borderline significantP <.0001
The following variables were significant or borderline significant (BS): maternal age ( P =BS), parity ( P <.0001), height ( P <.01), smoking (<0.05), and induction of labor ( P <.0001).
The following variables were significant or borderline significant (BS): maternal age ( P =BS), parity ( P <.0001), height ( P <.01), smoking (<0.05), and induction of labor ( P <.0001).
A difference in the AIC of 2 units indicated significant differences, while a difference of 2 to 4 units indicated highly significant differences.