Full Sample | Follow-up Sample | Full Sample | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
2–6 Months after VCT, 2005 Follow-up Survey |
2 Years after VCT, 2006 Follow-up Survey |
2 Years after VCT, 2006 Follow-up Survey |
||||||||||
Dependent Variable: | IV No Likelihood |
IV Ordered Probit Likelihood (1–3) |
IV No Likelihood |
IV Ordered Probit Likelihood (1–3) |
IV No Likelihood |
IV Ordered Probit Likelihood (1–3) |
||||||
DKs = Some Likelihood |
DKs = Missing |
DKs = Some Likelihood |
DKs = Missing |
Ks = Some Likelihood |
DKs = Missing |
DKs = Some Likelihood |
DKs = Missing |
DKs = Some Likelihood |
DKs = Missing |
DKs = Some Likelihood |
DKs = Missing |
|
(1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) | (11) | (12) | |
Got Results | 0.304*** | 0.086 | 0.263*** | 0.050 | 0.014 | 0.009 | 0.001 | −0.003 | −0.091** | −0.096** | −0.103** | −0.107** |
[0.054] | [0.065] | [0.071] | [0.068] | [0.053] | [0.052] | [0.056] | [0.055] | [0.044] | [0.044] | [0.043] | [ 0.042] | |
Got Results * HIV Positive | −0.860** | −0.929** | −0.770*** | −0.884*** | 0.130 | 0.140 | −0.147 | −0.135 | 0.141 | 0.145 | 0.021 | 0.023 |
[0.332] | [0.412] | [0.102] | [0.144] | [0.300] | [0.300] | [0.297] | [0.290] | [0.227] | [0.226] | [0.202] | [0.196] | |
HIV Positive | 0.359 | 0.358 | 0.172 | 0.091 | −0.337 | −0.349 | −0.162 | −0.171 | −0.413** | −0.421** | −0.341** | −0.346*** |
[0.242] | [0.284] | [0.120] | [0.059] | [0.230] | [0.228] | [0.192] | [0.189] | [0.164] | [0.164] | [0.148] | [0.147] | |
Observations | 1,098 | 924 | 1098 | 924 | 1,098 | 1,091 | 1098 | 1091 | 1,813 | 1,802 | 1813 | 1802 |
R-squared | 0.182 | 0.017 | -- | -- | 0.054 | 0.054 | -- | -- | 0.039 | 0.039 | -- | -- |
F-test (Got + Got*HIV Positive = 0) |
0.11 | 0.05 | 0.15 | 0.12 | 0.83 | 0.83 | 0.60 | 0.61 | 0.83 | 0.83 | 0.68 | 0.68 |
Mean of Dependent Variable | 0.76 | 0.90 | 1.26 | 1.12 | 0.71 | 0.72 | 1.39 | 1.39 | 0.72 | 0.72 | 1.40 | 1.40 |
Notes: Each column represents an IV regression where “Got Results” and “Got Results* HIV Positive” are instrumented with having any incentive, the amount of the incentive, distance from the HIV results center, as well as each of these interacted by HIV Positive. Standard errors are clustered by village. Also includes age and age squared, a simulated average distance to the VCT tent, a gender dummy, log expenditures at baseline, years of education, a dummy for being married, and district fixed effects. Columsn 3,4, 7, 8, 11, and 12 present IV ordered probits where “don't know” responses are coded as either some likelihood or are missing values, as indicated above. Coefficients are marginal effects reported as the probility of believing there is no likelihood of infection. Robust standard errors in brackets.
significant at 10%;
significant at 5%;
significant at 1%