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. Author manuscript; available in PMC: 2013 Oct 4.
Published in final edited form as: Forum Health Econ Policy. 2012 Oct 4;14(2):11. doi: 10.2202/1558-9544.1237

Table A3.

First stage coefficients of the 2SLS model for the child development rate

Area instrument Area instrument with SES interaction Caregiver availability instruments
Area-level investment 0.717*** (0.047) 0.708*** (0.048)
Area-level investment × socioeconomic status 0.059* (0.032)
Primary caregivers-Grandparents 0.100 (0.076)
Primary caregivers-Other relatives 0.413*** (0.112)
African ancestry −0.191** (0.072) −0.203*** (0.068) −0.185* (0.095)
Native ancestry −0.050 (0.053) −0.049 (0.053) −0.035 (0.091)
Socioeconomic status 0.133*** (0.019) 0.136*** (0.018) 0.170*** (0.021)
Maternal mental health problems −0.110* (0.063) −0.105 (0.063) −0.070 (0.081)
Maternal chronic physical health problems 0.092 (0.085) 0.091 (0.086) 0.094 (0.098)
Maternal smoking during prenatal period 0.011 (0.063) 0.008 (0.063) 0.031 (0.068)
Child has private insurance 0.026 (0.063) 0.019 (0.062) 0.034 (0.076)
Maternal age 0.036* (0.020) 0.036* (0.020) 0.031 (0.019)
Maternal age squared −0.001 (0.0003) −0.001 (0.0003) −0.0004 (0.0003)
Mother is single 0.004 (0.059) 0.008 (0.059) −0.037 (0.077)
Mother is in a stable relationship −0.036 (0.046) −0.039 (0.045) −0.081* (0.045)
Child’s age in months 0.094*** (0.006) 0.094*** (0.006) 0.093*** (0.006)
Male child −0.067* (0.036) −0.067* (0.036) −0.060 (0.037)
Number of child’s siblings −0.011 (0.022) −0.011 (0.022) −0.013 (0.022)
Disabled sibling −0.038 (0.130) −0.037 (0.131) −0.070 (0.145)
Number of other household members 0.007 (0.010) 0.006 (0.009) 0.002 (0.010)
Brazil −0.086 (0.064) −0.090 (0.060) −0.485*** (0.123)
Bolivia 0.041 (0.097) 0.022 (0.088) 0.299 (0.346)
Chile 0.002 (0.064) −0.008 (0.062) 0.097 (0.228)
Ecuador −0.089 (0.059) −0.108* (0.058) −0.410*** (0.107)
Constant −1.531*** (0.288) −1.511*** (0.290) −1.350*** (0.274)
*, ** and ***

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

Standard errors are in parentheses.