. Author manuscript; available in PMC: 2014 Jul 7.

Published in final edited form as: Eur J Health Econ. 2013 Feb 2;15(1):41–55. doi: 10.1007/s10198-012-0447-y

Appendix Table A3.

Characteristics of respondents who do not accept any of the programs versus those who accept one or more of the proposed programs

	Sometime-takers^a			Never-takers^a
	Mean	Std.Dev.	N	Mean	Std.Dev.	N	t- test^*	Prob
Age (in years)	21.33	2.34	1558	21.71	2.21	143	−1.85	0.06
Has HIV or other sexually transmitted infection (STI)^b	0.09	0.29	1508	0.09	0.28	136	0.25	0.80
Any condom use at last sexual act^b,^c	0.88	0.32	1453	0.81	0.39	126	2.39	0.02
Male sex partners (last month)	3.25	6.40	1558	2.43	2.10	143	1.53	0.13
Last sex act with a partner whom respondent had just met^b	0.37	0.48	1455	0.33	0.47	129	0.98	0.33
Has a stable partner^b	0.36	0.48	1482	0.37	0.49	134	−0.22	0.83
Sex worker^b	0.05	0.23	1344	0.03	0.16	116	1.32	0.19
Student^b	0.47	0.50	1437	0.38	0.49	129	2.02	0.04
Highest level of education^d	3.04	0.64	1558	3.16	0.65	143	−2.19	0.03
Wealth index^e	−0.01	0.76	1434	0.05	0.85	131	−0.87	0.38

Notes: t-test of the differences in means between the two groups: “never-takers” vs. “sometime-takers.” Prob refers to the probability from the null hypothesis of “no difference.”

The sample of “never-takers” is that of respondents who said “no” to every one of the programs offered at all incentive offer levels; whereas “sometime-takers” are those who said yes to one or more of the programs being offered

Binary variable.

Any condom use refers to use of condoms by respondent or male partner during last anal sex.

Educational levels were: Primary =1; Middle School=2; High School=3; College=4; Graduate=5.

The wealth index was constructed using data on availability of: vehicle, own house, more than five rooms in the house, laptop and desktop computers, cable television, Internet access, and household help.