2.3. Sub-Study Data Collection
Data collected from medical records by site researchers included parity, HDP diagnosis, pregnancy, and birth details. Maternity databases were accessed by the research midwives at each study site to extract the required data. Lifestyle behaviours were assessed using the NSW Population Health Survey, which was developed by the NSW government to assess health behaviours over the phone (The BPFollowing completion of the pre-randomisation questionnaires (BP