Table 4.
Nonlinear two-stage estimator: Second-stage estimates for HIV-negative men
| Divorced After 2004 | Number of Sexual Partners in Year of Follow-up (continuous) |
Increase in Condom Use With Spouse/Partner After 2004 |
||||
|---|---|---|---|---|---|---|
| (1) Probit |
(2) IV Probit |
(3) OLS |
(4) IV Regression |
(5) Probit |
(6) IV Probit |
|
| Learned HIV Status | 0.015 (0.013) | 0.025 (0.034) | −0.063 (0.052) | −0.030 (0.105) | 0.066* (0.033) | 0.033 (0.074) |
| Age in 2004 | −0.001* (0.001) | −0.002* (0.001) | −0.002 (0.002) | −0.002 (0.002) | −0.006** (0.001) | −0.006** (0.001) |
| Region (relative to Mchinji, central) | ||||||
| Rumphi, north | −0.003 (0.018) | −0.002 (0.019) | 0.188* (0.072) | 0.192** (0.072) | 0.103* (0.044) | 0.093* (0.039) |
| Balaka, south | 0.004 (0.016) | 0.004 (0.017) | 0.130† (0.067) | 0.130† (0.067) | 0.038 (0.036) |
0.037 (0.034) |
| Education (relative to no education) | ||||||
| Primary | 0.021 (0.016) | 0.025 (0.021) | −0.059 (0.092) | −0.057 (0.091) | −0.051 (0.050) | −0.052 (0.046) |
| Secondary | 0.020 (0.029) | 0.020 (0.024) | −0.116 (0.124) | −0.111 (0.125) | −0.027 (0.062) | −0.036 (0.070) |
| Observations | 775 | 775 | 750 | 750 | 595 | 595 |
Notes: Robust standard errors clustered by village are shown in parentheses. Marginal effects are reported for all binary outcomes; OLS coefficients are reported for the continuous outcome (Model 4). For Model 4, the value of Wooldridge’s robust score test of endogeneity is 0.159, with a p value of .6910.
†
p < .10;
*
p < .05;
**
p < .01