The association between outdoor noise and temperature exposure with incident type 2 diabetes, and mediation by sleep and body mass index: A multi-cohort analysis

March 1, 2026Environmental ResearchOpen Access

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Key Points

This research aims to explore the relationship between outdoor noise, temperature exposure, and the onset of type 2 diabetes, along with mediation by sleep and body mass index.
Analyzed multiple cohorts for associations between outdoor noise and temperature and type 2 diabetes incidence.
Assessed potential mediation effects of sleep duration and body mass index on these associations.
No significant association found between outdoor noise and type 2 diabetes incidence.
Elevated nighttime temperatures showed no link to type 2 diabetes.
Sleep and body mass index did not mediate the relationship between environmental factors and diabetes.

Multi-cohort analysis shows no impact of noise and temperature on type 2 diabetes, indicating sleep and BMI do not mediate effects.

Outdoor noise and elevated nighttime temperatures were not associated with incident T2D, nor mediated by sleep duration and BMI in this study.

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Siddiqui et al. (2026) studied this question.

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