ArticleScientific reports2022
Advanced maternal age and severe maternal morbidity in South Korea: a population-based cohort study.
Article in Scientific reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 12 citations in OpenAlex.
- Severe maternal morbidity in patients of advanced maternal age with and without metabolic syndrome.Archives of gynecology and obstetrics · 2026Article
- A Spatial Analytic Approach to Maternal Health Following Hurricane Florence (2018).Maternal and child health journal · 2026Article
- Obstetric complications and socio-demographic characteristics associated with severe maternal morbidity at Mbeya Zonal Referral Hospital, Tanzania: a case-control study.Frontiers in global women's health · 2026Article
- Postponed childbearing: a cross-sectional study of differences between subjective and objective factors.Annals of medicine · 2025Article
- Validation of the obstetric comorbidities index for predicting maternal mortality and severe maternal morbidity in South Korea.Scientific reports · 2025Article
- Advanced maternal age elevates the prevalence of hypertensive disorders in women of Japanese, independent of blood pressure: a study from the Japan Environment and Children's study.Hypertension research : official journal of the Japanese Society of Hypertension · 2025Article
- The influence of advanced maternal age on congenital malformations, short- and long-term outcomes in offspring of nulligravida: a Korean National Cohort Study over 15 years.Obstetrics & gynecology science · 2024Article
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- Metaverse Wearables for Immersive Digital Healthcare: A Review.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2023Review
- Trends in the Prevalence of Diabetes Mellitus in Pregnancy during the Past Two Decades in Northern Thailand.Healthcare (Basel, Switzerland) · 2023Article
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Authors and funding
3 authors at 3 institutions in 1 country.
Funding
Abstract
To investigate the association between maternal age and severe maternal morbidity (SMM) in a Korean population. Data for cases of delivery between 2003 and 2019 were extracted from the Korean National Health Insurance Service-National Delivery Cohort. The main outcome was SMM, which was determined using the Center for Disease Control and Prevention's algorithm. A generalized estimating equation model with a log link was performed for the relationship between SMM and maternal age adjusted for covariates. SMM occurred in 40,959/2,113,615 (1.9%) of delivery cases. Teenagers and women 35 years and older had an increased risk of SMM in both nulliparous and multiparous cases (ages 15-19: risk ratio (RR) 1.32, 95% confidence interval (CI) 1.15-1.46; ages 35-39: RR 1.24, 95% CI 1.21-1.28; ages 40-44: RR 1.57, 95% CI 1.50-1.64; and ages 45 or older: RR 2.07, 95% CI 1.75-2.44). Women aged 40 years and older had the highest rates of SMM. In singleton births as well as in nulliparous and multiparous cases, teenagers and women aged 35 years and older had a particularly high risk of SMM. Identifying and managing risk factors for SMM in these vulnerable age groups may improve maternal health outcomes.
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