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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 A5.

IVQR coefficients of the child development rate function using the area instrumenta

Quantile
0.1 0.25 0.5 0.75 0.9
Parental/household investment 14.23*** (1.99) 13.47*** (1.87) 11.69*** (1.94) 7.19*** (2.23) 4.54** (2.28)
African ancestry −1.0 (3.75) −3.22 (2.11) −3.62** (1.74) −4.9*** (1.75) −3.31* (1.92)
Native ancestry −4.93*** (1.72) −3.22*** (1.21) −3.86*** (0.92) −3.42*** (0.77) −2.24*** (0.87)
Socioeconomic status −0.88 (0.8) −1.1* (0.62) −1.58*** (0.6) −0.37 (0.46) −0.14 (0.47)
Maternal mental health problems −5.72* (3.01) 0.09 (2.49) 0.48 (1.62) −0.67 (1.53) −2.47* (1.38)
Maternal chronic physical health problems −0.07 (2.51) −2.96 (2.22) −1.83 (2.04) −1.18 (2.01) −0.67 (1.71)
Maternal smoking during prenatal period −2.33 (2.79) −1.36 (1.56) −2.79** (1.38) −0.53 (1.39) −1.33 (1.3)
Child has private insurance −1.34 (1.91) −2.44 (1.53) −2.76** (1.12) −2.35** (1.02) −1.09 (1.01)
maternal age −0.99 (0.94) −1.91*** (0.6) −0.49 (0.46) −0.59 (0.48) −0.09 (0.41)
maternal age squared 0.02 (0.02) 0.03*** (0.01) 0.01 (0.01) 0.01 (0.01) 0.002 (0.01)
Mother is single −3.48* (2.07) −2.11 (1.73) −2.98** (1.37) −2.56** (1.15) −1.17 (1.2)
Mother is in a stable relationship −2.14 (1.93) −0.1 (1.3) −0.69 (1.08) −0.4 (0.93) 1.32 (0.99)
Child’s age in months −1.62*** (0.22) −1.48*** (0.21) −1.1*** (0.21) −0.5** (0.21) −0.18 (0.21)
Male child −4.34*** (1.41) −1.3 (1.03) −2.01** (0.83) −1.21* (0.72) −1.08 (0.75)
Number of child’s siblings −0.75 (0.79) −0.68 (0.5) −1.16*** (0.39) −0.35 (0.45) −0.16 (0.46)
Disabled sibling −0.56 (4.48) −3.65 (3.05) −5.22** (2.28) −5.97*** (2.29) −3.71 (2.27)
Number of other household members 0.26 (0.34) 0.39* (0.22) 0.24 (0.22) 0.28 (0.22) 0.17 (0.21)
Brazil 0.99 (3.35) 1.3 (1.95) −0.93 (1.67) 0.82 (1.71) 1.5 (1.71)
Bolivia −15.32*** (4.33) −16.6*** (2.28) −20.79*** (2.35) −12.19*** (3.14) −8.92*** (2.94)
Chile −8.22*** (2.04) −9.41*** (1.7) −7.89*** (1.25) −5.5*** (1.27) −4.06*** (1.5)
Ecuador −0.51 (2.84) −3.75** (1.71) −5.49*** (1.43) −4.36*** (1.33) −3.19*** (1.19)
Constant 19.53 (14.0) 40.28*** (9.42) 28.77*** (7.3) 30.59*** (6.99) 22.72*** (6.98)
*, ** 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.