Rasmussen Kurt, Carstensen Ole, Lauritsen Jens M, Glasscock David J, Hansen Ole N, Jensen Ulla F
Department of Occupational Medicine, Herning Hospital, Herning, Denmark.
Scand J Work Environ Health. 2003 Aug;29(4):288-96. doi: 10.5271/sjweh.733.
This study examined the effects of a 4-year randomized intervention program that combined a safety audit with safety behavior training in the prevention of farm injuries.
From a random sample of farms in the county of Ringkoebing, Denmark, 393 farms with 1597 residents and employees participated in a weekly self-registration of work-related accidents and injuries during 1 year. Worktasks and time at risk were recorded. A questionnaire including items on safety behavior was also mailed to each farm. Thereafter, the farms were randomly assigned to an intervention or control group. Two hundred and one farms with 990 persons at risk participated in the intervention study. The main outcome measures were the number and severity of accidents, safety behavior, and farmsite safety audits.
Pre- and postmeasurements showed a substantial reduction in injury rates in the intervention group in comparison with a slight reduction in the control group. In a multivariate regression analysis the intervention effect was estimated to be a 30% injury-rate reduction of all injuries, while there was a 42% reduction for medically treated injuries only. Although none of these effects are statistically significant with the present sample size, their magnitude and direction support an intervention effect. The measures of safety behavior revealed significant improvements, and this finding supports the conclusion that the intervention effect was positive, since they concern some of the mediating factors on the pathway from intervention to improved injury rates.
This intervention, which focused on safety behavior and was performed as a randomized controlled trial, was followed by a substantial reduction in the number of farm injuries. The reduction was particularly marked for the more severe injuries demanding medical treatment.
本研究探讨了一项为期4年的随机干预项目的效果,该项目将安全审核与安全行为培训相结合以预防农场伤害。
从丹麦灵克宾县的农场随机样本中,393个有1597名居民和员工的农场在1年时间里每周对与工作相关的事故和伤害进行自我登记。记录工作任务和危险时间。还向每个农场邮寄了一份包含安全行为项目的问卷。此后,农场被随机分为干预组或对照组。201个有990名有风险人员的农场参与了干预研究。主要结局指标为事故的数量和严重程度、安全行为以及农场现场安全审核。
干预组的前后测量结果显示伤害率大幅降低,而对照组仅有轻微降低。在多变量回归分析中,干预效果估计为所有伤害的伤害率降低30%,而仅接受医学治疗的伤害降低42%。尽管以目前的样本量这些效果均无统计学意义,但其大小和方向支持干预效果。安全行为指标显示有显著改善,这一发现支持了干预效果为阳性的结论,因为它们涉及从干预到伤害率改善这一途径中的一些中介因素。
这项以安全行为为重点并作为随机对照试验进行的干预措施实施后,农场伤害数量大幅减少。对于需要医学治疗的更严重伤害,减少尤为明显。