Table 2.

Subdistribution hazard ratios of progression from competing risk models.

Characteristics	Univariate HRsd (95% CI)	P-value	Multivariate aHRsd (95% CI)	P-value
Country		<0.001		<0.001
Uganda	1		1
Botswana	1.44 (1.36 – 1.52)		2.00 (1.91 – 2.10)
Sex
Female	1	<0.001
Male	1.19 (1.14 – 1.24)
Age at Enrollment (per 1-year increase)	0.20 (0.18 – 0.22)	0.011	0.18 (0.16 – 0.20)	0.001
Year Birth
Before 2004	1	<0.001
After 2004	3.45 (3.22 – 3.70)
Year of enrollment				<0.001
Before 2006	1		1
2006–2009	0.96 (0.91 – 1.01)	0.14	1.14 (1.07 – 1.22)
After 2010	1.19 (1.12 – 1.26)	<0.001	1.13 (1.02 – 1.24)
HIV RNA load, (log10 copies/μl)a	1.89 (1.52 – 2.30)	<0.001
Weight-for-age Z-score (per Z increase)	0.68 (0.64 – 0.72)	0.031	0.77 (0.68 – 0.87)	<0.001
−1.75	1		1
−3.75	1.24 (1.16 – 1.34)		1.42 (1.32 – 1.53)
Height-for-age z-score (per Z increase)	0.86 (0.83 – 0.88)	<0.001	1.00 (0.92 – 1.08)	0.91
−1.75	1		1
−3.75	1.22 (1.17 – 1.27)		1.03 (0.96–1.09)
BMI-for-age z-score (per Z increase)b	0.79 (0.76 – 0.82)	<0.001
−0.85	1
−2.85	1.32 (1.28 – 1.38)

Abbreviations: aHR_sd, adjusted subdistribution hazard ratio; BMI, body mass index; CI, confidence interval.

N = 10078

^an = 847

^bBMI-for-age was not included in any model with weight-for-age or height-for-age.