Abstract
Chronic exposure to traffic noise is associated with increased stress and sleep disruptions. Research on the health consequences of environmental noise, specifically traffic noise, has primarily been conducted in high-income countries (HICs), which have guided the development of noise regulations. The relevance of these findings to policy frameworks in low- and middle-income countries (LMICs) remains uncertain. To investigate the relationship between road traffic noise exposure and annoyance on insomnia symptoms, a questionnaire survey was administered to 5408 randomly selected participants residing in Srinagar, India. Sleep quality was assessed using a standardized sleep disturbance score, along with self-reported annoyance levels related to road traffic noise at the participants' residences. Nighttime road traffic noise was modeled using Sound PLAN 8.2 software to generate noise contour maps, enabling the spatial evaluation of noise levels along roadways near residential areas. A total of 79.3% of the 5408 respondents were exposed to noise levels exceeding 45 Lnight dB(A). Statistically significant associations were observed between traffic noise exposure and all insomnia symptoms, with difficulty falling asleep showing the strongest association (OR = 1.53; 95% CI = 1.12-2.09) within the study sample. Compared to males, females exhibited higher insomnia symptoms (OR = 1.68; 95% CI = 1.35-2.08). The results indicated that insomnia was strongly correlated with an increased odds of traffic noise annoyance (OR = 2.39; 95% CI = 1.73-3.76) (p = 0.029). Finally, this study advocates for a robust regulatory framework to incorporate noise pollution mitigation strategies into the public health action plans of developing nations.
Published Version
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