Does traffic noise cause hypertension? @ יואל קסלר – in this new post we look at new data from JACC on the association between hypertension and road noise. The following is an abstract from the Journal of the American College of Cardiology. The full article can be found here.

בפוסט הזה יואל קסלר .קום, נסקור נתונים ממחקר חדש בכתב העת של הקולג' האמריקאי לקרדיולוגיה שמראה שחשיפה לכמויות גדולות של רעשי תנועה קשורה לעלייה בשכיחות של יתר לחץ דם

Road Traffic Noise and Incidence of Primary Hypertension: A Prospective Analysis in UK BiobankOPEN ACCESS

Original Research

Jing Huang Teng Yang John Gulliver Anna L. Hansell Mohammad Mamouei Yutong Samuel Cai, and Kazem Rahimi

JACC Adv. Mar 22, 2023. Epublished DOI: 10.1016/j.jacadv.2023.100262

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Abstract

Background

The quality of evidence regarding the associations between road traffic noise and hypertension is low due to the limitations of cross-sectional study design, and the role of air pollution remains to be further clarified.

Objectives

To evaluate the associations of long-term road traffic noise exposure with incident primary hypertension; we conducted a prospective population-based analysis in UK Biobank.

Methods

Road traffic noise was estimated at baseline residential address using the common noise assessment method model. Incident hypertension was ascertained through linkage with medical records. Cox proportional hazard models were used to estimate hazard ratios (HRs) for association in an analytical sample size of over 240,000 participants free of hypertension at baseline, adjusting for covariates determined via directed acyclic graph.

Results

During a median of 8.1 years follow-up, 21,140 incident primary hypertension (International Classification of Diseases 10th Revision[ICD 10]: I10) were ascertained. The HR for a 10 dB[A] increment in mean weighted average 24-hour road traffic noise level (L_den) exposure was 1.07 (95% confidence interval: 1.02, 1.13). A dose-response relationship was found, with HR of 1.13 (95% confidence interval: 1.03, 1.25) for L_den >65 dB[A] vs ≤55 dB[A] (P for trend < 0.05). The associations were all robust to adjustment for fine particles (PM_2.5) and nitrogen dioxide (NO₂). Furthermore, high exposure to both road traffic noise and air pollution was associated with the highest hypertension risk.

Conclusions

Long-term exposure to road traffic noise was associated with increased incidence of primary hypertension, and the effect estimates were stronger in presence of higher air pollution."

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