Investigating Factors Associated with the Development of Postnatal Depression After Cesarean Delivery: A Validation Cohort Study.

"Disclosure The authors report no conflicts of interest in this work."

"This study was supported by the SingHealth Duke-NUS Anesthesiology and Perioperative Sciences Academic Clinical Program Pilot Research Grant (reference number: ANAESPRG18/02). DJA Tan received support from the SingHealth Residency Supplementary Residency Training Fund (SRTF). SYX Chow and BL Sng are awarded the Academic Medicine - Enhancing Training, Healthcare, Outcomes and Standards (AM-ETHOS) Duke-NUS Medical Student Research Fellowship Award year 2023–24 (ref no. AM-ETHOS01/FY2023/23-A23)."

"We conducted a prospective cohort study on parturients undergoing elective CD under neuraxial anesthesia at KK Women’s and Children’s Hospital, Singapore, between May 2018 and Apr 2019 (training cohort), and Oct 2021 and Oct 2022 (validation cohort). This study was approved by the SingHealth Centralized Institutional Review Board (reference number: CIRB 2017/2381) and registered at Clinicaltrials.gov (NCT03645239). The study methodologies were developed in accordance with the Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) standards and were based on our previous study. Ethics Approval and Informed Consent: This study was approved by the SingHealth Centralized Institutional Review Board (SingHealth CIRB 2017/2381) and registered on ClinicalTrials.gov (NCT03645239) on 22 Jun 2017. The authors declare that all recruited patients provided informed consent and that this work was conducted in accordance with the Declaration of Helsinki."