| Weight for age z-scores a | Height for age z-scores | ||
---|---|---|---|---|
 | Coefficient (SE) | p-value/p-value interaction | Coefficient (SE) | p-value/p-value interaction |
Crude model | Â | Â | Â | Â |
   Time (per month) on ART |  |  | 0.053 (0.012) | <0.0001 |
0-6 months | 0.12 (0.02) | <0.0001 | Â | Â |
>6 months | -0.003 (0.012) | 0.81 | Â | Â |
Adjusted model | Â | Â | Â | Â |
   Time (per month) on ART |  |  | 0.10 (0.01) | <0.0001 |
0-6 months | 0.12 (0.02) | <0.0001 | Â | Â |
>6 months | 0.003 (0.01) | 0.72 | Â | Â |
   Female | 0.48 (0.21) | 0.02 | 0.60 (0.29) | 0.04 |
   Severe immunodeficiencyb, c | -0.35 (0.21) | 0.09 | -0.55 (0.29) | 0.06 |
   Age (years)c |  |  |  |  |
0-1.9 | ref | Â | ref | Â |
2-4.9 | -0.55 (0.26) | 0.04 | 0.49 (0.41) | 0.23 |
≥5 | -0.52 (0.27) | 0.05 | 1.16 (0.36) | 0.001 |
   Double orphanc | -0.70 (0.29) | 0.02 |  |  |
   Underweightc |  |  | -1.68 (0.31) | <0.0001 |
Stratified by WAZ at ART initiation d: | Â | Â | Â | Â |
   WAZ ≥-2 (ref) |  |  |  |  |
0-6 months (per month) | 0.04 (0.02) | 0.08 | Â | Â |
>6 months (per month) | 0.04 (0.01) | 0.005 | Â | Â |
   WAZ <-2 (underweight) |  |  |  |  |
0-6 months (per month) | 0.19 (0.03) | <0.0001/<0.0001 | Â | Â |
>6 months (per month) | -0.01 (0.01) | 0.21/0.003 | Â | Â |
Stratified by age (years) at ART initiation d: | Â | Â | Â | Â |
   0-1.9 (ref): time (per month) |  |  | 0.15 (0.025) | <0.0001 |
   2-4.9: time (per month) |  |  | 0.11 (0.020) | <0.0001/0.18 |
   ≥5: time (per month) |  |  | 0.049 (0.014) | <0.0001/<0.0001 |