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Table 1 Baseline characteristics of 477 HIV-infected children

From: Impact of antiretroviral treatment on height evolution of HIV infected children

N (%) or median [IQR] All Height-for-age z-score at ART initiation p-value
<−3 SD −3 to < − 2 SD − 2 to < − 1 SD ≥ − 1 SD
All 477 116 (24%) 119 (25%) 119 (25%) 123 (26%)  
Male 206 (43%) 56 (48%) 55 (46%) 43 (36%) 52 (42%) 0.25a
Age (years) 6.2 [1.8–9.6] 7.7 [5.1–10.6] 7.4 [3.9–9.9] 5.6 [1.5–9.5] 2.0 [0.8–6.5] < 0.001b
ART regimen       < 0.001a
 Dual NRTI-based regimen 41 (9%) 1 (1%) 5 (4%) 15 (13%) 20 (16%)  
 PI-based regimen 57 (12%) 5 (4%) 8 (7%) 16 (13%) 28 (23%)  
 NNRTI-based regimen 379 (79%) 110 (95%) 106 (89%) 88 (74%) 75 (61%)  
CD4 percentage 9 [2–17] 5 [1–11] 4 [1–13] 11 [4–18] 16 [10–23] < 0.001b
HIV-RNA load (log10copies/mL) 5.17 [4.69–5.67] 5.16 [4.74–5.59] 5.20 [4.66–5.62] 5.13 [4.82–5.55] 5.22 [4.41–5.89] 0.98b
CDC HIV classification stage       < 0.001a
 N 87 (18%) 12 (10%) 15 (13%) 20 (17%) 40 (33%)  
 A 136 (28%) 25 (22%) 32 (27%) 41 (34%) 38 (31%)  
 B 132 (28%) 34 (29%) 32 (27%) 38 (32%) 28 (23%)  
 C 17 (26%) 45 (39%) 40 (33%) 20 (17%) 17 (23%)  
Weight-for-age z-score       < 0.001a
  < −3 SD 18 (4%) 9 (8%) 7 (6%) 1 (1%) 1 (1%)  
  − 3 to <−2 SD 59 (12%) 33 (28%) 12 (10%) 12 (10%) 2 (2%)  
  − 2 to <−1 SD 196 (41%) 66 (57%) 68 (57%) 46 (39%) 16 (13%)  
  ≥ 1 SD 204 (43%) 8 (7%) 32 (27%) 60 (50%) 104 (84%)  
Weight-for-height z-score       0.72a
  < −3 SD 5 (1%) 2 (2%) 2 (2%) 1 (1%)  
 – 3 to <−2 SD 27 (6%) 7 (6%) 9 (7%) 6 (5%) 5 (4%)  
 – 2 to <−1 SD 95 (20%) 27 (23%) 25 (21%) 22 (18%) 21 (17%)  
  ≥ −1 SD 350 (73%) 80 (69%) 83 (70%) 90 (76%) 97 (79%)  
  1. CDC Centers for Disease Control and Prevention, IQR interquartile range, N number of children in category
  2. a Chi-square test
  3. b Kruskal-Wallis test