Evaluation of cesarean delivery rates and factors associated with cesarean delivery among women enrolled in a pregnancy cohort study at two tertiary hospitals in Thailand.

"Declarations Ethics approval and consent to participateThe study protocol was reviewed and approved by the ethical committees of the Thai MOPH and study hospitals, and by the Institutional Review Board (IRB) of Abt Associates (Massachusetts, USA). The IRB of the U.S. Centers for Disease Control and Prevention (Georgia, USA) relied on the determination of the Abt Associates’ IRB. Written informed consent was obtained from all study participants. Consent for publicationNot applicable. Competing interestsThe authors declare no competing interests. Competing interests The authors declare no competing interests."

"Funding This study was supported by the U.S. Centers for Disease Control and Prevention through Cooperative Agreement 1U01GH002084 with Thailand Ministry of Public Health."