بررسی ارتباط بین مواجهه با صدا در محل کار و کیفیت خواب افراد در معرض یک صنعت لبنی در سال 1393

Background and aims: Noise is one of the troubles in industrial world and numerous people are affected by it. Sleep disturbance is a harmful effect of exposure to noise. High quality of sleep is an important factor in health and well-being so its decline can threaten persons&rsquo; health and even their safety. The current study was conducted to assess the relationship between exposure to noise and quality of sleep among workers in an industry. Methods: 86 workers from an industrial company participated in this descriptive and case-control study. Interference variables were recognized by a designed questionnaire. Moreover, an advanced sound level meter (CEL-450) and Pittsburgh standard questionnaire were used to measure the noise level and the quality of sleep. Results: The average of exposure to noise was 83.31&plusmn;2.36 and 56.91&plusmn;5.12 dB and the results of sleep quality scores were 6.19 and 3.81 in experimental and control group respectively. The statistical test showed that there was a significant difference between experimental and control group in their sleep quality (P<0.05). Conclusion: Our findings illustrated that occupational noise is the important factor in sleep disturbance among the exposed people. Due to the effect of sleep quality on people&acute;s performance and their mental health, it&acute;s essential to pay more attention to this issue.