Ambient air pollutants aggravate association of snoring with prevalent hypertension: results from the Henan Rural Cohort

Haiqing Zhang, Shanshan Li, Gongbo Chen, Tanko Abdulai, Xiaotian Liu, Yan Wang, Huiying Liang, Jian Hou, Wenqian Huo, Zhenxing Mao, Chongjian Wang, Ronghai Bie

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12 Citations (Scopus)


Aim: We aimed to assess if snoring and ambient air pollutants were jointly associated with prevalent hypertension in a cross-sectional study. Methods: A total of 28440 participants aged 18–79 years were obtained from the Henan Rural Cohort. Snoring evaluated using Pittsburgh sleep quality index (PSQI) scale was classified into ‘Never’, ‘<3 times/week’ and ‘≥3 times/week’ groups. Concentrations of air pollutants (PM1, PM2.5, PM10, and NO2) were evaluated by a satellite-based spatiotemporal model. The independent and joint associations between snoring and air pollutants on prevalence of hypertension were analyzed by logistic regression models. Results: The mean age of all participants was 56.0 ± 12.2 years. The frequencies and prevalence of participants with hypertension were 3666 (32.39%) in men and 5576(32.57%) in women, respectively. The odds ratio (OR) and 95% confidence interval (CI) of participants with snoring frequency of <3 times/week, ≥3 times/week was 1.10(1.02–1.20), and 1.15(1.08–1.23) for hypertension, compared to those without snoring. Participants with a snoring (≥3 times/week) and higher exposure concentrations of PM1, PM2.5, PM10, and NO2 had 2.58-fold(95% CI: 2.30–2.90), 3.03-fold(95% CI: 2.69–3.41), 2.89-fold(95% CI: 2.57–3.25) and 2.75-fold(95% CI: 2.44–3.10) for hypertension, compared to those without snoring and low concentrations of air pollutants. Additionally, participants with high PM1 and ≥3 times/week snoring (OR: 1.32, 95% CI: 1.18–1.48) was at a higher likelihood for prevalent hypertension, compared to those without snoring and with high PM1. Conclusions: Snoring and high ambient air pollutants might be important predictors of hypertension, and higher concentration of PM1 might aggravate the association between snoring and hypertension.

Original languageEnglish
Article number127108
Number of pages9
Publication statusPublished - Oct 2020


  • Air pollutants
  • Hypertension
  • Rural population
  • Sleep
  • Snoring

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