ArticleThe Australian & New Zealand journal of obstetrics & gynaecology2025
Examining Interpregnancy Weight Change Across a Birthing Population in Aotearoa, New Zealand.
Article in The Australian & New Zealand journal of obstetrics & gynaecology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
introductionInter-pregnancy weight change (IPWC) has been linked to adverse outcomes in subsequent pregnancies. No studies have examined IPWC in Aotearoa New Zealand (AoNZ). This study aims to 1. Examine the distribution of IPWC in a birthing population in AoNZ and 2. Investigate IPWC across priority populations identified by the Perinatal and Maternal Mortality Review Committee (PMMRC).
methodsThis retrospective cohort study in AoNZ, included people who birthed their first two singleton pregnancies between 2016 and 2021. IPWC was calculated as the difference in pre-pregnancy body mass index (BMI) and divided into four categories: 1. Interpregnancy weight loss (IPWL) (BMI reduction of > 1 kg/m
resultsThe study cohort (n = 856) had a mean IPWC of 1.13 kg/m DISCUSSION: 22.4% of the cohort experienced IPWG at a level associated with adverse perinatal outcomes. Elevated rates of increased IPWG were observed in priority birthing populations, consistent with populations highlighted by the PMMRC. Further research is required to understand the impact of IPWC in AoNZ birthing populations.
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