Objective: The purpose of this study is to determine the association between high elevation and hypertensive disorders of pregnancy (HDP).
Methods: Retrospective cohort study using Colorado birth certificate data to compare HDP at high (≥8,000 ft), moderate (4,501-7,999 ft), or low (≤4,500 ft) elevation using logistic regression.
Results: Among the cohort (n = 314,431), 3.4% of women developed a HDP. High or moderate elevation was not significantly associated with HDP relative to low elevation (adjusted odds ratio [aOR] 1.16, 95% confidence interval [CI] 0.93-1.43; aOR 1.14, 95% CI 0.98-1.31, respectively).
Conclusion: Women living at high or moderate elevation do not have higher odds of HDP.
Keywords: Altitude; hypertensive disorders of pregnancy; population health; pregnancy.