Table 2. Characteristics of 20 studies included in the meta-analysis of the relationship between baseline CD4 count and first year mortality on antiretroviral therapy.

	Study, Year#	Country	N	MedianBaselineCD4*	Number ofCD4 strata	LowestCD4Strata	HighestCD4Strata	Total % Mortality	Total Loss to Follow up**	Reported Follow up Time (months)
1	Barth, 2008	South Africa	606	67	4	0–50	>200	18	15	12
2	Bisson, 2008	Botswana	410	81	0	N/A	N/A	8	21	11
3	Bourgeois, 2005	Cameroon	109	150	2	0–50	>50	8.3	2.8	16
4	Brinkhof, 2009	Multiple	10714	87–131	5	0–25	>200	8.8	7.1–31.7	24
5	Bussman, 2008	Botswana	633	67	2	0–50	>50	8.9	17.3	12
6	Calmy, 2006	Multiple	6961	89	5	0–15	>200	10	4.8	24
7	Cornell, 2009	South Africa	2023	102	4	0–50	>150	4.9	6.2	12
8	Culbert, 2007	Congo, D.R.	494	124	0	N/A	N/A	5.4	7.9	12
9	Etard, 2006	Senegal	404	128	3	0–50	>200	11.7	1.7	12
10	Geng, 2008	Uganda	3628	95	0	N/A	N/A	1.3	23	11
11	Lowrance, 2009	Rwanda	3194	141	0	N/A	N/A	4.6	4.9	12
12	Marazzi, 2008	Multiple	3456	166*	3	0–50	>500	7.5	1.2	12
13	Mzileni, 2008	South Africa	2380	–	4	0–50	151–200	7.8	14.1	30
14	Mutevedzi, 2010	South Africa	5179	116	0	N/A	N/A	3.7	10.9	12
15	Ojikutu, 2008	South Africa	298	65	4	0–20	>100	16	7.4	8
16	Seyler, 2003	Ivory Coast	101	135	2	0–50	>50	9.9	0	24
17	Stringer, 2006	Zambia	11776	143	4	0–50	>350	7.1	2	18
18	Toure, 2008	Ivory Coast	10211	123	4	0–50	>150	15	19	32
19	Weidle, 2002	Uganda	342	73	2	0–50	>50	16	24	12
20	Zachariah, 2006	Malawi	1507	123	2	0–50	>50	10.3	11.7	12

^#Full citations given in Appendix S2 in File S1.

^*Denotes mean not median.