The role of anthropometric and other predictors for diabetes among urban Tanzanians with tuberculosis
Abstract:BACKGROUND: As diabetes impairs tuberculosis (TB) treatment outcomes, it is essential to identify diabetes among TB patients. While little is known about predictors of diabetes among healthy individuals in Africa, predictors among TB patients are almost non-existent.
OBJECTIVE: To assess potential predictors for diabetes among newly diagnosed pulmonary TB patients in Tanzania.
METHODS: TB patients were tested for diabetes using an oral glucose tolerance test, demographic information was collected and anthropometric measurements taken. The association between diabetes and possible predictors were examined using logistic regression analyses.
RESULTS: Of 1205 TB patients, 16.4% (n = 197) had diabetes, 9.0% (n = 108) were aged ≥55 years, 3.3% (n = 40) were overweight (body mass index [BMI] ≥ 25 kg/m2) and 12.7% (n = 152) severely underweight (BMI < 16 kg/m2). Diabetes was most prevalent in the 45–55 year age group, and increasing weight, BMI and waist circumference were associated with diabetes. Severe underweight (BMI < 16 kg/m2) among male TB patients (sex–BMI interaction, P = 0.02) was associated with diabetes (OR 2.52, P = 0.004).
CONCLUSION: Diabetes is a common comorbidity among TB patients. Although diabetes was associated with obesity and was more prevalent among the middle-aged, the majority of TB patients with diabetes comorbidity were young and lean. With diabetes as a major risk factor for TB, and with the lack of strong predictors for diabetes, universal diabetes screening should be implemented in the TB programme.
Document Type: Research Article
Affiliations: 1: Department of Human Nutrition, University of Copenhagen, Frederiksberg, Denmark 2: Muhimbili Research Centre, National Institute for Medical Research, Dar Es Salaam, Tanzania 3: Mwanza Research Centre, National Institute for Medical Research, Mwanza, Tanzania 4: Clinical Research Centre, University of Copenhagen, Hvidovre Hospital, Hvidovre, Denmark 5: Department of International Health, University of Copenhagen, Copenhagen, Denmark; and Steno Diabetes Center, Gentofte, Denmark 6: Steno Diabetes Center, Gentofte, Denmark 7: Department of Infectious Diseases, Odense University Hospital, Copenhagen, Denmark
Publication date: 2012-12-01
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