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. Author manuscript; available in PMC: 2012 Jul 1.
Published in final edited form as: J Hum Cap. 2011 Summer;5(2):207–254. doi: 10.1086/660885

Table 3.

Coefficients of Area-Level Instrument Regressions on Other Area-level Characteristics

Other-Area Characteristics Smoking Rate Average number of cigarettes
Cesarean delivery rate −0.119 (0.097) −0.763 (0.641)
Average number of prenatal visits .008 (.008) 0.052 (0.110)
Average number of weeks delayed before initiating prenatal care −0.002 (.006) −0.041 (0.047)
Average number of ultrasounds during pregnancy 0.006 (0.014) 0.133 (0.160)
Medication use rate during pregnancy 0.034 (0.065) −0.174 (0.474)
Immunization rate during pregnancy −0.136* (0.065) −0.424 (0.572)

Note: The table reports the coefficients of the regression of the area-level instruments on the other area-level characteristics, one at a time, controlling for country fixed effects (which are suppressed in the table). The regressions are estimated using OLS. Standard errors are in parentheses.

*, ** and ***

indicate p <0.1, <0.05 and <0.01, respectively.