Increased Incidence of Dysmenorrhea in Women Exposed to Higher Concentrations of NO, NO2, NOx, CO, and PM2.5

A Nationwide Population-Based Study

Datos Bibliográficos

ID22073156
AutoresShih-Yi Lin (China Medical University), Yu-Cih Yang, Yu‐Cih Yang (0000-0002-5725-1244, China Medical University), C C Lin (0000-0002-9625-6216, China Medical University), Cheng-Chieh Lin, Cherry Yin-Yi Chang, Cherry Yin‐Yi Chang (0000-0003-1443-5980, China Medical University), Wu-Huei Hsu (0000-0002-0743-7841), Wu‐Huei Hsu (China Medical University), I‐Kuan Wang (0000-0001-9435-5213, China Medical University), I-Kuan Wang, Chia-Der Lin (China Medical University), Chung-Y Hsu, Chung Y Hsu (0000-0002-5632-2733, China Medical University), Chia-Hung Kao, Chia‐Hung Kao (0000-0002-6368-3676, Asia University, autor de correspondencia)
Año2021
Volumen9
Páginas682341-682341
Fecha de publicación2021-06-17
Peer ReviewedSí
Open AccessSí
TipoARTICLE
RevistaFrontiers in Public Health (JOURNAL)
Identificadores de la revistaISSN: 2296-2565 • E-ISSN: 2296-2565
EditorialFrontiers Media SA (PUBLISHER • CH)
DOI10.3389/fpubh.2021.682341
PMID34222182
OpenAlexW3175085410
IdiomaEN
Referencias citadas63

Background: Air pollution is speculated to affect the reproductive health of women. However, a longitudinal association between exposure to air pollution and dysmenorrhea has not been identified, which this study aimed to examine this point. Methods: Two nationwide databases, namely the Taiwan Air Quality Monitoring database and the Taiwan National Health Research Institutes database were linked. Women with a history of dysmenorrhea (International Classification of Disease, Ninth Revision, Clinical Modification code 625.3) before 2000 were excluded. All participants were followed from January 1, 2000 until the diagnosis of dysmenorrhea, withdrawal from National Health Insurance, or December 31, 2013. Furthermore, air pollutants were categorized into quartiles with three cut-off points (25th, 50th, and 75th percentiles). The Cox regression model was used to calculate the hazard ratios of dysmenorrhea. Results: This study enrolled 296,078 women. The mean concentrations of yearly air pollutants were 28.2 (±12.6) ppb for nitric oxides (NO x ), 8.91 (±7.93) ppb for nitric oxide (NO), 19.3 (±5.49) ppb for nitrogen dioxide (NO 2 ), 0.54 (±0.18) ppm for carbon monoxide (CO), and 31.8 (±6.80) μg/m 3 for PM 2.5 . In total, 12,514 individuals developed dysmenorrhea during the 12-year follow-up. Relative to women exposed to Q1 concentrations of NO x , women exposed to Q4 concentrations exhibited a significantly higher dysmenorrhea risk [adjusted hazard ratio (aHR)= 27.9, 95% confidence interval (CI) = 21.6–31.3]; similarly higher risk was found for exposure to NO (aHR = 16.7, 95% CI = 15.4–18.4) and NO 2 (aHR = 33.1, 95% CI = 30.9–37.4). For CO, the relative dysmenorrhea risk in women with Q4 level exposure was 28.7 (95% CI = 25.4–33.6). For PM 2.5 , women at the Q4 exposure level were 27.6 times (95% CI = 23.1–29.1) more likely to develop dysmenorrhea than those at the Q1 exposure level. Conclusion: Our results showed that women would have higher dysmenorrhea incidences while exposure to high concentrations of NO, NO 2 , NO x , CO, and PM 2.5

Confidence interval · Environmental health · Hazard ratio · Percentile · Population · Proportional hazards model · Quartile · Climate Change and Health Impacts · Demography · Medicine · Menstrual Health and Disorders · Internal Medicine