2.1. Study Design
This study employed a two-arm, parallel, non-blinded randomised controlled trial design, registered under NCT 04841265. Pregnant women were recruited from KK Women’s and Children’s Hospital between June 2021 and November 2022. This research adhered to the principles outlined in the Declaration of Helsinki and received ethics approval from the SingHealth Centralised Institutional Review Board (reference 2021/2055).