Participants
fetal anomalies
RECRUITMENT, RECRUITMENT
Pregnant women in their third trimester (28–34 weeks) were recruited from eight hospital sites within the above four districts between February and July 2017. Potential participants were approached by research assistants with participant information sheet at the antenatal clinics and invited to participate in the study. Women were eligible to participate in the study if they were 16 years or above, between 28 and 34 weeks pregnant, capable to communicate in English, owned a mobile phone device and resided in the recruitment areas. Women were excluded if they had a severe medical condition, were expecting multiple births or with babies with known major fetal anomalies. Written consent was obtained from each participant. Participants were then required to fill in a registration form to provide their contact details for baseline data collection. The recruitment process was shown in Fig. 
Recruitment process