Procedure
RECRUITMENT
Couples were approached by a research assistant during their routine antenatal checkups at 2 public health care institutions in Singapore and provided a summary of the purpose and details of the study. Interested couples were screened for eligibility, and their written informed consent was obtained. Subsequently, they completed a demographic form and a baseline questionnaire. The couples were then randomly allocated to the intervention or control group using an opaque envelope. Participants in the intervention group were given access to the SPA and contacted by their assigned peer volunteer shortly after recruitment. Where possible, peer volunteers were matched with the participants according to their demographic characteristics, such as age. Couples assigned to the control group received only the standard care provided by the hospital. After childbirth, couples from both groups were contacted to record their newborn’s date of birth and other birth details (eg, delivery method and any abnormalities with the newborn) so that their continuation in the project could be ensured based on the selection criteria. Parents also had to enter their birth details into the SPA so that they could receive specific and relevant information pertaining to the respective time points post partum.Postbaseline data were collected at the following time points for all parents by a different research assistant: (1) 1 month post partum, (2) 2 months post partum, (3) 4 months post partum, (4) 6 months post partum, (5) 9 months post partum, and (6) 12 months post partum. Links to web-based questionnaires were sent to the participants via WhatsApp at each time point, and home visits were scheduled during the sixth month and 12th month post partum to assess the development of their baby (results of child-related outcomes will be analyzed and published separately).