Table 7

Regression model for birth weight (F=40.1, p<0.0001, r2=0.17)

β coefficient p value
Intercept3149.20.0001
Parity46.20.0001
Gestational age50.30.0001
Birth cohort7-150 and site=home−14.90.38
Birth cohort7-150and site=hospital106.40.0001
  • 7-150 Where birth cohort 0=1914, 1=1918, 2=1922, 3=1930.