Skip to main content
. 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 A2.

OLS and 2SLS coefficients of the child development rate functiona

OLS 2SLS

Area instrument Area instrument with SES interaction Caregiver availability instruments
Parental/household investment 3.65*** (0.60) 11.89*** (3.63) 11.84*** (3.55) 9.10** (4.21)
African ancestry −5.27*** (1.27) −3.72** (1.70) −3.73** (1.71) −4.25** (1.76)
Native ancestry −4.20** (1.68) −3.91** (1.77) −3.91** (1.77) −4.01** (1.71)
Socioeconomic status 0.30 (0.33) −1.17* (0.63) −1.16* (0.62) −0.67 (0.75)
Maternal mental health problems −1.81 (1.26) −1.28 (1.41) −1.28 (1.41) −1.46 (1.35)
Maternal chronic physical health problems −1.68 (1.40) −2.47 (1.65) −2.46 (1.65) −2.20 (1.62)
Maternal smoking during prenatal period −1.58* (0.88) −1.93** (0.93) −1.93** (0.93) −1.81** (0.85)
Child has private insurance −1.57 (1.64) −1.82 (1.53) −1.82 (1.53) −1.74 (1.57)
Maternal age −0.62** (0.29) −0.92*** (0.34) −0.92*** (0.34) −0.82** (0.36)
Maternal age squared 0.01** (0.00) 0.02*** (0.01) 0.02*** (0.01) 0.01** (0.01)
Mother is single −3.56*** (1.08) −3.60*** (0.96) −3.60*** (0.96) −3.59*** (0.96)
Mother is in a stable relationship −1.39 (0.82) −0.75 (0.93) −0.76 (0.93) −0.97 (0.82)
Child’s age in months −0.33*** (0.09) −1.10*** (0.34) −1.09*** (0.34) −0.84** (0.41)
Male child −2.44*** (0.56) −1.93*** (0.60) −1.94*** (0.60) −2.11*** (0.63)
Number of child’s siblings −1.07*** (0.36) −0.88** (0.38) −0.89** (0.38) −0.95*** (0.36)
Disabled sibling −5.03** (2.41) −4.40** (1.90) −4.40** (1.90) −4.61** (1.97)
Number of other household members 0.45** (0.21) 0.38* (0.21) 0.38* (0.21) 0.40* (0.21)
Brazil −2.40 (2.42) 1.67 (3.67) 1.65 (3.65) 0.29 (3.74)
Bolivia −15.30 (9.93) −17.64** (7.18) −17.63** (7.22) −16.85** (8.03)
Chile −5.81* (3.19) −6.91*** (2.18) −6.91*** (2.18) −6.54*** (2.36)
Ecuador −5.94** (2.50) −2.76 (3.58) −2.78 (3.54) −3.84 (3.37)
Constant 20.08*** (5.08) 31.83*** (6.23) 31.76*** (6.22) 27.85*** (8.37)
*, ** and ***

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

Standard errors are in parentheses.

a

Derived from the Bayley Infant Neurodevelopment Screener. Copyright @ 2004. Harcourt Assessment Inc. Used with Permission. All rights Reserved.