Table 1.

Baseline demographic and medical characteristics of 1,391 children starting antiretroviral therapy in Lusaka, Zambia (May 2004 to June 2006)

	0 to < 18 months		18 to < 60 months		≥ 60 months		Overall
	N=113		N=425		N=853		N=1391
	n	Value	n	Value	n	Value	n	Value
Sex, n (%)
Female	47	41.6%	183	43.1%	401	47.0%	631	45.4%
Male	66	58.4%	242	56.9%	452	53.0%	760	54.6%
Weight-for-age z score, mean (sd)**	103	−2.3(2.3)	412	−2.1(1.7)	804	−2.3(1.6)	1319	−2.2(1.7)
> −1	26	25.2%	106	25.7%	159	19.8%	291	22.1%
> –2 through –1	15	14.6%	79	19.2%	199	24.8%	293	22.2%
> –3 through –2	22	21.4%	86	20.9%	191	23.8%	299	22.7%
≤−3	40	38.8%	141	34.2%	255	31.7%	436	33.1%
CD4+ cell percentage at ART initiation, mean (sd)	95	15.9(8.4)	392	14.0(8.2)	744	12.2(8.1)	1231	13.0(8.2)
≥20.0	24	25.3%	79	20.2%	102	13.7%	205	16.6%
10.0% - 19.9%	50	52.6%	175	44.6%	327	44.0%	552	44.8%
< 10.0%	21	22.1%	138	35.2%	315	42.3%	474	38.5%
Hemoglobin, mean (sd), g/dL	95	9.4(2.0)	396	9.6(2.3)	770	10.3(2.3)	1261	10.0(2.3)
≥ 8.0 g/dL	79	83.2%	326	82.3%	669	86.9%	1074	85.2%
< 8.0 g/dL	16	16.8%	70	17.7%	101	13.1%	187	14.8%
WHO stage at ART initiation, n (%)
I or II	14	12.4%	96	22.6%	248	29.2%	358	25.8%
III or IV	99	87.6%	328	77.4%	601	70.8%	1028	74.2%