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. Author manuscript; available in PMC: 2017 Mar 24.
Published in final edited form as: Early Hum Dev. 2013 Dec 10;90(1):15–20. doi: 10.1016/j.earlhumdev.2013.11.006

Table 4.

Results of ordered polytomous regressiona for gestational ageb in 691 pregnancies in South Korea.

Unadjusted Adjusted
Prenatal depressionc 0.617 (0.446–0.855) 0.658 (0.467–0.926)
Maternal smoking history – 0.862 (0.498–1.489)
Maternal drinking during pregnancy – 0.711 (0.449–1.125)
Female sex – 1.406 (1.060–1.865)
Cesarean section – 0.414 (0.303–0.564)

Data are odds ratio (95% confidence interval). Adjusted model is adjusted for maternal smoking history, maternal drinking during pregnancy, female sex of the offspring, and delivery by Cesarean section. Dashes indicate that the variable was not included in the model.

a

Cumulative logit model.

b

Gestational age was analyzed using a cumulative logit model with the outcome defined as 37, 38, 39, 40, and 41 weeks gestation (reference group 41 weeks).

c

Prenatal depression was defined as a Center for Epidemiologic Studies Depression Scale-10 score ≥10 in the third trimester.