Validity Checks
Birth Weight | Asthma at Age 5 for Sample | ||
---|---|---|---|
Thursdays vs. Fridays | Excluding Inductions | ||
Bivariate probit | 0.023 | 0.036*** | |
(0.015) | (0.010) | ||
Mean of Y | 0.040 | 0.039 | |
Observations | 117,826 | 246,933 | |
Differences-in-differences | −5.416 | 0.017** | |
(7.617) | (0.007) | ||
Mean of Y | 3,566.117 | 0.044 | |
Observations | 645,134 | 440,291 |
↵Notes: Column 1 shows a placebo regression where the outcome is birth weight. Columns 2 and 3 gives the results from the bivariate probit (top) and the differences-in-differences (bottom) estimation of the impact of unplanned C-section on the probability of asthma diagnosis by age five restricting the sample to births taking place on Thursdays or Fridays (Column 2) or to noninduced births (Column 3). Specifications are as detailed in Sections III.B.1 and III.B.2, with the full set of fixed effects and controls. Robust standard errors (in parentheses) for bivariate probit results, and standard errors clustered at the family level in the differences-in-differences panel. Significance: *p < 0.10, **p < 0.05, ***p < 0.01.