preterm birth
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Women who delivered before 37 completed weeks' gestation during August, 2009 and July, 2010 in five Maternal and Child Health Hospital of Haidian District, Tongzhou District,Changping District, Daxing District and Shunyi District. Preterm delivery cases were identified by daily monitoring of all new deliveries at postpartum wards of participating hospitals.
Exclusion criteria
Exclusion criteria: 1. induced abortion due to fetal malformations, intrauterine fetal death and unintentional pregnancy; 2. refusal to participate in the study.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Rate of Premature delivery;Rate of live premature delivery; | — |
Countries
China