Abstract

OBJECTIVE: To assess the association between hypertensive disorders of pregnancy and adverse events after pregnancy, including chronic kidney disease and major adverse cardiovascular events (cerebrovascular accident, coronary artery disease, or death). METHODS: A nationwide, population-based cohort study was conducted analyzing women with hypertensive disorders of pregnancy identified from Taiwan National Health Insurance Research Database from 2004 to 2015. Hypertensive disorders of pregnancy were identified using the International Classification of Diseases, Ninth Revision, Clinical Modification codes. The study cohort was comprised of women aged 20-40 years diagnosed with hypertensive disorders of pregnancy from 2006 to 2013. The comparison group comprised of four randomly selected women without hypertensive disorders of pregnancy, matched for age and index date for each woman with hypertensive disorders of pregnancy. All the women were followed from the date of cohort entry until they developed chronic kidney disease or major adverse cardiovascular events or until the end of 2015, whichever occurred first. A Cox proportional hazard model was used to estimate the risk of chronic kidney disease and major adverse cardiovascular events. RESULTS: We identified 29,852 women with a diagnosis of hypertensive disorders of pregnancy and 119,408 matched women without hypertensive disorders of pregnancy who fit the inclusion criteria. The crude hazard ratios (HRs) were 5.22 (95% CI 4.67-5.83) and 2.26 (95% CI 1.99-2.57) for chronic kidney disease and major adverse cardiovascular events. After adjusting for potential confounders, hypertensive disorders of pregnancy was associated with a higher risk of chronic kidney disease (adjusted HR, 4.26; 95% CI 3.80-4.78), and major adverse cardiovascular events (adjusted HR, 2.15; 95% CI 1.89-2.45). CONCLUSION: This population-based cohort study indicated that women with hypertensive disorders of pregnancy are at a higher risk of chronic kidney disease and major adverse cardiovascular events than women without hypertensive disorders of pregnancy. Further studies are required to clarify the nature of these associations and to improve public health interventions.

Original languageEnglish
Pages (from-to)285-293
Number of pages9
JournalObstetrics and Gynecology
Volume137
Issue number2
DOIs
Publication statusPublished - Feb 1 2021

ASJC Scopus subject areas

  • Obstetrics and Gynaecology

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