Descriptive statistics for infant health outcomes, pollution measures, and control variables are shown in Table 1.
The first four columns show means for all births in New Jersey, the sample of births with residential address that were successfully geocoded, the sample of births within 10 km of an ozone monitor, and the sample of births to smoking mothers within 10 km of an ozone monitor.
Because different monitors measure different pollutants, the subsamples used in the regression models are slightly different.
Of the 1.75 million births in New Jersey over our sample period, 36% were successfully geocoded and within 10 km of an ozone monitor,with roughly 10% of these births to mothers who smoked.
Column 5 restricts the sample further to children with a sibling within the sample, which is the final sample we use in our analysis.
Almost 20% of the total births are in the sibling sample and within 10 km of a monitor.
Finally, column 6 further restricts the final sample to the subset of mothers who smoked at both births, with the sample becoming much smaller but still sizable at 21,099 births.
Descriptive statistics for infant health outcomes, pollution measures, and control variables are shown in Table 1. The first four columns show means for all births in New Jersey, the sample of births with residential address that were successfully geocoded, the sample of births within 10 km of an ozone monitor, and the sample of births to smoking mothers within 10 km of an ozone monitor.Because different monitors measure different pollutants, the subsamples used in the regression models are slightly different.Of the 1.75 million births in New Jersey over our sample period, 36% were successfully geocoded and within 10 km of an ozone monitor,with roughly 10% of these births to mothers who smoked. Column 5 restricts the sample further to children with a sibling within the sample, which is the final sample we use in our analysis. Almost 20% of the total births are in the sibling sample and within 10 km of a monitor. Finally, column 6 further restricts the final sample to the subset of mothers who smoked at both births, with the sample becoming much smaller but still sizable at 21,099 births.
การแปล กรุณารอสักครู่..
