Table 3.
Nonlinear two-stage estimator: Second-stage estimates for HIV-negative women
| 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 | −0.028† | −0.017 | 0.055* | 0.075* | 0.033 | 0.162* |
| (0.015) | (0.030) | (0.023) | (0.037) | (0.028) | (0.071) | |
| Age in 2004 | −0.001 | −0.001 | −0.002 | −0.002† | −0.006** | −0.006** |
| (0.001) | (0.001) | (0.001) | (0.001) | (0.001) | (0.001) | |
| Region (relative to Mchinji, central) | ||||||
| Rumphi, north | −0.020 | −0.022 | −0.004 | −0.002 | 0.132** | 0.128** |
| (0.014) | (0.018) | (0.020) | (0.019) | (0.042) | (0.038) | |
| Balaka, south | 0.040** | 0.039** | 0.004 | 0.004 | 0.055 | 0.048 |
| (0.014) | (0.013) | (0.024) | (0.023) | (0.034) | (0.033) | |
| Education (relative to no education) | ||||||
| Primary | 0.011 | 0.014 | 0.026 | 0.028 | 0.041 | 0.054† |
| (0.013) | (0.015) | (0.024) | (0.024) | (0.030) | (0.032) | |
| Secondary | 0.047 | 0.040 | 0.046 | 0.050 | 0.112 | 0.124* |
| (0.046) | (0.029) | (0.036) | (0.036) | (0.078) | (0.062) | |
| Observations | 1,008 | 1,008 | 1,004 | 1,004 | 758 | 758 |
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 0.505, with a p value of .4787.
†
p < .10;
*
p < .05;
**
p < .01