IMR Press / CEOG / Volume 44 / Issue 2 / DOI: 10.12891/ceog3462.2017

Clinical and Experimental Obstetrics & Gynecology (CEOG) is published by IMR Press from Volume 47 Issue 1 (2020). Previous articles were published by another publisher on a subscription basis, and they are hosted by IMR Press on as a courtesy and upon agreement with S.O.G.

Original Research
Effect of relative humidity on preeclampsia
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1 Department of Obstetrics and Gynecology, Korea University College of Medicine, Seoul, South Korea
2 The Health Insurance Review and Assessment Service of Korea, Seoul, South Korea
3 Department of Biostatistics, College of Medicine, Korea University, Seoul, South Korea
Clin. Exp. Obstet. Gynecol. 2017, 44(2), 264–267;
Published: 10 April 2017

Purpose of investigation: The authors aimed to determine the relationship between meteorological variables and hypertension in pregnancy by using data from a national weather database. Materials and Methods: For this population-based observational study, the database of the Korea National Health Insurance (KNHI) Claims of the Health Insurance Review and Assessment Service (HIRA) and Korea Meteorological Administration was used. The 48,275 women with preeclampsia among 2,495,383 women who gave birth were included. Monthly meteorological factors and preeclampsia prevalence for five years were statistically analyzed. Results: Among temperature, relative humidity, sunlight duration, and rainfall, only relative humidity had a significant inverse correlation with the preeclampsia prevalence (p < 0.001). The other meteorological factors were not associated with preeclampsia. Conclusion: Relative humidity may be a significant factor for of the development of preeclampsia. Further monitoring of weather parameters during the entire pregnancy period may be the best method for verifying the present results in the development of preeclampsia.
Relative humidity
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