Missed opportunities in tuberculosis investigation and associated factors at public health facilities in Uganda

Missed opportunity for tuberculosis screening among patients presenting at two health facilities in Manafwa district, Uganda

Missed opportunities for Tuberculosis (TB) screening are key drivers of continued tuberculosis transmission. To determine the proportion of and factors associated with missing TB screening amongst patients who attended Bubulo and Butiru health facilities in the Manafwa district to inform future TB prevention and control efforts in Uganda. This was a facility-based, cross-sectional study with quantitative methods of data collection. 125 patients (≥18 years) with at least one symptom suggestive of TB were systematically selected and interviewed at the exit. Data analysis was done by Stata version 15, using a cluster-based logistic regression model. Of the 125 patients enrolled at both sites, 39% (n=49) were aged between 30 and 49 years; 75.2% (n=94) were females; 44% (n=55) were married while 66.4% (n=83) had a primary level of education. Of the patients enrolled in the study, 68% (n=85) had a missed opportunity for TB screening. Having a; post-primary education level (Adjusted Odds Ratio [AOR]=5.9; 95% Confidence Interval [95% CI]=1.3, 27.1) and attending Bubulo HCIV (AOR=0.01; 95% CI: 0.01, 0.2) were significantly associated with having a missed opportunity for TB screening. Our findings show that slightly more than two-thirds of the patients who presented to the study health facilities with symptoms suggestive of TB missed the opportunity to be screened for TB. Study findings suggest a need for interventions to increase TB screening, particularly among better-educated TB patients.

Cost-effectiveness of GeneXpert Omni compared with GeneXpert MTB/Rif for point-of-care diagnosis of tuberculosis in a low-resource, high-burden setting in Eastern Uganda: a cost-effectiveness analysis based on decision analytical modelling

OBJECTIVE

To determine the cost-effectiveness of Xpert Omni compared with Xpert MTB/Rif for point-of-care diagnosis of tuberculosis among presumptive cases in a low-resource, high burden facility.

DESIGN

Cost-effectiveness analysis from the provider's perspective.

SETTING

A low-resource, high tuberculosis burden district in Eastern Uganda.

PARTICIPANTS

A provider's perspective was used, and thus, data were collected from experts in the field of tuberculosis diagnosis purposively selected at the local, subnational and national levels.

METHODS

A decision analysis model was contracted from TreeAge comparing Xpert MTB/Rif and Xpert Omni. Cost estimation was done using the ingredients' approach. One-way deterministic sensitivity analyses were performed to identify the most influential model parameters.

OUTCOME MEASURE

The outcome measure was incremental cost per additional test diagnosed expressed as the incremental cost-effectiveness ratio.

RESULTS

The total cost per test for Xpert MTB/Rif was US$14.933. Cartridge and reagent kits contributed to 67% of Xpert MTB/Rif costs. Sample transport costs increased the cost per test of Xpert MTB/Rif by $1.28. The total cost per test for Xpert Omni was $16.153. Cartridge and reagent kits contributed to over 71.2% of Xpert Omni's cost per test. The incremental cost-effectiveness ratio for using Xpert Omni as a replacement for Xpert MTB/Rif was US$30.73 per additional case detected. There was no dominance noted in the cost-effectiveness analysis, meaning no strategy was dominant over the other.

CONCLUSION

The use of Xpert Omni at the point-of-care health facility was more effective but with an increased cost compared with Xpert MTB/Rif at the centralised referral testing facility.

HIV, tuberculosis, diabetes mellitus and hypertension admissions and premature mortality among adults in Uganda from 2011 to 2019: is the tide turning?

BACKGROUND

The growing burden of diabetes mellitus (DM) and hypertension (HTN) on the background of endemic Human Immuno-deficiency Virus (HIV) and tuberculosis (TB) is a concern in low- and middle-income countries. We aimed to describe annual trends in admissions, mortality rates and premature mortality (years of potential life lost-YPLLs) due to HIV, tuberculosis (TB), diabetes mellitus (DM) and hypertension (HTN) in Uganda.

METHODS

We conducted a retrospective cohort study, retrieving electronic records of adults admitted to Mulago and Kiruddu national referral hospitals medical wards between 1st January 2011 and 31st December 2019. We used STATA BE 17.0 and GraphPad Prism 8.0.2 to compute total admissions, inpatient crude mortality rates, and YPLLs; and demonstrate trends using Mann-Kendall test.

RESULTS

Of 108,357 admissions, 55,620 (51.3%) were female, 15,300 (14.1%) were recorded in 2012, and 22,997 (21.2%) were aged 21-30 years. HIV, TB, DM and HTN accounted for 26,021 (24.0%); 9537 (8.8%); 13,708 (12.7) and 13,252 (12.2%) of all admissions, respectively. Overall inpatient mortality was 16.7% (18,099/108,357), 53.5% (9674/18,099) were male, 21.5% (3898) were aged 31-40 years and 2597 (14.4%) were registered in 2013. HIV, TB, DM and HTN accounted for 35.6% (6444), 14.6% (2646), 9.1% (1648) and 11.8% (2142) of all deaths, respectively. Total admissions (Kendall's tau-B = - 0.833, p < 0.001) and deaths declined (Kendall's tau-B = - 0.611, p = 0.029). A total of 355,514 (mean = 20.8 years, SD 30.0) YPLLs were recorded, of which 54.6% (191,869) were in males; 36.2% (128,755) were among those aged 21-30 years and were recorded in 2012 (54,717; 15.4%). HIV, TB, DM and HTN accounted for 46.5% (165,352); 19.5% (69,347); 4.8% (16,991) and 4.5% (16,167) of YPLLs, respectively. Proportionate contribution of HIV to deaths and YPLLs declined, remained stagnant for TB; and increased for both DM and HTN.

CONCLUSION

TB and HIV account for higher though declining, while DM and HTN account for lower albeit rising morbidity and premature mortality among adult medical patients in Uganda. TB prevention and treatment; and DM/HTN service integration in HIV care should be optimized and scaled up.

Missed Tuberculosis Investigations and Associated Factors in Patients with Symptoms Indicative of Tuberculosis at Public Health Institutions in Northwest Ethiopia: The Application of a Negative Binomial Model

Background

Tuberculosis (TB) remains one of the top health problems in Ethiopia, and over one-third of estimated TB cases remain undetected. This study examined the magnitude and factors of missed opportunities for TB investigation at public health facilities in Northwest Ethiopia.

Methods

A facility-based cross-sectional study was conducted among 412 adult patients with TB symptoms from 34 randomly selected public health facilities. Data on socio-demographics, TB symptoms, and clinical status were collected by an exit interview. A patient was considered missed for TB investigation if he/she had at least one symptom suggestive of TB but did not receive a sputum smear and/or x-ray evaluation to rule out TB. We computed descriptive and analytical statistics using SPSS version 26. A negative binomial regression analysis was used to identify factors associated with missed opportunities for TB investigation. Statistical significance was determined at a p-value less than 0.05.

Results

A total of 412 presumptive TB patients, 235 (57%) females and 247 (60%) rural dwellers were interviewed. The mean age of respondents was 35 ± 8 years and 228 (55.3%) were from health centers. Over two-thirds, 284 (69%) were new patients, 62 (15%) were HIV positive and 78 (19%) had diabetes mellitus (DM). Fifty patients with symptoms suggestive of TB did not receive sputum evaluation services. Inability to read and write, having DM, having normal body mass index and facility type they visited were significant factors to missing opportunities to get TB investigations.

Conclusion

A significant number of patients with symptoms suggestive of TB were missed for sputum evaluation to rule out TB. Education level, comorbidity, nutritional status and type of facility patients attended were factors of missing opportunities for TB investigation. Thus, improving quality of TB diagnosis, screening TB among all types of patients, and paying attention to screen illiterate people are crucial to avoid missing potential TB cases.

Perceptions of Adolescents and Health Workers Towards Adolescents' TB Diagnosis in Central Uganda: A Cross-Sectional Qualitative Study

PURPOSE

Prompt diagnosis of TB among adolescents may reduce transmission and improve individual outcomes. However, TB diagnosis in adolescents is challenging. This study sought to understand challenges to adolescent TB diagnosis.

METHODS

We conducted qualitative focus group discussions (FGDs) to explore adolescents' and health workers' perspectives on challenges to TB diagnosis among adolescents seeking care at four secondary health care facilities in Uganda. Eight FGDs were conducted: four with 32 adolescents consulting for medical care and four with 34 health workers involved in TB care.

RESULTS

Adolescents were aware of TB and associated risk factors and believed behaviours like smoking and alcohol use are risk factors for TB. They reported school schedules limit them from seeking TB care and have to miss school or wait for holidays to seek TB diagnosis. They noted school nurses do not take much interest in diagnosing TB and do not refer them to hospitals for further evaluation when they present with TB symptoms. Furthermore, adolescents reported cross-cutting issues like loss of trust in public health systems, encountering unfriendly, judgmental and uncooperative health workers. Health workers mentioned the school environment exposes adolescents to TB as the dormitories they sleep in are overcrowded. They indicated that it was difficult to make a diagnosis of TB in adolescents as the adolescents do not disclose health information. They reported fellow health workers perceive adolescents as being at low risk of TB as they believe most often adolescents are HIV negative and thus have reduced risk of TB.

CONCLUSION

Adolescents present unique challenges that need to be addressed if TB diagnosis is to improve. These challenges could be handled by interventions that lead to minimal disruptions on school schedules, provision of adolescent-friendly services and intervention to build capacity of health care workers in the provision of adolescent-friendly services.