Medical Burden Associated with Preterm Labor and Preterm Birth in Kaiser Northern California

The aims of this study are to: 1) Characterize women in the Northern California Kaiser Permanente Medical Care Program (KPMCP) who received a diagnosis of preterm labor (PTL) between January 2001 and December 2010 and compare them to women without PTL who deliver at term. 2) Compare maternal and infant outcomes of pregnancies complicated by preterm labor versus those unaffected by PTL. 3) Evaluate the incremental cost of preterm delivery by week of gestational age. 4) Compare the maternal costs of pregnancies with PTL and without PTL.

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