Diabetes care in an Australian population: frequency of screening examinations for eye and foot complications of diabetes

Comparison of Endocrinologists' Physical Examination Documentation for In-person vs Video Telehealth Diabetes Visits

Objective

Outpatient diabetes mellitus (DM) care over video telehealth (TH) requires modifications to how endocrinologists complete physical examinations (PEs). But there is little guidance on what PE components to include, which may incur wide variation in practice. We compared endocrinologists' documentation of DM PE components for in-person (IP) vs TH visits.

Methods

Retrospective chart review of 200 notes for new patients with DM from 10 endocrinologists (10 IP and 10 TH visits each) in the Veterans Health Administration between April 1, 2020, and April 1, 2022. Notes were scored from 0 to 10 based on documentation of 10 standard PE components. We compared mean PE scores for IP vs TH across all clinicians using mixed effects models. Independent samples t-tests were used to compare both mean PE scores within clinician and mean scores for each PE component across clinicians for IP vs TH. We described virtual care-specific and foot assessment techniques.

Results

The overall mean (SE) PE score was higher for IP vs TH (8.3 [0.5] vs 2.2 [0.5]; P < .001). Every endocrinologist had higher PE scores for IP vs TH. Every PE component was more commonly documented for IP vs TH. Virtual care-specific techniques and foot assessment were rare.

Conclusions

Our study quantifies the degree to which Pes for TH were attenuated among a sample of endocrinologists, raising a flag that process improvements and research are needed for virtual Pes. Organizational support and training could help increase PE completion via TH. Research should examine reliability and accuracy of virtual PE, its value to clinical decision-making, and its impact on clinical outcomes.

Utilization of nutrition labels and related factors among patients with diabetes in Korea

BACKGROUND/OBJECTIVES

The prevalence of diabetes has continued to increase globally. Changes in eating habits, lack of exercise, increased stress, and aging are major contributors. Glycemic control is the key strategy of diabetes management. The purpose of this study was to analyze the utilization of nutrition labels and related factors among patients with diabetes.

MATERIALS/METHODS

Data from the 7th Korea National Health and Nutrition Examination Survey were used. General, health-related, diabetes-related characteristics from 1,587 adults with diabetes history were included. Nutrition label utilization was assessed with awareness and use of nutrition labels and effects on food choice. For statistical analyses, chi-square test and multiple logistic regression analysis were performed.

RESULTS

The prevalence of awareness, use, and effects of nutrition labels on food choice among diabetic patients were 48.8%, 11.4%, and 9.6%, respectively. High monthly income, walking frequency, family history of diabetes, younger age at diagnosis, and shorter duration of diabetes were associated with higher nutrition label awareness. Nutrition label use and effect on food choice were higher in women, those with high monthly income, those diagnosed at younger than 45 yrs, those with diabetes for less than 10 yrs, those with meal therapy, or patients who had undergone a fundus examination.

CONCLUSIONS

Nutrition label utilization status was low in Korean patients with diabetes. Strategies are needed to promote nutrition label use as a diet management tool for patients with diabetes.

Diabetic Macular Oedema Guidelines: An Australian Perspective

The number of people living with diabetes is expected to rise to 578 million by 2030 and to 700 million by 2045, exacting a severe socioeconomic burden on healthcare systems around the globe. This is also reflected in the increasing numbers of people with ocular complications of diabetes (namely, diabetic macular oedema (DMO) and diabetic retinopathy (DR)). In one study examining the global prevalence of DR, 35% of people with diabetes had some form of DR, 7% had PDR, 7% had DMO, and 10% were affected by these vision-threatening stages. In many regions of the world (Australia included), DR is one of the top three leading causes of vision loss amongst working age adults (20-74 years). In the management of DMO, the landmark ETDRS study demonstrated that moderate visual loss, defined as doubling of the visual angle, can be reduced by 50% or more by focal/grid laser photocoagulation. However, over the last 20 years, antivascular endothelial growth factor (VEGF) and corticosteroid therapies have emerged as alternative options for the management of DMO and provided patients with choices that have higher chances of improving vision than laser alone. In Australia, since the 2008 NHMRC guidelines, there have been significant developments in both the treatment options and treatment schedules for DMO. This working group was therefore assembled to review and address the current management options available in Australia.

Temporal trends in non-traumatic lower extremity amputations (LEAs) and their association with 12-month mortality in people with diabetes, 2004-2016

AIMS

To assess trends in hospital admissions for non-traumatic lower extremity amputations (LEAs) and for mortality following LEAs in adult patients with type 1 diabetes (T1DM) or type 2 diabetes (T2DM) admitted to hospitals in Victoria, Australia during 2004-2016.

METHODS

Using hospital discharge data, we calculated age- and sex- adjusted admission rates for incident cases of any LEA, minor LEAs, major LEAs and 12-month mortality following any LEAs for patients according to diabetes type. Joinpoint regression analysis was used to identify changes in linear trends that were described as average annual percentage change (AAPC).

RESULTS

Significant declines in rates of admission for any LEA (AAPC -4.9), minor LEAs (-3.0 %) and major LEAs (AAPC -11.5 %) were seen for patients with T2DM. Overall, admission rates for any LEA did not significantly change for patients with T1DM during 2004 and 2016, however, we detected a significant rise in admissions for any LEAs (AAPC +5.1) in female patients with T1DM. This increase was most prominent in younger (<60 years) patients undergoing minor LEAs. During 2009-2016, younger patients with type 1 DM, regardless of sex, also experienced significant increases in admissions for any LEA (AAPC +14) and major LEAs (AAPC +15). Mortality associated with LEAs in T2DM declines, with a 12-month mortality rate of 6.3 %) associated with LEAs in T2M decline (AAPC -4.2 %) whereas rates for T1DM remained stable (1.9 %) during 2004-2016.

CONCLUSIONS

There were significant differences in LEA hospital admission trends by type of diabetes, age and sex. The decline in LEAs and its associated mortality is welcome news for patients with T2DM. However, reasons for the increase in LEAs in younger patients with T1DM remain to be determined.

Knowledge and Awareness of Diabetes and Diabetic Retinopathy among Patients Seeking Eye Care Services in Madang Province, Papua New Guinea

Purpose. To assess the knowledge and awareness of diabetes and diabetic retinopathy among ophthalmic patients in Madang. Materials and Methods. This was a hospital-based study conducted at Madang Provincial Hospital Eye Clinic in Papua New Guinea. The study included all patients who visited the facility during the period of the study. A structured questionnaire was used to collect data on the patients’ demographics and their knowledge and awareness about diabetes and diabetic retinopathy. Results. A total of 203 (97.6%) patients consented and participated in the study out of 208 patients who were approached. The age of participants ranged from 19 to 78 years with a median (IQR) of 41 (53–29) years. 107 (52.7%) were female participants. A majority of the participants (62.6%) had at least secondary education. A few of the participants (3.9%) had known diabetes, and 134 (66%) had no relatives or friends with diabetes. A total of 145 (71.4%) participants knew that diabetes can affect the eye. Most of the participants (93.6%) checked their eyes only when their vision was affected, 161 (79.3%) agreed that regular eye checks are necessary, and more than half (54.2%) knew that diabetes can lead to blindness. Age, gender, level of education, and whether a participant or participant’s friends and relatives had been diagnosed with diabetes were significantly associated with the knowledge and awareness of participants about diabetes and diabetic retinopathy. Conclusion. A majority of the participants had good knowledge of diabetes and diabetic retinopathy. Health education and promotion will also help increase the awareness of diabetes and diabetic retinopathy in the country.

Screening, diagnosis and management of diabetic sensorimotor polyneuropathy in clinical practice: International expert consensus recommendations

Diabetic sensorimotor polyneuropathy (DSPN) affects around one third of people with diabetes and accounts for considerable morbidity, increased risk of mortality, reduced quality of life, and increased health care costs resulting particularly from neuropathic pain and foot ulcers. Painful DSPN is encountered in 13-26% of diabetes patients, while up to 50% of patients with DSPN may be asymptomatic. Unfortunately, DSPN still remains inadequately diagnosed and treated. Herein we provide international expert consensus recommendations and algorithms for screening, diagnosis, and treatment of DSPN in clinical practice derived from a Delphi process. Typical neuropathic symptoms include pain, paresthesias, and numbness particularly in the feet and calves. Clinical diagnosis of DSPN is based on neuropathic symptoms and signs (deficits). Management of DSPN includes three cornerstones: (1) lifestyle modification, optimal diabetes treatment aimed at near-normoglycemia, and multifactorial cardiovascular risk intervention, (2) pathogenetically oriented pharmacotherapy (e.g. α-lipoic acid and benfotiamine), and (3) symptomatic treatment of neuropathic pain including analgesic pharmacotherapy (antidepressants, anticonvulsants, opioids, capsaicin 8% patch and combinations, if required) and non-pharmacological options. Considering the individual risk profile, pain management should not only aim at pain relief, but also allow for improvement in quality of sleep, functionality, and general quality of life.

Geographic and Ethnic Inequalities in Diabetes-Related Amputations

Individuals with diabetes mellitus are at increasing risk for major lower-extremity amputations (LEAs). Poor quality of life and remarkable disabilities are associated with LEAs, determining a high economic burden for the healthcare systems. Reducing LEAs is therefore a primary marker of quality of care of the diabetic foot. At global level, between-countries comparisons of LEAs rates are basically hampered by differences in criteria used for data collection and analysis among studies. Significant variability in amputation rates exists between geographic areas, and also within specific regions of a country. Overall 5-year mortality rate after major amputations is reported to vary substantially across countries, from 50 to 80%. The odds of LEAs are substantially higher for Black, Native American and Hispanic ethnicities compared with White groups, with similar figures observed in the economically disadvantaged areas compared to more developed ones. Such discrepancies may reflect differences in diabetes prevalence as well as in financial resources, health-care system organization and management strategies of patients with diabetic foot ulcers. Looking at the experience of countries with lower rates of hospitalization and LEAs worldwide, a number of initiatives should be introduced to overcome these barriers. These include education and prevention programs for the early detection of diabetic foot at primary care levels, and the multidisciplinary team approach with established expertise in the treatment of the more advanced stage of disease. Such a coordinated system of support for both patients and physicians is highly required to reduce inequalities in the odd of diabetes-related amputations worldwide.

Barriers and facilitators to diabetic retinopathy screening within Australian primary care

Background

Despite recent incentives through Medicare (Australia’s universal health insurance scheme) to increase retinal screening rates in primary care, comprehensive diabetic retinopathy (DR) screening has not been reached in Australia. The current study aimed to identify key factors affecting the delivery of diabetic retinopathy (DR) screening in Australian general practices.

Methods

A descriptive qualitative study involving in-depth interviews was carried out from November 2019 to March 2020. Using purposive snowballing sampling, 15 general practitioners (GPs) were recruited from urban and rural general practices in New South Wales and Western Australia. A semi-structured interview guide was used to collect data from participants. All interviews were conducted over the phone by one facilitator, and each interview lasted up to 45 min. The Socio-Ecological Model was used to inform the content of the interview topic guides and subsequent data analysis. Recorded data were transcribed verbatim, and thematic analysis was conducted to identify and classify recurrent themes.

Results

Of 15 GPs interviewed, 13 were male doctors, and the mean age was 54.7 ± 15.5 years. Seven participants were practising in urban areas, while eight were practising in regional or remote areas. All participants had access to a direct ophthalmoscope, but none owned retinal cameras. None of the participants reported performing DR screening. Only three participants were aware of the Medicare Benefits Schedule (MBS) items 12,325 and 12,326 that allow GPs to bill for retinal screening. Seven themes, a combination of facilitators and barriers, emerged from interviews with the GPs. Despite the strong belief in their role in managing chronic diseases, barriers such as costs of retinal cameras, time constraints, lack of skills to make DR diagnosis, and unawareness of Medicare incentives for non-mydriatic retinal photography made it difficult to conduct DR screening in general practice. However, several enabling strategies to deliver DR screening within primary care include increasing GPs’ access to continuing professional development, subsidising the cost of retinal cameras, and the need for a champion ace to take the responsibility of retinal photography.

Conclusion

This study identified essential areas at the system level that require addressing to promote the broader implementation of DR screening, in particular, a nationwide awareness campaign to maximise the use of MBS items, improve GPs’ competency, and subsidise costs of the retinal cameras for small and rural general practices.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12875-021-01586-7.

Predicting major adverse limb events in individuals with type 2 diabetes: Insights from the EXSCEL trial

AIMS

Although models exist to predict amputation among people with type 2 diabetes with foot ulceration or infection, we aimed to develop a prediction model for a broader range of major adverse limb events (MALE)-including gangrene, revascularization and amputation-among individuals with type 2 diabetes.

METHODS

In a post-hoc analysis of data from the Exenatide Study of Cardiovascular Event Lowering (EXSCEL) trial, we compared participants who experienced MALE with those who did not. A multivariable model was constructed and translated into a risk score.

RESULTS

Among the 14,752 participants with type 2 diabetes in EXSCEL, 3.6% experienced MALE. Characteristics associated with increased risk of MALE were peripheral artery disease (PAD) (HR_adj 4.83, 95% CI: 3.94-5.92), prior foot ulcer (HR_adj 2.16, 95% CI: 1.63-2.87), prior amputation (HR_adj 2.00, 95% CI: 1.53-2.64), current smoking (HR_adj 2.00, 95% CI: 1.54-2.61), insulin use (HR_adj 1.86, 95% CI: 1.52-2.27), coronary artery disease (HR_adj 1.67, 95% CI: 1.38-2.03) and male sex (HR_adj 1.64, 95% CI: 1.31-2.06). Cerebrovascular disease, former smoking, age, glycated haemoglobin, race and neuropathy were also associated significantly with MALE after adjustment. A risk score ranging from 6 to 96 points was constructed, with a C-statistic of 0.822 (95% CI: 0.803-0.841).

CONCLUSIONS

The majority of MALE occurred among participants with PAD, but participants without a history of PAD also experienced MALE. A risk score with good performance was generated. Although it requires validation in an external dataset, this risk score may be valuable in identifying patients requiring more intensive care and closer follow-up.

Biofilms in Diabetic Foot Ulcers: Impact, Risk Factors and Control Strategies

Diabetic foot ulcers (DFUs) are a serious complication from diabetes mellitus, with a huge economic, social and psychological impact on the patients' life. One of the main reasons why DFUs are so difficult to heal is related to the presence of biofilms. Biofilms promote wound inflammation and a remarkable lack of response to host defences/treatment options, which can lead to disease progression and chronicity. In fact, appropriate treatment for the elimination of these microbial communities can prevent the disease evolution and, in some cases, even avoid more serious outcomes, such as amputation or death. However, the detection of biofilm-associated DFUs is difficult due to the lack of methods for diagnostics in clinical settings. In this review, the current knowledge on the involvement of biofilms in DFUs is discussed, as well as how the surrounding environment influences biofilm formation and regulation, along with its clinical implications. A special focus is also given to biofilm-associated DFU diagnosis and therapeutic strategies. An overview on promising alternative therapeutics is provided and an algorithm considering biofilm detection and treatment is proposed.

Knowledge about diabetic retinopathy, eye check-up practice and associated factors among adult patients with diabetes mellitus attending at debark hospital, Northwest Ethiopia

Background

Routine eye examination plays a vital role in detecting diabetic retinopathy in its earliest stage before the onset of blindness. Patients’ knowledge about the nature and the consequences of diabetic retinopathy and routine eye checkup helps for timely identification and early treatment. However, there is limited evidence on knowledge of patients with diabetes mellitus on diabetic retinopathy and their eye check-up practices in Ethiopia.

The aim of this study was to assess knowledge about diabetic retinopathy, eye check-up practice and associated factors of diabetic retinopathy among adult diabetic patients at Debark hospital, Northwest Ethiopia.

Methods

Institution based cross-sectional study was conducted at Debark hospital, Northwest Ethiopia, from April 20/2018- May 20/2018. A pretested interviewer administered structured questionnaire was used to collect data among 230 diabetic patients aged 18 years and above. Data were entered in to Epi Info version 7 and exported to SPSS version 20 for analysis. Bivariable and multivariable binary logistic regression analyses were done. Odds ratio with 95% confidence level was determined and variables with p–value of < 0.05 were considered as statistically significant.

Result

Out of 238 sample 230 were participated, among this, 119 (51.7%) were males. The mean age of the respondents was 49 (SD ±17.6) years. One hundred nine (47.4%) participants had good knowledge and 91 (39.6%) had good eye check-up practice. Urban residence [AOR = 2.65;95% CI: 1.16–6.07)]), monthly income of 3501–8000 birr [AOR = 4.54;(1.31–15.7)], type II diabetes mellitus [AOR = 3.9;(1.6–9.6)], duration of diabetes (6–12 years [AOR = 4.4;(1.4–13.5)]), history of eye disease [AOR = 5.5;(2.3–13.0)] were associated with good knowledge. Similarly, longer duration of diabetes (13–25 years [AOR = 3.77; (1.05–13.5)]) and history of eye disease [AOR = 2.47; (1.09–5.62)] were associated with good eye check-up practice.

Conclusion

The proportion of good knowledge about diabetic retinopathy among diabetic patients at Debark hospital was fair (47.4%) and good eye check-up practice (eye examination at least once in the past year) was low (39.6%). Longer duration of diabetes and history of eye disease were identified as positive factors for good knowledge and eye check-up practice. Knowledge and regular eye check-up practice needs to be enhanced through provision of appropriate health education.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12886-020-01730-4.

Adherence to eye examination guidelines among individuals with diabetes: An analysis of linked health data

IMPORTANCE

Screening for diabetic retinopathy for early detection and treatment can prevent vision loss.

BACKGROUND

We aimed to assess rates of eye examination of people with diabetes, adherence with national guidelines and investigate characteristics of those who do not adhere.

DESIGN

We used data from the 45 and Up Study, a cohort study of 267 153 randomly selected residents aged ≥45 years from New South Wales, Australia. Individual survey data collected in 2006 to 2009 were linked to corresponding national Medicare Benefits Schedule claims data for 2006 to 2016.

PARTICIPANTS

The study sample included 24 832 participants who reported having diabetes and at least 5 years of observation.

METHODS

Claims for visits to optometrists or ophthalmologists were assessed to estimate rates of eye examination. Poisson regression models were used to investigate factors associated with non-adherence.

MAIN OUTCOME MEASURE

Participants were classified as adherent if the average time between eye care claims was consistent with national guideline of having an eye exam every 2 years.

RESULTS

Of 50% to 75% people with diabetes met the biennial eye examination guidelines and only 21% to 28% with diabetes duration ≥10 years were adherent to the annual eye examination guideline. Characteristics associated with greatest (~1.3-fold) risk of non-adherence were smoking, age <60 years and higher income.

CONCLUSIONS AND RELEVANCE

There is a clear need to improve rates of adherence to eye examination guidelines among people with diabetes to reduce the personal and societal burden of diabetic retinopathy.

Influence of Diabetic Distal Symmetric Polyneuropathy on the Performance of the Musculoskeletal System of Lower Leg and Foot

Introduction:

Complications on the lower extremities are a major cause of morbidity, disability, emotional and physical suffering in people with diabetes. Diabetic neuropathy (DN) is the most frequent complication of both types of diabetes. Lack of performance of the musculoskeletal system of lower leg and foot can results in high focal plantar pressures with increased ulceration risk in patients with neuropathy.

Aim:

To determine the impact of the severity of distal symmetric polyneuropathy (DSPN) on the foot and ankle muscle strength and the range of motion (ROM) at ankle joint (AJ), subtalar joint (SJ) and first metatarsophalangeal joint (I MTP).

Methods:

A cross-sectional study was conducted among 100 diabetic patients. The level of DSPN was assessed using the Neuropathy Disability Score. Function of ten foot and ankle muscles has been evaluated by manual muscle testing. Muscle strength was scored by semiquantitative grading system used in the Michigan Diabetic Neuropathy Score. ROM at the AJ, SJ and I MTP was measured with goniometer.

Results:

The average patients age was 61.91±10.74 and diabetes duration 12.25±8.60 years. DSPN was present in 45% of patients. The average strength of foot and ankle muscles expressed by muscle score was 11.56±5.08. The average ROM at AJ was 47.85°, at SJ 35.10° and at I MTP 72.70°. Correlations between the severity of the DSPN and muscle function, ROM at AJ, SJ and I MTP were statistically significant. ROM at SJ and I MTP declines significantly with progression of neuropathy but not significant at AJ.

Conclusion:

The severity of DSPN is significantly associated with foot and ankle muscle weakness and ROM at the SJ and the I MTP, but not significantly with the ROM at the AJ.

Factors associated with retinal screening among patients with diabetes in Taiwan

PURPOSE

The purpose of this study is to explore the factors associated with having a diabetic retinopathy exam (DRE) during the past 2 years among patients with diabetes.

METHODS

Patients visiting the eye clinic at Shin-Kong Memorial Hospital in Taipei were enrolled in this study from January to June 2009. A total of 313 patients participated in this study. Excluding patients with missing responses for more than three questions (38) yielded a final sample of 275 participants. Chi-square and Mann-Whitney U-tests were used for bivariate analysis. Multivariable logistic regression examined factors associated with having a DRE controlling for demographic and health factors.

RESULTS

Although 83% of participants said that their physician suggested DRE, only 60% were screened during the past 2 years. In response to the question about why patients did not seek a DRE exam, 43.2% reported that they did not know having this exam was necessary. In adjusted results, receiving information about the relationship between diabetes and retinopathy from medical staff and believing that diabetes could damage the vision were associated with having a DRE in the past 2 years (both P < 0.05).

CONCLUSIONS

Although most patients indicated that their physician suggested the need for eye care, a substantial percentage of patients with diabetes were not aware of the need for a regular DRE. Information about the relationship between diabetes and retinopathy and concerns about damage to vision were associated with greater likelihood of seeking a DRE. These factors should be considered to promote DR screening.

What works to increase attendance for diabetic retinopathy screening? An evidence synthesis and economic analysis

BACKGROUND

Diabetic retinopathy screening (DRS) is effective but uptake is suboptimal.

OBJECTIVES

To determine the effectiveness of quality improvement (QI) interventions for DRS attendance; describe the interventions in terms of QI components and behaviour change techniques (BCTs); identify theoretical determinants of attendance; investigate coherence between BCTs identified in interventions and determinants of attendance; and determine the cost-effectiveness of QI components and BCTs for improving DRS.

DATA SOURCES AND REVIEW METHODS

Phase 1 - systematic review of randomised controlled trials (RCTs) evaluating interventions to increase DRS attendance (The Cochrane Library, MEDLINE, EMBASE and trials registers to February 2017) and coding intervention content to classify QI components and BCTs. Phase 2 - review of studies reporting factors influencing attendance, coded to theoretical domains (MEDLINE, EMBASE, PsycINFO and sources of grey literature to March 2016). Phase 3 - mapping BCTs (phase 1) to theoretical domains (phase 2) and an economic evaluation to determine the cost-effectiveness of BCTs or QI components.

RESULTS

Phase 1 - 7277 studies were screened, of which 66 RCTs were included in the review. Interventions were multifaceted and targeted patients, health-care professionals (HCPs) or health-care systems. Overall, interventions increased DRS attendance by 12% [risk difference (RD) 0.12, 95% confidence interval (CI) 0.10 to 0.14] compared with usual care, with substantial heterogeneity in effect size. Both DRS-targeted and general QI interventions were effective, particularly when baseline attendance levels were low. All commonly used QI components and BCTs were associated with significant improvements, particularly in those with poor attendance. Higher effect estimates were observed in subgroup analyses for the BCTs of 'goal setting (outcome, i.e. consequences)' (RD 0.26, 95% CI 0.16 to 0.36) and 'feedback on outcomes (consequences) of behaviour' (RD 0.22, 95% CI 0.15 to 0.29) in interventions targeting patients and of 'restructuring the social environment' (RD 0.19, 95% CI 0.12 to 0.26) and 'credible source' (RD 0.16, 95% CI 0.08 to 0.24) in interventions targeting HCPs. Phase 2 - 3457 studies were screened, of which 65 non-randomised studies were included in the review. The following theoretical domains were likely to influence attendance: 'environmental context and resources', 'social influences', 'knowledge', 'memory, attention and decision processes', 'beliefs about consequences' and 'emotions'. Phase 3 - mapping identified that interventions included BCTs targeting important barriers to/enablers of DRS attendance. However, BCTs targeting emotional factors around DRS were under-represented. QI components were unlikely to be cost-effective whereas BCTs with a high probability (≥ 0.975) of being cost-effective at a societal willingness-to-pay threshold of £20,000 per QALY included 'goal-setting (outcome)', 'feedback on outcomes of behaviour', 'social support' and 'information about health consequences'. Cost-effectiveness increased when DRS attendance was lower and with longer screening intervals.

LIMITATIONS

Quality improvement/BCT coding was dependent on descriptions of intervention content in primary sources; methods for the identification of coherence of BCTs require improvement.

CONCLUSIONS

Randomised controlled trial evidence indicates that QI interventions incorporating specific BCT components are associated with meaningful improvements in DRS attendance compared with usual care. Interventions generally used appropriate BCTs that target important barriers to screening attendance, with a high probability of being cost-effective. Research is needed to optimise BCTs or BCT combinations that seek to improve DRS attendance at an acceptable cost. BCTs targeting emotional factors represent a missed opportunity to improve attendance and should be tested in future studies.

STUDY REGISTRATION

This study is registered as PROSPERO CRD42016044157 and PROSPERO CRD42016032990.

FUNDING

The National Institute for Health Research Health Technology Assessment programme.

Prevalence and determinants of comprehensive eye care in a group of patients with diabetes: a cross-sectional study in a sub-Saharan African setting

Objectives

We aimed to investigate the determinants of comprehensive eye examination in diabetes patients. We conducted a cross-sectional study at the eye department of the Douala General Hospital. Adult patients with diabetes were consecutively interviewed on the history of their diabetes. Main outcomes were a first ever comprehensive eye examination including fundoscopy, and diagnosis-to-fundoscopy time.

Results

52 patients were included of whom 59.6% were males with a mean age of 55.9 ± 10.9 years. 51.9% have had counselling on the risk of visual impairment and blindness due to diabetes, and 61.5% [95% CI 47–74.7] have had a comprehensive eye examination. Of those with a first ever fundoscopy, only 21.9% had the test performed within 1 year of diagnosis. Thus, after an average of 10 years of the diagnosis of diabetes, 13.5% (7/52) of patients have had a comprehensive eye examination within 1 year of diagnosis. Only dose with duration of diabetes of more than 10 years were 7–24 times more likely to have a comprehensive eye examination. In summary, patients with diabetes in this low-income setting do not receive a comprehensive eye care as recommended. Most patients will get an eye examination at least 10 years after the diagnosis of diabetes.

Electronic supplementary material

The online version of this article (10.1186/s13104-018-3265-1) contains supplementary material, which is available to authorized users.

Barriers to and enablers of diabetic retinopathy screening attendance: a systematic review of published and grey literature

AIMS

To identify and synthesize studies reporting modifiable barriers/enablers associated with retinopathy screening attendance in people with Type 1 or Type 2 diabetes, and to identify those most likely to influence attendance.

METHODS

We searched MEDLINE, EMBASE, PsycINFO, Cochrane Library and the 'grey literature' for quantitative and qualitative studies to February 2017. Data (i.e. participant quotations, interpretive summaries, survey results) reporting barriers/enablers were extracted and deductively coded into domains from the Theoretical Domains Framework; with domains representing categories of theoretical barriers/enablers proposed to mediate behaviour change. Inductive thematic analysis was conducted within domains to describe the role each domain plays in facilitating or hindering screening attendance. Domains that were more frequently coded and for which more themes were generated were judged more likely to influence attendance.

RESULTS

Sixty-nine primary studies were included. We identified six theoretical domains ['environmental context and resources' (75% of included studies), 'social influences' (51%), 'knowledge' (51%), 'memory, attention, decision processes' (50%), 'beliefs about consequences' (38%) and 'emotions' (33%)] as the key mediators of diabetic retinopathy screening attendance. Examples of barriers populating these domains included inaccurate diabetic registers and confusion between routine eye care and retinopathy screening. Recommendations by healthcare professionals and community-level media coverage acted as enablers.

CONCLUSIONS

Across a variety of contexts, we found common barriers to and enablers of retinopathy screening that could be targeted in interventions aiming to increase screening attendance.

A cluster-randomized trial to estimate the effect of mobile screening and treatment feedback on HbA1c and diabetes-related complications in Tshwane primary health care clinics, South Africa

AIM AND OBJECTIVES

Our study had two primary objectives. The first was to evaluate the effect of an expert review with an individualised patient management plan on change in HbA1c. The second was to determine whether a mobile screening unit would increase the proportion of patients screened for glycaemic and lipid control, as well as diabetic complications as compared to the standard guideline-driven clinic care.

METHODS

We conducted a cluster-randomised trial and enrolled 599 diabetic patients from twelve primary health care clinics in the Tshwane district of South Africa. The study was carried out in three phases: Phase 1 was a historical twelve-month record review to determine baseline characteristics; Phase 2 was the provision of the intervention (active screening for metabolic control and diabetes-related complications and health education targeting health care workers and diabetic patients) compared to the control group (routine care with similar education given to health care workers and diabetic patients) with a follow-up which included a clinical assessment. Phase 3 was a repeat of the record review to assess post-intervention changes following the proposed individualised patient management plan in the intervention clinics, and self-initiated by the health care professionals in the control clinics, based on training and results-sharing.

RESULTS

No significant changes in the HbA1c between the intervention and control clinics after one year were observed. The mean Hba1c changed from 8.68 to 8.53% (intervention) and from 8.95 to 8.76% (control) (p=0.92). Significant differences were observed in screening for diabetic complications when active screening was done by a dedicated team. The increase observed was more than 60% in all indicators monitored. Significant changes were also seen in the control clinics for two measured outcome variables (HbA1c test ordered from 15% to 25% (p=0.02) and serum-creatinine test ordered increased from 11% to 19% (p<0.001)). There was no significant difference in the proportion of actions taken, or not taken, between the control and interventions arms (p=0.83). The proposed changed patient management plans by the expert review team were implemented in only 29% of patients in the intervention arm.

CONCLUSIONS

A comprehensive programme that integrates clinical evaluations, active screening and an individualised patient management plan did not lead to significant improvement in the HbA1c levels. However, screening for glycaemic and lipid control, as well as diabetic complications, improved dramatically with a dedicated team. The lower than expected rate of uptake of the specialists-proposed patient management, with the resulting non-significant change in glycaemic control, needs further investigation.

What factors influence uptake of retinal screening among young adults with type 2 diabetes? A qualitative study informed by the theoretical domains framework

AIMS

Young adults with type 2 diabetes (T2D, 18-39years) face increased risk of vision loss from diabetic retinopathy (DR). Retinal screening is essential to detect DR, yet screening rates for this group are low and little is known about the underlying factors influencing this important behavior. Using the theoretical domains framework (TDF) to guide data collection and analysis, we explored screening barriers and facilitator, contrasting them with a comparator group of older adults with T2D (40+ years).

METHODS

Thirty semi-structured telephone interviews (10 younger, 20 older adults) were conducted. Data were coded into TDF domains with salience identified by "frequency" of reference. Screening facilitators and barriers were systematically compared between groups.

RESULTS

Although many screening facilitators and barriers were shared by younger and older adults, additional factors highly relevant to the former included: social comparison with others ('social influences'); concern for the impact on the family unit, unrealistic optimism and perceived invulnerability ('beliefs about consequences'); lack of time and financial resources ('environmental context and resources'), and DR misconceptions ('knowledge').

CONCLUSIONS

This study demonstrated that young adult retinal screening behavior was influenced by additional social cognitive factors compared to older adults, providing a first-step evidence base for clinicians and other health professionals, and potential targets for future eye health and retinal screening interventions.

Adherence to diabetic eye examination guidelines in Australia: the National Eye Health Survey

OBJECTIVE

To determine adherence to NHMRC eye examination guidelines for Indigenous and non-Indigenous Australian people with diabetes.

DESIGN

Cross-sectional survey using multistage, random cluster sampling.

SETTING

Thirty randomly selected geographic sites in the five mainland Australian states and the Northern Territory, stratified by remoteness.

PARTICIPANTS

1738 Indigenous Australians aged 40-92 years and 3098 non-Indigenous Australians aged 50-98 years were recruited and examined between March 2015 and April 2016 according to a standardised protocol that included a questionnaire (administered by an interviewer) and a series of standard eye tests.

MAIN OUTCOME MEASURES

Adherence rates to NHMRC eye examination guidelines; factors influencing adherence.

RESULTS

Adherence to screening recommendations was significantly greater among non-Indigenous Australians (biennial screening; 77.5%) than Indigenous Australians (annual screening; 52.7%; P < 0.001). Greater adherence by non-Indigenous Australians was associated with longer duration of diabetes (adjusted odds ratio [aOR], 1.19 per 5 years; P = 0.018), while increasing age was associated with poorer adherence in non-Indigenous Australians (aOR, 0.70 per decade; P = 0.011). For Indigenous Australians, residing in inner regional areas (aOR, 1.66; P = 0.007) and being male (aOR, 1.46; P = 0.018) were significant factors positively associated with adherence.

CONCLUSIONS

More than three-quarters of non-Indigenous Australians with diabetes and more than half of Indigenous Australians with diabetes adhere to the NHMRC eye examination guidelines. The discrepancy between the adherence rates may point to gaps in the provision or uptake of screening services in Indigenous communities, or a lack of awareness of the guidelines. A carefully integrated diabetic retinopathy screening service is needed, particularly in remote areas, to improve adherence rates.

Global epidemiology of diabetic foot ulceration: a systematic review and meta-analysis †

Diabetic foot is a severe public health issue, yet rare studies investigated its global epidemiology. Here we performed a systematic review and meta-analysis through searching PubMed, EMBASE, ISI Web of science, and Cochrane database. We found that that global diabetic foot ulcer prevalence was 6.3% (95%CI: 5.4-7.3%), which was higher in males (4.5%, 95%CI: 3.7-5.2%) than in females (3.5%, 95%CI: 2.8-4.2%), and higher in type 2 diabetic patients (6.4%, 95%CI: 4.6-8.1%) than in type 1 diabetics (5.5%, 95%CI: 3.2-7.7%). North America had the highest prevalence (13.0%, 95%CI: 10.0-15.9%), Oceania had the lowest (3.0%, 95% CI: 0.9-5.0%), and the prevalence in Asia, Europe, and Africa were 5.5% (95%CI: 4.6-6.4%), 5.1% (95%CI: 4.1-6.0%), and 7.2% (95%CI: 5.1-9.3%), respectively. Australia has the lowest (1.5%, 95%CI: 0.7-2.4%) and Belgium has the highest prevalence (16.6%, 95%CI: 10.7-22.4%), followed by Canada (14.8%, 95%CI: 9.4-20.1%) and USA (13.0%, 95%CI: 8.3-17.7%). The patients with diabetic foot ulcer were older, had a lower body mass index, longer diabetic duration, and had more hypertension, diabetic retinopathy, and smoking history than patients without diabetic foot ulceration. Our results provide suggestions for policy makers in deciding preventing strategy of diabetic foot ulceration in the future. Key messages Global prevalence of diabetic foot is 6.3% (95%CI: 5.4-7.3%), and the prevalence in North America, Asia, Europe, Africa and Oceania was 13.0% (95%CI: 10.0-15.9%), 5.5% (95%CI: 4.6-6.4%), 5.1% (95%CI: 4.1-6.0%), 7.2% (95%CI: 5.1-9.3%), and 3.0% (95% CI: 0.9-5.0%). Diabetic foot was more prevalent in males than in females, and more prevalent in type 2 diabetic foot patients than in type 1 diabetic foot patients. The patients with diabetic foot were older, had a lower body mass index, longer diabetic duration, and had more hypertension, diabetic retinopathy, and smoking history than patients without diabetic foot.

Evaluating a health video on diabetic retinopathy

Issue addressed Indigenous Australians are 14 times more likely than non-Indigenous Australians to develop diabetic retinopathy (DR). Blindness can be prevented in 98% of cases if DR is identified and treated early. While the National Health and Medical Research Council recommend annual screening for Indigenous Australians, screening attendance rates remain low. The objective of this study was to evaluate whether a targeted health promotion intervention improved patient compliance and screening rates. Methods Bad Sugars, Bad Eyes - a culturally appropriate video targeting DR awareness and the importance of screening among Indigenous Australians - was developed at the Lions Eye Institute, Western Australia. The study used a patient questionnaire pre and post viewing of the video, as well as semi-structured interviews with Aboriginal Health Workers, to explore the influence the resource had on patient knowledge and attitudes. Eighty-four participants, currently involved in DR screening programs, were recruited from Aboriginal Medical Services (AMS) and Aboriginal Community Controlled Health Services (ACCHS). Results The video was found to increase patient knowledge about key DR issues as well as alter patient attitudes identified as potential barriers to screening. The areas most affected by the video resource were knowledge of recommended screening intervals, the severity of potential visual complications if DR is left undiagnosed and untreated and that screening is needed even when asymptomatic. Aboriginal Health Workers positively evaluated the video, all rating it as 'very' culturally appropriate, understandable and relatable. Conclusion The findings of this study suggest that Indigenous DR screening attendance rates could be increased through the expanded use of this video. So what? Indigenous DR screening attendance rates remain low, despite annual recommendations by the National Health and Medical Research Council. This gap needs to be addressed.

Trends of barriers to eye care among adults with diagnosed diabetes in Germany, 1997-2012

BACKGROUND AND AIMS

To study trends of barriers to receiving recommended eye care among subjects with diabetes aged 20-81 years in northeast Germany.

METHODS AND RESULTS

We analyzed population-based data from two repeated cross-sectional surveys conducted in 1997-2001 and 2008-2012 (Ns of 4308 and 4402). Andersen's Behavioral Model of Health Services Utilization was used to identify individual-level demographic, financial and health-related barriers to annual eye-care utilization in subjects with a self-reported physician's diabetes and to examine population trends in these barriers. The prevalence of diabetes increased from 6.5% to 11.4%. The prevalence of annual eye-care utilization among persons with diabetes decreased from 69.4% to 56.0% (adjusted relative risk = 0.77, p < 0.001). The decline of eye care utilization over the past decade in eye-care use was more pronounced in groups at risk for diabetes-related complications (i.e., lower socio-economic status, >5 years since diagnosis of diabetes, poor glycemic control, obesity, smoking, lack of physical activity, co-existing diseases). We identified relevant predictors of missed annual eye-care use among diabetics.

CONCLUSION

The increase of diabetes prevalence and downward trend of eye-care visits at the recommended level call for development, implementation and evaluation of continued efforts to improve access to eye specialists, particularly among those with poor diabetic control, co-existing diabetic complications, and comorbidities.

A clinical screening score for diabetic polyneuropathy: KORA F4 and AusDiab studies

AIMS

Since screening for distal sensorimotor polyneuropathy (DSPN) in individuals with diabetes is being underused, our aim was to develop a clinical screening score for identifying individuals with DSPN.

METHODS

All participants with type 2 diabetes and aged 61-82 years from the German population-based KORA F4 Study (n=177) and the Australian population-based AusDiab Study (n=244) were combined into one study sample. Risk indicators of DSPN were identified and entered into a stepwise model-selection procedure, constructing two consecutive scores with increasing complexity (a base and clinical model).

RESULTS

The prevalence of DSPN was 18.2% (95% confidence interval (CI): 14.7-22.3). The base model comprised age (years), height (cm), weight (kg), pain or discomfort in the feet and/or legs (yes/no), and duration of diabetes (years), yielding an area under the receiver operating characteristics curve (AUC) of 0.80 (95% CI: 0.76-0.85). The clinical model additionally included diastolic blood pressure (mmHg) and serum creatinine levels (mmol/l). The AUC increased only marginally to 0.82 (0.77-0.87) (p for AUC comparison=0.188). The internal validation of the scores produced similar AUCs.

CONCLUSIONS

The screening scores developed in this study are a simple tool to differentiate between a high and low likelihood of having DSPN among individuals with type 2 diabetes.

The impact of concordant and discordant comorbidities on patient-assessed quality of diabetes care

OBJECTIVE

To examine the impact of concordant and discordant comorbidities on patients' assessments of providers' adherence to diabetes-specific care guidelines and quality of chronic illness care.

RESEARCH DESIGN AND METHODS

A population-based survey of 3761 adults with type 2 diabetes, living in Queensland, Australia was conducted in 2008. Based on self-reports, participants were grouped into four mutually exclusive comorbid categories: none, concordant only, discordant only and both concordant and discordant. Outcome measures included patient-reported providers' adherence to guideline-recommended care and the Patient Assessment of Chronic Illness Care (PACIC), which measures care according to the Chronic Care Model. Analyses using the former measure included logistic regressions, and the latter measure included univariate analysis of variance, both unadjusted and adjusted for sampling region, gender, age, educational attainment, diabetes duration and treatment status.

RESULTS

Having concordant comorbidities increased the odds of patient-reported providers' adherence for 7 of the 11 guideline-recommended care activities in unadjusted analyses. However, the effect remained significant for only two provider activities (reviews of medication and/or complications and blood pressure examinations) when adjusted. A similar pattern was found for the both concordant and discordant comorbidity category. The presence of discordant comorbidities influenced only one provider activity (blood pressure examinations). No association between comorbidity type and the overall PACIC score was found.

CONCLUSIONS

Comorbidity type is associated with diabetes-specific care, but does not seem to influence broader aspects of chronic illness care directly. Providers need to place more emphasis on care activities which are not comorbidity-specific and thus transferable across different chronic conditions.

Screening for diabetic retinopathy and nephropathy in patients with diabetes: a nationwide survey in Korea

This study was performed to identify factors associated with screening for diabetic retinopathy and nephropathy. Data from the Korean National Health and Nutrition Examination Survey between 2007 and 2009 were analyzed. Of 24,871 participants, 1,288 patients diagnosed with diabetes at ≥30 years of age were included. 36.3% received screening for diabetic retinopathy, and 40.5% received screening for diabetic nephropathy during the previous year. Patients living in rural areas, those with less education, those who had not received education about diabetes care, and those who did not receive medical care for diabetes were screened less often for retinopathy or nephropathy. Patients with poorer self-reported health status were screened more often. Occupation, smoking status, and diabetes duration were associated with retinopathy screening. Lower family income was associated with decreased nephropathy screening. Receiving education about diabetes care and receiving medical care for diabetes were significant factors in patients with a shorter duration of diabetes (the significant odds ratio [OR] of not receiving education varied between 0.27 and 0.51, and that of not receiving medical care varied between 0.34 and 0.42). Sociodemographic factors and health-related factors as well as education and medical care influenced screening for diabetic complications among those with a longer duration of diabetes (for retinopathy and nephropathy, the significant OR of living in a rural area varied between 0.56 and 0.61; for retinopathy, the significant OR of current smokers was 0.55, and the p-trend of subjective health status was <0.001; for nephropathy, the significant OR of a monthly household income of <3000 dollars was 0.61 and the p-trends of education and subjective health status were 0.030 and 0.007, respectively). Efforts to decrease sociodemographic disparities should be combined with education about diabetes care to increase the screening, especially for those with a longer duration of diabetes.

Older subjects with diabetes and prediabetes are frequently unaware of having distal sensorimotor polyneuropathy: the KORA F4 study

OBJECTIVE

Distal sensorimotor polyneuropathy (DSPN) is a severe complication of type 2 diabetes. This study aimed to assess the prevalence of unawareness of DSPN in prediabetes and diabetes in a sample of the older population of Augsburg, Germany.

RESEARCH DESIGN AND METHODS

Glucose tolerance status was determined in 61- to 82-year-old participants of the population-based KORA F4 Study (2006-2008) (n = 1,100). Clinical DSPN was defined as the presence of bilaterally impaired foot-vibration perception and/or bilaterally impaired foot-pressure sensation. DSPN case subjects were considered unaware of their condition when answering "no" to the question, "Has a physician ever told you that you are suffering from nerve damage, neuropathy, polyneuropathy, or diabetic foot?"

RESULTS

Clinical DSPN was prevalent in 154 (14%) participants, 140 of whom were unaware of their disorder. At a prevalence of 23.9% (95% CI 12.6-38.8), participants with combined impaired fasting glucose and impaired glucose tolerance had the highest prevalence of DSPN. Of these, 10 of 11 (91%) were unaware of having clinical DSPN. Participants with known diabetes had an equally high prevalence of DSPN [22.0% (16.2-28.9)], with 30 of the 39 (77%) DSPN case subjects unaware of having the disorder. Among subjects with known diabetes who reported to have had their feet examined by a physician, 18 of 25 (72%) clinical DSPN case subjects emerged unaware of having DSPN.

CONCLUSIONS

Our findings showed a high prevalence of unawareness of having clinical DSPN among the prediabetic and diabetic groups and an insufficient frequency of professional foot examinations, suggesting inadequate attention to diabetic foot prevention practice.

Feasibility of screening for diabetic retinopathy at an Australian pathology collection service: a pilot study

OBJECTIVE

To evaluate the feasibility of a novel diabetic retinopathy (DR) screening model using a pathology collection centre (PCC) as a screening site.

DESIGN AND SETTING

Cross-sectional pilot study conducted in one urban PCC in Victoria between 1 September 2009 and 15 March 2010. Trained pathology staff screened participants for DR using undilated, non-stereoscopic colour fundus photography.

PARTICIPANTS

Participants were patients who spoke English, were aged at least 12 years, had type 1 or type 2 diabetes, and did not undertake biannual DR screening.

MAIN OUTCOME MEASURES

Proportion of patients who do not participate in biannual DR screening; proportion of patients who accept DR screening while attending a PCC; proportion of gradable images; patient acceptance of the screening model; and effectiveness of the follow-up pathway.

RESULTS

Over 6 months, 289 English-speaking patients with diabetes attended the PCC, of whom 99 (34.3%) had not undertaken biannual DR screening. Of these, 93 (93.9%) accepted our screening service. Overall, retinal images were sufficient for interpretation in 88 patients (94.6%) and the median time for photography was 6 minutes (interquartile range, 10 minutes). Two, eight and six cases of minimal, mild and moderate non-proliferative DR (NPDR) in the worst eye were found, respectively. Dissemination of screening results to treating doctors and patients was found to be suboptimal and will need to be revised.

CONCLUSION

DR screening in one urban PCC appears to be a feasible alternative for diabetic patients who do not undertake biannual screening for DR.

Factors affecting the motivation of healthcare professionals providing care to Emiratis with type 2 diabetes

Objective

We aimed to identify facilitators of and barriers to healthcare professionals' motivation in a diabetes centre in the United Arab Emirates (UAE).

Design

A qualitative research approach was employed using semistructured interviews to assess perception of and attitudes regarding healthcare professionals' motivation in providing good quality diabetes care.

Setting

A diabetes centre located in Abu-Dhabi, UAE.

Participants

Healthcare professionals including specialist physicians, dieticians, podiatrists, health educators and nurses were recruited through purposive sampling.

Main outcome measures

After data collection, the audiotaped interviews were transcribed verbatim and subjected to content analysis.

Results

Nine semistructured interviews were conducted with healthcare professionals of various professional backgrounds. Important facilitators and barriers related to patient, professional, organization and cultural factors were identified. Barriers that related to heavy workload, disjointed care, lack of patient compliance and awareness, and cultural beliefs and attitudes about diabetes were common. Key facilitators included the patient's role in achieving therapeutic outcomes as well as compliance, cooperation and communication.

Conclusion

This qualitative study provides some unique insights about factors affecting healthcare professionals' motivation in providing good quality care. To improve the motivation of healthcare professionals in the management of diabetes and therefore the quality of diabetes care, several steps are needed. Importantly, the role of primary care should be reinforced and strengthened regarding the management of type 2 diabetes mellitus, privacy of the consultation time should be highly protected and regulated, and awareness of the Emirate culture and its impact on health should be disseminated to the healthcare professionals providing care to Emirates with diabetes. Also, greater emphasis should be placed on educating Emiratis with diabetes on, and involving them in, the management of their condition.

Evidence-based decision-making: the case for diabetes care

Clinical decisions in diabetes care are complex, because they cover a wide range of unrelated issues which are affected by varied contexts of healthcare providers from multiple disciplines. The purpose of this paper is to reflect on the extent to which evidence is used to underpin clinical decisions within the area of diabetes care. In order to do this, it is necessary to capture information on the application of principles of evidence-based practice in diabetes care. Publications debating the nature of evidence-based practice and diabetes care were identified through searching the MEDLINE and CINAHL databases and located through the search engine Google. Additional publications were identified from references cited in relevant papers. These publications viewed evidence-based decisions as a balanced integration of different aspects of the clinical situation such as patient preference and clinician experience, in addition to the best available evidence. Simultaneously, each aspect of clinical care needs different forms of evidence. This is the argument for evidence-based diabetes care, where heterogeneous variables interact in different milieus. In conclusion, evidence-based diabetes care is a loose structure and set of ideas which needs to be adjusted according to each specific clinical situation.

Standardising practices improves clinical diabetic foot management: the Queensland Diabetic Foot Innovation Project, 2006-09

OBJECTIVE

The aim of this paper is to report the clinical practice changes resulting from strategies to standardise diabetic foot clinical management in three diverse ambulatory service sites in Queensland, Australia.

METHODS

Multifaceted strategies were implemented in 2008, including: multidisciplinary teams, clinical pathways, clinical training, clinical indicators, and telehealth support. Prior to the intervention, none of the aforementioned strategies were used, except one site had a basic multidisciplinary team. A retrospective audit of consecutive patient records from July 2006 to June 2007 determined baseline clinical activity (n=101). A clinical pathway teleform was implemented as a clinical activity analyser in 2008 (n=327) and followed up in 2009 (n=406). Pre- and post-implementation data were analysed using Chi-square tests with a significance level set at P<0.05.

RESULTS

There was an improvement in surveillance of the high risk population of 34% in 2008 and 19% in 2009, and treating according to risk of 15% in 2009 (P<0.05). The documentation of all best-practice clinical activities performed improved 13-66% (P<0.03).

CONCLUSION

These findings support the use of multifaceted strategies to standardise practice and improve diabetic foot complications management in diverse ambulatory services.

An organised approach to the podiatric care of people with diabetes in regional Australia

OBJECTIVE

To ensure an efficient publicly funded podiatric service for people with diabetes in regional Victoria, a Podiatry Diabetes Model (PDM) of care was developed. The aim of this study was to determine if people with diabetes attended the most appropriate podiatric service as depicted by the model.

METHODS

A 3-month prospective clinical audit of the PDM was undertaken. Primary variables of interest were the podiatric service where the patients were seen and the patients' risk of future foot morbidity. Chi-square analyses for each service category were undertaken to compare the expected number of patients seen according to foot-health risk as predicted by the model, with what was observed.

RESULTS

Five hundred and seventy-six people with diabetes were seen in the 3-month period. There was no statistically significant difference between the proportion of patients seen by each podiatric service according to risk status, with what was expected (community: χ(2)=3.3, P=0.4; subacute: χ(2)=8.0, P=0.05; acute: χ(2)=6.6, P=0.09).

CONCLUSIONS

The Podiatry Diabetes Model is a sound podiatric model of care and is an example of cross-organisational collaboration that could be implemented in other areas of Australia.

Comparison of diabetes management in five countries for general and indigenous populations: an internet-based review

Background

The diabetes epidemic is associated with huge human and economic costs, with some groups, such as indigenous populations in industrialised countries, being at especially high risk. Monitoring and improving diabetes care at a population level are important to reduce diabetes-related morbidity and mortality. A set of diabetes indicators has been developed collaboratively among the Organisation for Economic Co-operation and Development (OECD) countries to monitor performance of diabetes care. The aim of this review was to provide an overview of diabetes management in five selected OECD countries (Australia, Canada, New Zealand, the US and the UK), based on data available for general and indigenous populations where appropriate.

Methods

We searched websites of health departments and leading national organisations related to diabetes care in each of the five countries to identify publicly released reports relevant to diabetes care. We collected data relevant to 6 OECD diabetes indicators on processes of diabetes care (annual HbA1c testing, lipid testing, renal function screening and eye examination) and proximal outcomes (HbA1c and lipid control).

Results

Data were drawn from 29 websites, with 14 reports and 13 associated data sources included in this review. Australia, New Zealand, the US and the UK had national data available to construct most of the 6 OECD diabetes indicators, but Canadian data were limited to two indicators. New Zealand and the US had national level diabetes care data for indigenous populations, showing relatively poorer care among these groups when compared with general populations. The US and UK performed well across the four process indicators when compared with Australia and New Zealand. For example, annual HbA1c testing and lipid testing were delivered to 70-80% of patients in the US and UK; the corresponding figures for Australia and New Zealand were 50-60%. Regarding proximal outcomes, HbA1c control for patients in Australia and New Zealand tended to be relatively better than patients in the US and UK.

Conclusions

Substantial efforts have been made in the five countries to develop routine data collection systems to monitor performance of diabetes management. Available performance data identify considerable gaps in clinical care of diabetes across countries. Policy makers and health service providers across countries can learn from each other to improve data collection and delivery of diabetes care at the population level.

Diabetes impairs arteriogenesis in the peripheral circulation: review of molecular mechanisms

Patients suffering from both diabetes and PAD (peripheral arterial disease) are at risk of developing critical limb ischaemia and ulceration, and potentially requiring limb amputation. In addition, diabetes complicates surgical treatment of PAD and impairs arteriogenesis. Arteriogenesis is defined as the remodelling of pre-existing arterioles into conductance vessels to restore the perfusion distal to the occluded artery. Several strategies to promote arteriogenesis in the peripheral circulation have been devised, but the mechanisms through which diabetes impairs arteriogenesis are poorly understood. The present review provides an overview of the current literature on the deteriorating effects of diabetes on the key players in the arteriogenesis process. Diabetes affects arteriogenesis at a number of levels. First, it elevates vasomotor tone and attenuates sensing of shear stress and the response to vasodilatory stimuli, reducing the recruitment and dilatation of collateral arteries. Secondly, diabetes impairs the downstream signalling of monocytes, without decreasing monocyte attraction. In addition, EPC (endothelial progenitor cell) function is attenuated in diabetes. There is ample evidence that growth factor signalling is impaired in diabetic arteriogenesis. Although these defects could be restored in animal experiments, clinical results have been disappointing. Furthermore, the diabetes-induced impairment of eNOS (endothelial NO synthase) strongly affects outward remodelling, as NO signalling plays a key role in several remodelling processes. Finally, in the structural phase of arteriogenesis, diabetes impairs matrix turnover, smooth muscle cell proliferation and fibroblast migration. The review concludes with suggestions for new and more sophisticated therapeutic approaches for the diabetic population.

Foot problems and effectiveness of foot care education in children and adolescents with diabetes mellitus

OBJECTIVES

To assess foot care in paediatric and adolescent patients with diabetes mellitus and to evaluate the effectiveness of foot care education given to participants.

RESEARCH DESIGN AND METHODS

An 8-month prospective study of foot care in children and adolescents with type 1 and type 2 diabetes mellitus who attended diabetes clinics at the Royal Children's Hospital, Melbourne, where foot examination was performed at baseline and at follow-up. Patients and parents were given oral and written advice regarding foot care.

RESULTS

Five hundred and fifty-seven patients were examined at baseline, and 312 patients were reviewed at follow-up 3-6 months later. The majority of foot problems found at first assessment were potentially modifiable disorders of skin and nails (68.8%). The remainder (31.2%) were structural musculoskeletal disorders requiring referral to a podiatrist/orthotist. A total of 532 foot problems were recorded at baseline in a cohort of 557 patients and 161 foot problems at follow-up of 312 patients. Significant reduction of modifiable foot problems was seen at follow-up, particularly in those with longer duration of diabetes and in those whose body mass index was higher.

CONCLUSIONS

This study highlights the importance of foot examination and foot care advice for children and adolescents with diabetes. Larger prospective studies are required to establish prevalence and to optimize preventive interventions.

Care of vision and ocular health in diabetic members of a national diabetes organization: a cross-sectional study

Background

Regular examination and early treatment of diabetic retinopathy can prevent visual loss. The aim of the study was to describe the care of vision and ocular health in people with diabetes in Norway.

Methods

A cross-sectional questionnaire survey of a random sample (n = 1,887) of the Norwegian Diabetic Associations' (NDA) members was carried out in 2005. Questions were asked about care of vision and ocular health, history of ocular disease and visual symptoms, general medical history and diabetes management. The study was approved by the Regional Committee for Medical Research Ethics.

Results

The response rate was 74%. Forty-four questionnaires with incomplete data regarding gender, age or type of diabetes were excluded, leaving 1352 cases (52% females) for analysis. 451 (33%) had type 1 and 901 (67%) had type 2 diabetes, the mean duration of diabetes was respectively, 22 (sd ± 14) and 10 (sd ± 9) years. In all 1,052 (78%) had their eyes examined according to guidelines and 1,169 (87%) confirmed to have received information about regular eye examinations. One in two recalled to have received such information from their general practitioner. To have received information about the importance of eye examinations (PR 3.1, 95% CI 2.4 to 4.0), and diabetes duration > 10 years (PR 1.2, 95% CI 1.2 to 1.3), were independently associated with reporting regular eye examinations. A history of diabetic retinopathy was reported by 178 (13%) responders, of which 101 (57%) reported a history of laser treatment. Responders who had regular eye examinations reported more frequently a history of diabetic retinopathy (19% vs. 5%, p < 0.001). The frequency of retinopathy was significantly higher in responders with reported HbA1c values above treatment target (23% vs. 13%, p = 0.001). However, in responders who were not regularly examined, there was no difference in reported frequency of retinopathy with regard to HbA1c level.

Conclusion

Eight out of ten diabetic members of the NDA had their eyes examined according to current guidelines and the majority was well informed about the risk of vision loss due to diabetes. The results indicate that the reported history of diabetic retinopathy likely underestimates the prevalence of retinopathy.

Regularity of preventive foot care in persons with diabetes: results from the Nord-Trøndelag Health Study

The purpose of the present study was to examine the regularity of preventive care for persons with diabetes in the Nord-Trøndelag Health Study to identify associated demographic, lifestyle, and disease-related factors. Among 1,972 persons with diabetes, 1,459 (74%) answered questions related to preventive foot care. The final sample included 1,312 persons with known diabetes, but without a self-reported history of foot ulcer. Almost 85% reported receiving regular clinical diabetes examinations, 31.7% reported regular foot inspection by health care personnel, and 66.3% reported foot self-inspection. Only 58.8% reported regular clinical diabetes examination combined with foot inspection. Males, patients not using insulin, and those with shorter diabetes duration or macrovascular complications were more likely to report less regular preventive care.

Complications of diabetes in urban Indigenous Australians: the DRUID study

AIMS

To accurately assess the management and complications of type 2 diabetes in urban Indigenous Australians and compare the risk of complications with a general Australian population (AusDiab Study).

METHODS

The Darwin Region Urban Indigenous Diabetes (DRUID) Study included 1004 volunteers aged >/=15 years; diabetes status was classifiable for 866. The assessment of diabetic complications and metabolic control was performed in participants with known diabetes (KDM) and diabetes newly diagnosed by the study (NDM) using an interviewer-administered questionnaire and clinical examination.

RESULTS

Among 172 DRUID participants eligible for complications assessment, 135 were assessed, including 99 KDM (mean age 53 years) and 36 NDM (mean age 47 years). Percentages of KDM participants meeting therapeutic targets were: HbA1c<7%, 29%; blood pressure<130/80mmHg, 45%; total cholesterol<5.5mmol/L, 65%. Among KDM, 39% had albuminuria, 21% retinopathy, 12% peripheral vascular disease (PVD), 9% neuropathy. Factors independently associated with diabetic complications were: albuminuria-HbA1c, systolic blood pressure; retinopathy-diabetes duration; PVD-age. Compared to AusDiab participants after adjusting for other risk factors, DRUID participants had 2-3-fold increased risk of albuminuria and PVD and a non-significant increased risk of neuropathy, but no increased risk of retinopathy.

CONCLUSIONS

Urban Indigenous Australians with diabetes are relatively young and have poor glycaemic control. Compared to the general Australian population with type 2 diabetes, they have greater adjusted risk of albuminuria and PVD but not retinopathy. Urgent action is required to prevent diabetes at a population level and improve diabetes management in this high-risk population.

Virtual community consultation? Using the literature and weblogs to link community perspectives and health technology assessment

BACKGROUND

Community views, expressed in social impact assessments and collected through community consultation, should play an important role in health technology assessment (HTA). Yet HTA methodologists have been slow to include outcomes of these forms of inquiry in analyses, in part because collecting community views is time-consuming and resource intensive.

OBJECTIVE

To explore how community views sourced from published studies, grey literature and informal internet web pages can inform HTA.

METHODS

A technology reviewed by Adelaide HTA in 2004 was selected: retinal photography for detection of diabetic retinopathy. Published literature, 'grey' literature and informal web pages were searched to examine the availability of evidence about service community and user community views with respect to this technology. Particular efforts were made to source evidence relating to rural, remote and Aboriginal populations.

RESULTS

We found that journal articles, reports from the grey literature and informal internet web pages (including blogs and discussion forums) can provide valuable insight into community views. Although there was little empirical evidence relating to the experience of diabetes and diabetes management in rural, remote and Aboriginal communities, there were indications that some evidence may be transferable from other populations.

CONCLUSIONS

Community perspectives on selected health technologies can be gauged from available resources in published and grey literature and perspectives collected in this way can provide insight into whether the introduction of the technology would be acceptable to the community. The limitations of this approach are discussed.

Retinal arteriolar caliber predicts incident retinopathy: the Australian Diabetes, Obesity and Lifestyle (AusDiab) study

Changes in retinal vascular caliber may reflect subclinical microvascular disease and provide prognostic information regarding risk of retinopathy. In this study, we examined the prospective association of retinal vascular caliber with retinopathy risk in an Australian population-based cohort. A total of 906 participants without retinopathy at baseline had retinal vascular caliber measured from photographs and were followed-up for 5 years for incident retinopathy. After adjusting for age, sex, systolic blood pressure, A1C, and other risk factors, individuals with wider retinal arteriolar caliber (widest 25% vs. the remaining three-quarters of the population) were more likely to develop incident retinopathy (odds ratio 4.79 [95% CI 1.57-14.58]). This association was not significant in individuals without diabetes. Venular caliber did not predict incident retinopathy. Our findings suggest that retinal arteriolar dilatation is a specific sign of diabetic microvascular dysfunction and may be a preclinical marker of diabetic retinopathy.

Diabetes risk factors, diabetes and diabetes care in a rural Australian community

OBJECTIVE

To comprehensively describe diabetes-related risk factors, quality of care and patient-perceived barriers to care in a rural community.

DESIGN

Cross-sectional mail study, self-completed survey and retrospective chart review.

SETTING

Community and health services in Corryong, rural Victoria, Australia.

PARTICIPANTS

Ninety-seven patients with diabetes and 495 with other diseases in the mail study, 84 with diabetes in the self-completed survey and 101 diabetic patient chart reviews.

MAIN OUTCOME MEASURES

Self-reported lifestyle activities, uptake of health checks, metabolic measures and uptake of medication, and self-reported barriers to diabetes care.

RESULTS

Most residents without diabetes had recently had their blood pressure and cholesterol checked; 60.4% were trying to control their weight and 73.9% were exercising regularly (although only 30.7% to an adequate level). Those with diabetes reported a greater uptake of healthy living messages, and had a mean HbA1c of 7.3%, total cholesterol of 5.0 mmol L(-1); 12.9% had a diastolic blood pressure > or =85 mmHg. Foot checks were infrequent (18%). There was substantial room to increase antiplatelet, blood pressure, antihyperglycaemia and lipid-lowering therapy. Most patients reported psychological (84.5%) and educational (82.1%) barriers to care, with few perceiving physical barriers to care.

CONCLUSION

Living in a rural area with predominantly GP care can be associated with comparatively good metabolic control, although psycho-educational barriers are frequently present. In the wider community, risk factors for diabetes remain common, and the majority have been screened for components of the metabolic syndrome in the previous year.

Improving diabetic retinopathy screening ratios using telemedicine-based digital retinal imaging technology: the Vine Hill study

OBJECTIVE

To evaluate the impact of a telemedicine, digital retinal imaging strategy on diabetic retinopathy screening rates in an inner-city primary care clinic.

RESEARCH DESIGN AND METHODS

This retrospective cohort study included all diabetic patients aged > or = 18 years (n = 495) seen at Vine Hill Community Clinic between 1 September 2003 and 31 August 2004. Patients were offered ophthalmology referral or digital screening. Patients choosing referral received the next available (within 3 months) appointment at the Vanderbilt Eye Clinic; patients choosing digital screening were screened during the visit.

RESULTS

Retinal screening was documented for 293 (59.2%) patients, a significant improvement compared with the 23% baseline rate. Of 293 patients screened, 92 (31.4%) were screened in ophthalmology, and 201 (68.6%) were digitally screened. Among the 201 digitally screened patients, 104 (51.7%) screened negative and were advised to rescreen in 1 year, 75 (37.3%) screened positive and were nonurgently referred to ophthalmology, and 22 (11.0%) screened positive for sight-threatening eye disease and were urgently referred for ophthalmological follow-up. Digital imaging technical failure rate was 0.5%. Referral status was associated with race/ethnicity (chi2 = 7.9, P < 0.02) with whites more likely to screen negative than non-whites (62.4 vs. 47.8%, respectively). Sight-threatening disease among non-whites (14.7%) was more than double that observed for whites (5.9%).

CONCLUSIONS

Digital imaging technology in the primary care visit can significantly improve screening rates over conventional methods, increase access to recommended diabetic eye care, and focus specialty care on medically indigent patients with greatest need.