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. Author manuscript; available in PMC: 2023 Apr 4.
Published in final edited form as: J Bone Miner Res. 2021 Nov 23;37(2):244–255. doi: 10.1002/jbmr.4464

Table 1.

Characteristics of the Rural South African Studv PoDulation, Stratified bv Sex and HIV Status

Characteristic n Men
Women
p b
All (n = 258) HIV+ (n = 34) HIV− (n = 224) p a All (n = 547) HIV+ (n = 129) HIV− (n = 418) p a

Demographic and clinical variables
 Age (years), mean ± SD 805 44.1 ± 16.1 46.2 ± 14.3 43.8 ± 16.3 0.422 44.8 ± 14.2 44.1 ± 11.8 45.0 ± 14.9 0.55 0.537
 SES quartile, n (%) 665 0.705 0.926 0.011
  Q1 (lowest) 7 (3.5) 2 (6.1) 5 (3.1) 13 (2.8) 4 (3.2) 9 (2.6)
  Q2 38 (19.4) 7 (21.2) 31 (19.1) 55 (11.7) 13 (10.6) 42 (12.1)
  Q3 147 (75) 24 (72.7) 122 (75.3) 372 (79.3) 98 (79.7) 274 (28.3)
  Q4 (highest) 4 (2.0) 0 4 (2.5) 29 (6.2) 8 (6.5) 21 (6.1)
 Smoking tobacco, n (%) 773 0.022 0.341 <0.001
  Never 159 (63.6) 15 (44.1) 144 (66.7) 516 (98.7) 126 (97.7) 390 (98.9)
  Ex-smoker 69 (27.6) 16 (47.1) 53 (24.5) 5 (0.9) 2 (1.6) 3 (0.8)
  Current 22 (8.8) 3 (8.8) 19 (8.8) 2 (0.4) 1 (0.7) 1 (0.3)
 Alcohol consumption, n (%) 329 0.536 0.057 <0.001
  Never 27 (30.1) 4 (30.8) 23 (28.8) 204 (87.8) 39 (76.5) 165 (89.2)
  Previous 19 (19.5) 1 (7.7) 18 (22.5) 12 (4.1) 4 (7.8) 8 (4.3)
  Current 47 (50.4) 8 (61.5) 39 (48.8) 20 (8.1) 8 (15.7) 12 (6.5)
 Physical activity (hours/week), median (IQR) 269 3.5 (1.2–7.0) 3.0 (2.5–3.5) 3.5 (1.2–9.0) 0.423 1.8 (1.0–3.5) 2.5 (0.8–5.3) 1.8 (1.0–3.5) 0.512 0.015
 Established on ART, n (%) 163 31 (91.2) 31 (91.2) 113 (87.6) 113 (87.6) 0.561
Anthropometry
 Height (cm), mean ± SD 805 172.6 ± 6.8 172.6 ± 6.2 172.6 ± 6.9 0.956 161.5 ± 6.0 161.5 ± 6.3 161.5 ± 5.9 0.9 <0.001
 Weight (kg), mean ± SD 805 75.1 ± 17.3 67.8 ± 16.1 76.2 ± 17.2 0.008 77.9 ± 17.4 72.1 ± 15.4 79.7 ± 17.5 <0.001 0.014
 BMI, n (%) 805 0.029 <0.001 <0.001
  Underweight 13 (5.0) 3 (8.8) 10 (4.5) 9 (1.7) 5 (3.9) 4 (1.0)
  Normal 134 (51.9) 24 (70.6) 110 (49.1) 138 (25.2) 40 (31.0) 98 (23.4)
  Overweight 71 (27.5) 5 (14.7) 66 (29.5) 151 (27.6) 44 (34.1) 107 (25.6)
  Obese 40 (15.5) 2 (5.9) 38 (17.0) 249 (45.5) 40 (31.0) 209 (50.0)

Minimum and maximum age (years) by sex and HIV status were as follows: female HIV+ (22–76), HIV− (21–79); male HIV+ (22–79), HIV− (21–79).

ART = anti-retroviral therapy; BMI = body mass index; HIV = human immunodeficiency virus; IQR = interquartile range; SD = Standard deviation; SES = socioeconomic status.

a

HIV+ versus HIV−.

b

AII males versus all females.