Files and links (1)
Published (Version of Record)CC BY-NC-ND V4.0, Open Access
Journal article
Early mortality among aboriginal and non-aboriginal women who had a preterm birth in Western Australia: A population-based cohort study
Paediatric and perinatal epidemiology, Vol.37(1), pp.31-44
2023
PMID: 36331146
Abstract
Background
Having a preterm (<37 weeks' gestation) birth may increase a woman's risk of early mortality. Aboriginal and Torres Strait Islander (hereafter Aboriginal) women have higher preterm birth and mortality rates compared with other Australian women.
Objectives
We investigated whether a history of having a preterm birth was associated with early mortality in women and whether these associations differed by Aboriginal status.
Methods
This retrospective cohort study used population-based perinatal records of women who had a singleton birth between 1980 and 2015 in Western Australia linked to Death Registry data until June 2018. The primary and secondary outcomes were all-cause and cause-specific mortality respectively. After stratification by Aboriginal status, rate differences were calculated, and Cox proportional hazard regression was used to estimate adjusted hazard ratios (HR) and 95% confidence intervals (CI) for all-cause and cause-specific mortality.
Results
There were 20,244 Aboriginal mothers (1349 deaths) and 457,357 non-Aboriginal mothers (7646 deaths) with 8.6 million person-years of follow-up. The all-cause mortality rates for Aboriginal mothers who had preterm births and term births were 529.5 and 344.0 (rate difference 185.5, 95% CI 135.5, 238.5) per 100,000 person-years respectively. Among non-Aboriginal mothers, the corresponding figures were 125.5 and 88.6 (rate difference 37.0, 95% CI 29.4, 44.9) per 100,000 person-years. The HR for all-cause mortality for Aboriginal and non-Aboriginal mothers associated with preterm birth were 1.48 (95% CI 1.32, 1.66) and 1.35 (95% CI 1.26, 1.44), respectively, compared with term birth. Compared with mothers who had term births, mothers of preterm births had higher relative risks of mortality from diabetes, cardiovascular, digestive and external causes.
Conclusions
Both Aboriginal and non-Aboriginal women who had a preterm birth had a moderately increased risk of mortality up to 38 years after the birth, reinforcing the importance of primary prevention and ongoing screening.
Details
- Title
- Early mortality among aboriginal and non-aboriginal women who had a preterm birth in Western Australia: A population-based cohort study
- Authors/Creators
- Helen D Bailey - Curtin UniversityCaitlin Gray - The Kids Research Institute AustraliaAkilew A Adane - The Kids Research Institute AustraliaNatalie A Strobel - Edith Cowan UniversityScott W White - King Edward Memorial HospitalRhonda Marriott - Murdoch UniversityGizachew A Tessema - Curtin UniversityCarrington C J Shepherd - Curtin UniversityMary Sharp - The Kids Research Institute Australia
- Publication Details
- Paediatric and perinatal epidemiology, Vol.37(1), pp.31-44
- Publisher
- John Wiley & Sons Ltd.
- Grant note
- National Health and Medical Research Council
- Identifiers
- 991005571166007891
- Copyright
- © 2022 The Authors
- Murdoch Affiliation
- Ngangk Yira Institute for Change
- Language
- English
- Resource Type
- Journal article
UN Sustainable Development Goals (SDGs)
This output has contributed to the advancement of the following goals:
Source: InCites
Metrics
44 File views/ downloads
111 Record Views
InCites Highlights
These are selected metrics from InCites Benchmarking & Analytics tool, related to this output
- Collaboration types
- Domestic collaboration
- Citation topics
- 1 Clinical & Life Sciences
- 1.72 Obstetrics & Gynecology
- 1.72.531 Preeclampsia Factors
- Web Of Science research areas
- Obstetrics & Gynecology
- Pediatrics
- Public, Environmental & Occupational Health
- ESI research areas
- Clinical Medicine