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. Author manuscript; available in PMC: 2018 Jan 1.
Published in final edited form as: J Labor Econ. 2017;35(1):18977. doi: 10.3386/w18977

Table 6.

Effect of Decision Making and Surgical Skill on Child Health Outcomes

C-Section Risk (Ordinary Least Squares)
C-Section Risk (Two-Stage Least Squares)
All Low High All Low High
Dependent variable = any bad infant outcome:
 Decision making −.005  
(.001)
−.005  
(.001)
−.006  
(.001)
−.010  
(.007)
−.009  
(.007)
−.010  
(.007)
 Procedural skill difference −.006  
(.001)
−.004  
(.001)
−.008  
(.002)
−.031  
(.009)
−.029  
(.009)
−.032  
(.009)
R2/x2 .013 .010 .017 17,881 1,126 2,044
Dependent variable = fetal distress:
 Decision making −.003  
(.001)
−.004  
(.001)
−.003  
(.001)
−.012  
(.006)
−.012  
(.006)
−.012  
(.006)
 Procedural skill difference −.003  
(.001)
−.003  
(.000)
−.004  
(.001)
−.024  
(.006)
−.025  
(.006)
−.023  
(.006)
R2/x2 .013 .009 .011 3,964 3,997 2,338
Dependent variable = birth injury:
 Decision making .0001  
(.000)
.0001  
(.000)
.0001  
(.000)
.004  
(.003) 
.003  
(.002) 
.005  
(.004) 
 Procedural skill difference −.001  
(.001)
−.001  
(.001)
−.002  
(.001)
−.009  
(.004) 
−.006  
(.003) 
−.011  
(.006) 
R2/x2 .003 .002 .004 1,023   380   603  
Dependent variable = neonatal death:
 Decision making −.002  
(.000)
−.001  
(.000)
−.002  
(.000)
−.001  
(.001) 
−.0003  
(.000) 
−.002  
(.001) 
 Procedural skill difference −.001  
(.000)
−.0003  
(.000)
−.002  
(.000)
.001  
(.001) 
.001  
(.000) 
.001  
(.001) 
R2/x2 .007 .004 .010 2,231 1,438 2,015
Observations 968,748 469,170 499,578 968,748 469,170 499,578

Note.—Standard errors (in parentheses) are clustered at the 3-digit zip code level. Regressions also include market price, estimated C-section risk, indicators for African American, Hispanics, race missing, education (less than high school, high school, some college, missing), married, married missing, Medicaid, Medicaid missing, teen mom, 25–34, 35 plus, smoking, smoking missing, male child, parity 2, parity 3, parity 4 plus, parity missing, month and year of birth indicators, indicators for 3-digit zip code, and an indicator for whether the birth was on a week day. R-squared is shown for ordinary least squares and chi-squared is shown for two-stage least squares.