.6 ± 10.6 years. A total of 63.4% were male and 64.1% were Kuwaiti. The median DM knowledge score was 9 out of 14 and the median preventative practice score was 5 out of 14. High knowledge scores were significantly associated with education (β = 1.510; P ≤0.001) and income (β = 0.896; P ≤0.001). High preventative practice scores were significantly associated with income (β = 1.376; P = 0.002), DM duration (β = 0.919; P = 0.026) and knowledge scores (β = 1.783; P = 0.015).

Conclusion

Government employees in Kuwait were found to have average DM knowledge and poor preventative practices. It is therefore imperative that policy-makers develop educational and health-promoting campaigns to target government employees with DM in Kuwait.

Anemia in diabetes: Experience of a single treatment center in Kuwait

AIMS

Diabetes mellitus is the most common metabolic disorder in Kuwait. Anemia is a known outcome of diabetes and its related complications. This study examined the prevalence of anemia in diabetic subjects in Kuwait as well as any association between the presence of anemia with Hemoglobin A_1c and diabetes complications.

METHODS

The study subjects were diabetic patients with complete records and two or more visits at Dasman Diabetes Institute. Patient's data included demographics, complications, medications and laboratory results. Descriptive statistics were applied using SPSS.

RESULTS

Of 1580 included diabetic patients; the prevalence of anemia was 28.5% (95% CI: 26.3, 30.8). Diabetic females had a higher rate of anemia compared to males (35.8% vs. 21.3% respectively, p<0.001). There was no association between diabetes control (HbA_1c) and anemia in both genders (p=0.887). Patients with elevated serum creatinine and microalbuminuria were more likely to be anemic (p<0.001). Diabetic patients with anemia had higher presence of peripheral neuropathy and diabetic foot (p<0.001).

CONCLUSION

This study shows high prevalence of anemia in diabetic patients, particularly in those with diabetic complications. These results should prompt treatment centers to include anemia investigation and management within their diabetes treatment protocols to reduce morbidity in diabetes.

The TCN2 variant of rs9606756 [Ile23Val] acts as risk loci for obesity-related traits and mediates by interacting with Apo-A1

OBJECTIVE

Despite alarming obesity levels in the Arabian Peninsula, its population lacks convincingly identified genetic determinants of obesity. A genome-wide association study was performed for obesity-related anthropometric traits in Arabs and to decipher mechanisms by which the variants mediate traits.

METHODS

The Illumina HumanOmniExpress BeadChip was used to genotype 1,353 Arab individuals (largely with Class I obesity) from Kuwait. Genome-wide association tests for obesity-related anthropometric traits were performed. Top associations were tested for replication in an independent cohort (1,176 unrelated Arabs). Resultant variants were investigated for interactions with obesity-related plasma biomarkers. Pathway analysis was performed on genes harboring markers in linkage disequilibrium (LD) with identified variants.

RESULTS

The rs9606756[c.67A>G,p.Ile23Val] variant from TCN2 was associated with waist circumference (WC) at nearly genome-wide significance (P = 8.92E-08). WC was inversely related with Apo-A1 or high-density lipoprotein levels; individuals with the AG genotype exhibited stronger relationship than those with the reference AA genotype. Interaction involving the AG genotype (effect allele = G) significantly contributed to an increase in anthropometric traits (particularly WC). Genes harboring single-nucleotide polymorphisms in LD with rs9606756 mapped onto an interaction network (with TP53 as central element) of established obesity/diabetes-related protein components.

CONCLUSIONS

The TCN2 variant acts as a risk factor for WC in the Arab population. The variant mediates obesity-related anthropometric traits via interactions with Apo-A1/high-density lipoprotein or TP53.

Ethnic differences in association of high body mass index with early onset of Type 1 diabetes - Arab ethnicity as case study

Objective

The “accelerator hypothesis” predicts early onset of Type 1 diabetes (T1D) in heavier children. Studies testing direction of correlation between body mass index (BMI) and age at onset of T1D in different continental populations have reported differing results–inverse, direct, and neutral. Evaluating the correlation in diverse ethnic populations is required to generalize the accelerator hypothesis.

Methods

The study cohort comprised 474 Kuwaiti children of Arab ethnicity diagnosed with T1D at age 6 to 18 years during 2011–2013. Age- and sex-adjusted BMI z-scores were calculated by comparing the BMI measured at diagnosis with Kuwaiti pediatric population reference data recorded during comparable time-period. Multiple linear regression and Pearson correlation analyses were performed.

Results

BMI z-score was seen inversely associated with onset age (r,-0.28; p-value<0.001). Children with BMI z-score>0 (i.e. BMI >national average) showed a stronger correlation (r,-0.38; p-value<0.001) than those with BMI z-score<0 (r,-0.19; p-value<0.001); the former group showed significantly lower mean onset age than the latter group (9.6±2.4 versus 10.5±2.7; p-value<0.001). Observed inverse correlation was consistent with that seen in Anglo-saxon, central european, caucasian, and white children while inconsistent with that seen in Indian, New Zealander, and Australian children.

Conclusions

The accelerator hypothesis generalizes in Arab pediatric population from Kuwait.

Genetic risk variants for metabolic traits in Arab populations

Despite a high prevalence of metabolic trait related diseases in Arabian Peninsula, there is a lack of convincingly identified genetic determinants for metabolic traits in this population. Arab populations are underrepresented in global genome-wide association studies. We genotyped 1965 unrelated Arab individuals from Kuwait using Cardio-MetaboChip, and tested SNP associations with 13 metabolic traits. Models based on recessive mode of inheritance identified Chr15:40531386-rs12440118/ZNF106/W->R as a risk variant associated with glycated-hemoglobin at close to ‘genome-wide significant’ p-value and five other risk variants ‘nominally’ associated (p-value ≤ 5.45E-07) with fasting plasma glucose (rs7144734/[OTX2-AS1,RPL3P3]) and triglyceride (rs17501809/PLGRKT; rs11143005/LOC105376072; rs900543/[THSD4,NR2E3]; and Chr12:101494770/IGF1). Furthermore, we identified 33 associations (30 SNPs with 12 traits) with ‘suggestive’ evidence of association (p-value < 1.0E-05); 20 of these operate under recessive mode of inheritance. Two of these ‘suggestive’ associations (rs1800775-CETP/HDL; and rs9326246-BUD13/TGL) showed evidence at genome-wide significance in previous studies on Euro-centric populations. Involvement of many of the identified loci in mediating metabolic traits was supported by literature evidences. The identified loci participate in critical metabolic pathways (such as Ceramide signaling, and Mitogen-Activated Protein Kinase/Extracellular Signal Regulated Kinase signaling). Data from Genotype-Tissue Expression database affirmed that 7 of the identified variants differentially regulate the up/downstream genes that mediate metabolic traits.

Prevalence of poor glycemic and blood pressure control and pattern of drug use among primary health-care outpatients in Al Ahsa Saudi Arabia

OBJECTIVES

To assess drug use pattern and the effect on glycemic and blood pressure (BP) control in type 2 diabetes mellitus (T2DM) and hypertensive patients. Furthermore, to evaluate the duration of drug use and antecedence in diagnosis.

METHODOLOGY

A cross-sectional study design, comprising interview/questionnaire targeting outpatients attending primary health centers in Al Ahsa was adopted. During the interview, their fasting blood glucose, weight, and height were measured, along with their BP. Time and duration of drug use were recorded. The history, sociodemographic data and the presence of any other disease conditions were also documented.

RESULTS

The highest number of uncontrolled BP and poor glycemic control was among the age group of 45 and 49 years. Significant number of the patients (92.9%) had body mass index >30 kg/m². The prevalence of developing hypertension before T2DM among participants was 59.9%. A significant number (84%) had uncontrolled hypertension, and 67.3% had uncontrolled T2DM. Drug use pattern revealed single or combinations according to clinical guidelines initially but did not follow through in meeting targets. Majority received angiotensin converting enzyme inhibitors, amlodipine or atenolol for BP control and metformin for T2DM. Patients diagnosed between 1 and 5 years displayed significant poor glycemic and BP control. Significantly, most patients appeared to have been on same prescriptions for a longer time without review.

CONCLUSION

Poor glycemic and BP controls observed in this study could be due to deficient treatment strategy among others. Patients were, however, not adequately managed in line with prescribed clinical guidelines.

Ketoacidosis at first presentation of type 1 diabetes mellitus among children: a study from Kuwait

We examined the frequency and severity of diabetic ketoacidosis (DKA) in 679 children and adolescents (0-14 years) at diagnosis of Type 1 Diabetes Mellitus (T1DM) in Kuwait. Between 1(st) January 2011 and 31(st) December 2013, all newly diagnosed children with diabetes were registered prospectively in a population-based electronic register. DKA was diagnosed using standard criteria based on the levels of venous pH and serum bicarbonate. At the time of diagnosis, mild/moderate DKA was present in 24.8% of the children, while severe DKA was present in 8.8%. Incidence of ketoacidosis was significantly higher in young children less than 2 (60.7% vs 32.4% p = <0.005) compared to children 2-14 years old, and a higher proportion presented with severe DKA (21.4% vs 8.3% p = <0.05). No association was seen with gender. Significant differences were found in the incidence of DKA between Kuwaiti and non-Kuwaiti children (31.1% vs 39.8%; p < 0.05). Family history of diabetes had a protective effect on the occurrence of DKA (OR = 0.44; 95% CI = 0.27-0.71). Incidence of DKA in children at presentation of T1DM remains high at 33.6%. Prevention campaigns are needed to increase public awareness among health care providers, parents and school teachers in Kuwait.

Comorbidity Analysis According to Sex and Age in Hypertension Patients in China

BACKGROUND

Hypertension, an important risk factor for the health of human being, is often accompanied by various comorbidities. However, the incidence patterns of those comorbidities have not been widely studied.

AIM

Applying big-data techniques on a large collection of electronic medical records, we investigated sex-specific and age-specific detection rates of some important comorbidities of hypertension, and sketched their relationships to reveal the risk for hypertension patients.

METHODS

We collected a total of 6,371,963 hypertension-related medical records from 106 hospitals in 72 cities throughout China. Those records were reported to a National Center for Disease Control in China between 2011 and 2013. Based on the comprehensive and geographically distributed data set, we identified the top 20 comorbidities of hypertension, and disclosed the sex-specific and age-specific patterns of those comorbidities. A comorbidities network was constructed based on the frequency of co-occurrence relationships among those comorbidities.

RESULTS

The top four comorbidities of hypertension were coronary heart disease, diabetes, hyperlipemia, and arteriosclerosis, whose detection rates were 21.71% (21.49% for men vs 21.95% for women), 16.00% (16.24% vs 15.74%), 13.81% (13.86% vs 13.76%), and 12.66% (12.25% vs 13.08%), respectively. The age-specific detection rates of comorbidities showed five unique patterns and also indicated that nephropathy, uremia, and anemia were significant risks for patients under 39 years of age. On the other hand, coronary heart disease, diabetes, arteriosclerosis, hyperlipemia, and cerebral infarction were more likely to occur in older patients. The comorbidity network that we constructed indicated that the top 20 comorbidities of hypertension had strong co-occurrence correlations.

CONCLUSIONS

Hypertension patients can be aware of their risks of comorbidities based on our sex-specific results, age-specific patterns, and the comorbidity network. Our findings provide useful insights into the comorbidity prevention, risk assessment, and early warning for hypertension patients.

Association between body mass index and onset of hypertension in men and women with and without diabetes: a cross-sectional study using national health data from the State of Kuwait in the Arabian Peninsula

OBJECTIVE

Obesity contributes directly to the risk of diabetes and hypertension. Effective management of diabetes is essential to prevent or delay the onset of comorbid hypertension. In this study, we delineate the association body mass index (BMI) has with risk and age at onset of hypertension and explore how this association is modulated by sex and the pre-existing condition of diabetes.

DESIGN

Cross-sectional study using retrospective data.

SETTING

Kuwait Health Network that integrates primary health and hospital laboratory data into a single system.

PARTICIPANTS

We considered 3904 native Kuwaiti comorbid individuals who had the onset of type 2 diabetes prior to that of hypertension, and 1403 native Kuwaiti hypertensive individuals with no incidence of diabetes. These participants have been regularly monitored for BMI, glycated haemoglobin and blood pressure measurements. Mean variance in BMI per individual over the period from registration is seen to be low.

MAIN OUTCOME MEASURES

Association between age at onset of hypertension and BMI (as measured at hypertension diagnosis); HRs for developing hypertension.

RESULTS

Risk of hypertension increases with obesity levels, and is higher in patients with diabetes than in patients without diabetes but of similar obesity levels. Age at onset of hypertension is inversely related to BMI; this relationship is seen to be stronger in men compared to women (slope estimate in men, -0.62 years per unit increase in BMI; in women -0.18) and in individuals (particularly women) with diabetes compared to those without (slope estimate in women, -0.39 vs -0.18, p<0.001; in men -0.66 vs -0.62; p=0.66).

CONCLUSIONS

The observation that the presence of diabetes doubles the slope of inverse relationship between hypertension onset age and BMI in women (while the slope is high in men irrespective of diabetes status) leads to a possible proposition that pre-existing diabetes narrows down sex-specific differences in the impact of obesity on blood pressure.

Reducing the global burden of type 2 diabetes by improving the quality of staple foods: The Global Nutrition and Epidemiologic Transition Initiative

BACKGROUND

The prevalence of type 2 diabetes has been reaching epidemic proportions across the globe, affecting low/middle-income and developed countries. Two main contributors to this burden are the reduction in mortality from infectious conditions and concomitant negative changes in lifestyles, including diet. We aimed to depict the current state of type 2 diabetes worldwide in light of the undergoing epidemiologic and nutrition transition, and to posit that a key factor in the nutrition transition has been the shift in the type and processing of staple foods, from less processed traditional foods to highly refined and processed carbohydrate sources.

DISCUSSION

We showed data from 11 countries participating in the Global Nutrition and Epidemiologic Transition Initiative, a collaborative effort across countries at various stages of the nutrition-epidemiologic transition whose mission is to reduce diabetes by improving the quality of staple foods through culturally-appropriate interventions. We depicted the epidemiologic transition using demographic and mortality data from the World Health Organization, and the nutrition transition using data from the Food and Agriculture Organization food balance sheets. Main staple foods (maize, rice, wheat, pulses, and roots) differed by country, with most countries undergoing a shift in principal contributors to energy consumption from grains in the past 50 years. Notably, rice and wheat products accounted for over half of the contribution to energy consumption from staple grains, while the trends for contribution from roots and pulses generally decreased in most countries. Global Nutrition and Epidemiologic Transition Initiative countries with pilot data have documented key barriers and motivators to increase intake of high-quality staple foods. Global research efforts to identify and promote intake of culturally-acceptable high-quality staple foods could be crucial in preventing diabetes. These efforts may be valuable in shaping future research, community interventions, and public health and nutritional policies.

Leptin in association with common variants of MC3R mediates hypertension

BACKGROUND

Recent research illustrates the role of central melanocortin signaling and leptin in the regulation of arterial blood pressure in animal models. Unraveling the genetic basis of interactions between melanocortin and leptin in humans will provide new insight into the regulation of arterial pressure.

METHOD

Our study population consisted of 332 Kuwaiti natives. Polymorphisms from exons of leptin, MC3R, and MC4R genes were identified by Sanger sequencing. MC3R expression and leptin levels were determined. Linear regression models, adjusted for age, gender, antihypertensive medication, and body mass index, were used to perform statistical association tests.

RESULTS

We observed a significant association between the MC3R missense variant (rs3827103 [Val81 Ile]) and systolic blood pressure (SBP; P = 0.01, β = 4.9). The N-terminus variant (rs3746619 [Thr6→Lys]) is in linkage disequilibrium (r2 = 0.65) with the rs3827103 variant. The AA haplotype of rs3746619-rs3827103 is significantly associated with SBP (P = 0.005, β=5.03). Minor allele frequencies of these two variants in the Kuwaiti population are twice those seen in European population. In individuals who harbor these variants, we found that the plasma leptin levels were positively correlated with SBP and that the expression of MC3R was downregulated. Leptin levels correlated with obesity traits irrespective of the genotypes at the variant positions.

CONCLUSION

An increase in leptin levels is known to increase sympathetic nerve activity that, in turn, increases blood pressure. Thus, it is possible that the observed MC3R variants in association with leptin levels are involved in regulation of blood pressure in humans.

Impact of hypertension on the association of BMI with risk and age at onset of type 2 diabetes mellitus: age- and gender-mediated modifications

AIMS

Given that BMI correlates with risk of Type 2 diabetes mellitus (T2DM), and that hypertension is a common comorbid condition, we hypothesize that hypertension augments significantly the impact of obesity on T2DM onset.

METHODS

We obtained data on T2DM in Kuwaiti natives from Kuwait Health Network Registry. We considered 1339 comorbid individuals with onset of hypertension preceding that of T2DM, and 3496 non-hypertensive individuals but with T2DM. Multiple linear regressions, ANOVA tests, and Cox proportional hazards models were used to quantify the impact of hypertension on correlation of BMI with age at onset and risk of T2DM.

RESULTS

Impact of increasing levels of BMI on age at onset ot T2DM is seen augmented in patients diagnosed with hypertension. We find that the slope of the inverse linear relationship between BMI and onset age of T2DM is much steep in hypertensive patients (-0.69, males and -0.39, females) than in non-hypertensive patients (-0.36, males and -0.17, females). The decline in onset age for an unit increase of BMI is two-fold in males than in females. Upon considering BMI as a categorical variable, we find that while the mean onset age of T2DM in hypertensive patients decreases by as much as 5-12 years in every higher BMI categories, significant decrease in non-hypertensive patients exists only when severely obese. Hazard due to hypertension (against the baseline of non-hypertension and normal weight) increases at least two-fold in every obese category. While males have higher hazard due to hypertension in early adulthood, females have higher hazard in late adulthood.

CONCLUSION

Pre-existing condition of hypertension augments the association of BMI with Type 2 diabetes onset in both males and females. The presented results provide health professionals directives on the extent of weight-loss required to delay onset of Type 2 diabetes in hypertensive versus non-hypertensive patients.

Diabetes in the Middle-East and North Africa: an update

In recent decades, the prevalence of diabetes has risen dramatically in many countries of the International Diabetes Federation's (IDF) Middle-East and North Africa (MENA) Region. This increase has been driven by a range of factors that include rapid economic development and urbanisation; changes in lifestyle that have led to reduced levels of physical activity, increased intake of refined carbohydrates, and a rise in obesity. These changes have resulted in the countries of MENA Region now having among the highest rates of diabetes prevalence in the world. The current prevalence of diabetes in adults in the Region is estimated to be around 9.2%. Of the 34 million people affected by diabetes, nearly 17 million were undiagnosed and therefore at considerable risk of diabetes complications and poor health outcomes. Enhanced research on the epidemiology of diabetes in the MENA Region needs to be combined with more effective primary prevention of diabetes; and early detection and improved management of patients with established diabetes, including an increased focus on self-management and management in primary care and community settings.

Genetic substructure of Kuwaiti population reveals migration history

The State of Kuwait is characterized by settlers from Saudi Arabia, Iran, and other regions of the Arabian Peninsula. The settlements and subsequent admixtures have shaped the genetics of Kuwait. High prevalence of recessive disorders and metabolic syndromes (that increase risk of diabetes) is seen in the peninsula. Understanding the genetic structure of its population will aid studies designed to decipher the underlying causes of these disorders. In this study, we analyzed 572,366 SNP markers from 273 Kuwaiti natives genotyped using the illumina HumanOmniExpress BeadChip. Model-based clustering identified three genetic subgroups with different levels of admixture. A high level of concordance (Mantel test, p=0.0001 for 9999 repeats) was observed between the derived genetic clusters and the surname-based ancestries. Use of Human Genome Diversity Project (HGDP) data to understand admixtures in each group reveals the following: the first group (Kuwait P) is largely of West Asian ancestry, representing Persians with European admixture; the second group (Kuwait S) is predominantly of city-dwelling Saudi Arabian tribe ancestry, and the third group (Kuwait B) includes most of the tent-dwelling Bedouin surnames and is characterized by the presence of 17% African ancestry. Identity by Descent and Homozygosity analyses find Kuwait's population to be heterogeneous (placed between populations that have large amount of ROH and the ones with low ROH) with Kuwait S as highly endogamous, and Kuwait B as diverse. Population differentiation FST estimates place Kuwait P near Asian populations, Kuwait S near Negev Bedouin tribes, and Kuwait B near the Mozabite population. FST distances between the groups are in the range of 0.005 to 0.008; distances of this magnitude are known to cause false positives in disease association studies. Results of analysis for genetic features such as linkage disequilibrium decay patterns conform to Kuwait's geographical location at the nexus of Africa, Europe, and Asia.