Table 1.
Baseline characteristics of the cohort of HIV-positive adults in Soweto, South Africa by baseline BMI category.
| Baseline characteristics | BMI category (kg/m2) |
|||||
|---|---|---|---|---|---|---|
| Underweight <18.5 | Normal 18.5–25 | Overweight 25.1–30 | Obese >30 | All | P | |
| n (%) | 334 (10) | 1702 (49) | 798 (23) | 621 (18) | 3456 (100) | – |
| Women, n (%) | 206 (61) | 1184 (70) | 715 (90) | 599 (96) | 2704 (78) | <0.001a |
| Median weight (IQR, kg) | 46 (42–50) | 57 (53–62) | 70 (65–74) | 87 (79–96) | 62 (54–73) | – |
| Women | 44 (40–47) | 56 (52–60) | 69 (65–73) | 86 (79–95) | 63 (54–74) | <0.001b |
| Men | 49 (46–53) | 61 (57–66) | 77 (73–84) | 94 (87–107) | 61 (55–68) | <0.001b |
| Median height (IQR, cm) | 164 (158–170) | 163 (157–169) | 160 (156–165) | 159 (155–163) | 161 (156–166) | – |
| Women | 160 (156–165) | 160 (155–164) | 159 (155–164) | 159 (155–163) | 160 (155–164) | 0.013b |
| Men | 171 (166–176) | 170 (165–175) | 170 (165–175) | 171 (165–175) | 170 (165–175) | 0.339b |
| Median age (IQR) | 33 (28–40) | 32 (28–38) | 33 (29–38) | 34 (29–38) | 33 (28–38) | <0.001b |
| Median household income (IQR, Rand/month) | 860 (400–1600) | 1000 (650–1960) | 1080 (570–2000) | 1080 (580–2000) | 1000 (580–1970) | 0.005b |
| Median CD4 cell count (IQR, cells/μl) | 151 (54–292) | 264 (140–410) | 335 (196–500) | 380 (236–542) | 285 (153–452) | <0.001b |
| Years since HIV diagnosis (IQR) | 0.9 (0.3–2.3) | 1.2 (0.4–3.0) | 1.6 (0.6–3.8) | 1.7 (0.6–4.2) | 1.3 (0.5–3.3) | <0.001b |
| TB at baseline visit, n (%) | 74 (22) | 186 (11) | 40 (5) | 24 (4) | 324 (9) | <0.001a |
| History of TB, n (%) | 258 (15) | 55 (16) | 78 (10) | 47 (8) | 438 (13) | <0.001a |
IQR, interquartile range; TB, tuberculosis.
a
P value represents Pearson’s χ2 test.
b
P value represents Wilcoxon rank-sum test.