IRCT2013121515783N1已完成未知
The effectiveness of applying different permissible exposure limits in preserving hearing threshold level among automobile industry workers: An intervention study
Post Graduate Research Grant University of Malaya0 个研究点目标入组 104 人开始时间: 待定最近更新:
适应症
试验速览
- 阶段
- 未知
- 状态
- 已完成
- 发起方
- 入组人数
- 104
研究概览
简要总结
暂无简介。
研究设计
- 研究类型
- Interventional
入排标准
- 年龄范围
- no limit 至 no limit（—）
- 性别
- All
入选标准
- •Inclusion criterion is subjects exposed to noise levels above action level (85 dBA in one factory and 80 dBA in another factory).
- •Exclusion criteria are refused to participate, contract workers, who have diseases of ear, impacted wax, perforated tympanic membrane, physical trauma to ear, lorry drivers, who had undergone ear surgery and those have congenital hearing loss.
排除标准
- 未提供
研究者
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