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. Author manuscript; available in PMC: 2014 Jul 23.
Published in final edited form as: Am Econ Rev. 2013 May;103(3):439–444. doi: 10.1257/aer.103.3.439

Table 1.

Sample Characteristics, Balancing Tests, and Attrition

Individual-level sample
means
Village-level
sample means


Mean
(1)
SD
(2)
Mean
(3)
SD
(4)

Panel A. Incentives, distance, and learning HIV results
Received a non-zero incentive 0.782 0.413 0.763 0.159
Amount of incentive (in USD) 1.016 0.897 0.959 0.255
Distance from HIV results center 1.993 1.242 1.864 1.066
Learned HIV results 0.729 0.444 0.723 0.186
Village size 40.684 33.999
N = 1,995 N = 117
Individual-level
sample means
P-value on joint F-test


Mean
(1)
SD
(2)
Balance
(3)
Attrition
(4)

Panel B. Sample means, balance, and attrition
Male 0.455 0.498 0.155 0.010
Age 34.270 13.737 0.155 0.314
Married 0.745 0.436 0.508 0.760
Years of education 3.494 3.528 0.000 0.729
People you know ever died of HIV 6.372 11.508 0.000 0.733
People you know died of HIV in last year 2.194 2.941 0.000 0.071
Relatives others say died of HIV 0.957 1.637 0.013 0.217
Multiple sexual partners in last year 0.071 0.257 0.648 0.885
Current condom use with spouse 0.114 0.318 0.003 0.283
Recent condom use with spouse/partners 0.126 0.332 0.003 0.373
N = 995 N = 1,995 N = 2,654

Notes: The sample of 2,654 individuals consists of those who accepted an HIV test, did not test as indeterminant and was assigned financial incentives to learn HIV results in 2004. The sample of 1995 individual consists of those who were also surveyed in 2006. Panel A presents individual and village-level sample means. Village-level sample means in panel A, columns 3 and 4 are constructed from the sample of 2,654 individuals not conditioning on being surveyed in 2006. Panel B presents individual sample means of baseline variables in columns 1 and 2. Each row in panel B, column 3 presents p-values testing the joint significance of each coefficient estimated from separate regressions of the baseline variable on “village average offered any incentive,” “village average incentive amount,” and “village average distance from the HIV results center.” Columns 4 presents the p-value of the joint F-test of significance of each baseline variable interacted with “village average offered any incentive”, “village average incentive amount,” and “village average distance from the HIV results center” in a regression of being interviewed in 2006 on these interactions, the baseline variable, and the incentive and distance variables at the village-level. Columns 3 and 4 in panel B are weighted according to 2004 village size.