Research Article

Overweight and Obesity among Recipients of Antiretroviral Therapy at HIV Clinics in Gaborone, Botswana: Factors Associated with Change in Body Mass Index

Table 2

Baseline characteristics and bivariate analysis of participants by BMI status at their first clinic visit (BMI-1) categorized as underweight, normal, and overweight/obesity ().

CharacteristicsBMI at the first clinic visit (BMI-1)
TotalUnderweightNormal BMI††Overweight/obesityUOR-value

Age-1 at ART initiation [in years, (mean ± SD)]41.4 ± 8.840.9 + 10.541.2 ± 8.642.2 ± 8.10.520
Gender
Male, (%)163 (30.7)45 (56.3)99 (29.4)19 (16.7)1
Female, (%)368 (69.3)35 (43.7)238 (70.6)95 (83.3)2.640.001
CD4+ cells/mm3at first the clinic visit
Median (IQR)132 (47–132)99 (41–190)133 (44–193)150 (69–216)0.030
CD4+ cells/mm3 categories at the first clinic visit
≥350, (%)23 (4.3)2 (2.5)11 (3.6)9 (7.9)1
Nadir (0–200), (%)408 (76.8)62 (77.5)266 (78.9)80 (70.2)0.24<0.001
201–349, (%)100 (18.8)16 (20.0)59 (17.5)25 (21.9)0.33<0.001

BMI = body mass index; overweight/obesity = aggregate of overweight, obesity and morbidly-obese; UOR = unadjusted odds ratio; ART = antiretroviral therapy; SD = standard deviation; IQR = interquartile rage; ; ††outcome of interest;reference group.