Logistic regression analysis of the association between previous abortion and the risk of preterm birth and neonatal death.

Abstract

a<p>Adjusted for maternal height, age, history of miscarriage, marital status, socioeconomic status, and year of delivery.</p>b<p>Expressed as 0, 1, 2, and 3 or more.</p>c<p><i>p</i>-Value for trend.</p