Table III.

Predictors of mortality using Cox-proportional hazards model stratified by site (adjusted for year of ART start)

Characteristic at ART start	Crude HR	95% CI	p-value	Adjusted HR Full model (N=2 449)	95% CI	p-value
WAZ			<0.001*			<0.001*
>−2	1			1
−3 - −2	1.93	1.29 - 2.89		1.13	0.69 - 1.87
< −3	5.23	3.84 - 7.12		2.44	1.65 - 3.59
Viral load (copies/ml)			<0.001*			0.010*
<100 000	1			1
100 000 to 1 million	1.75	1.24 - 2.45		1.68	1.02 - 2.76
>1 million	3.30	2.32 - 4.70		2.22	1.31 - 3.77
Severe immunosuppression (WHO definition)	4.23	2.55 - 7.00	<0.001	3.83	1.68 - 8.72	0.001
WHO stage 3 or 4 (v. 1 or 2)	3.01	2.00 - 4.54	<0.001	2.16	1.28 - 3.62	0.004
Age			<0.001*			0.002*
>3 yrs	1			1
1 - 3 yrs	1.31	0.98 - 1.74		1.17	0.76 - 1.84
<1 yr	3.38	2.65 - 4.31		2.00	1.30 - 3.07
ART commenced before 2006	1.28	1.02 - 1.60	0.036	1.68	1.18 - 2.39	0.004

p-values derived from likelihood ratio tests.