. Author manuscript; available in PMC: 2012 Dec 5.

Published in final edited form as: J AIDS Clin Res. 2012 Sep 24;3(7):171. doi: 10.4172/2155-6113.1000171

Table 1.

Characteristics of study clinic pairs.

Study clinic pair	Duration of operation (Months)	Active patients	Patients on food aid (%)	Percent sampled		12 month survival^†	18 month survival^†
Study clinic pair	Duration of operation (Months)	Active patients	Patients on food aid (%)	Among clinic population	Among food assistance recipients	12 month survival^†	18 month survival^†
*Kanyama*	64	4296	1600 (37%)	1.2%	3.1%	0.94	0.93
Matero Reference	60	5355	n/a	0.93%	n/a	0.94	0.93
*Chawama*	41	3875	700 (18%)	1.3%	7.1%	0.91	0.90
Chipata	54	4543	n/a	1.1%	n/a	0.86	0.85
*George*	60	4097	680 (17%)	1.2%	7.4%	0.90	0.88
Chilenje	59	3273	n/a	1.5%	n/a	0.93	0.91
*Mtendere*	64	2896	708 (24%)	1.7%	7.1%	0.89	0.88
Bauleni	56	1400	n/a	3.6%	n/a	0.91	0.89

Food assistance clinics in bold italics; table stratified by study/control clinic pairs. The criteria for matching food assistance and control clinics were duration of operation, population of active patients, and 12 and 18 month survival. All clinics were public-sector facilities serving low-income areas of Lusaka, and similarity of the local environment was also considered in selecting final pairs.

Through August 2009

^†

Kaplan-Meier estimate of the proportion of patients surviving at 12 and 18 months post-ART initiation