Boshuizen H C, Bongers P M, Hulshof C T
Coronel Laboratory, University of Amsterdam, The Netherlands.
Int Arch Occup Environ Health. 1990;62(2):109-15. doi: 10.1007/BF00383586.
A postal questionnaire on symptoms of ill health and exposure to whole-body vibration was completed by 577 workers (response rate 79%) who were employed in certain functions by two companies 11 years before. The relation between the occupational history of driving vibrating vehicles (mainly agricultural tractors) and back pain has been analyzed. The prevalence of reported back pain is approximately 10% higher in the tractor drivers than in workers not exposed to vibration. The increase is mainly due to more pain in the lower back and more pain lasting at least several days. A vibration dose was calculated by assigning each vehicle driven a vibration magnitude, estimated on the base of vibration measurements. The prevalence of back pain increases with the vibration dose. The highest prevalence odds ratios are found for the more severe types of back pain. These prevalence odds ratios do not increase with the vibration dose. This might be due to health-related selection which is more pronounced for severe back pain than for back pain in general. The two components of the vibration dose, duration of exposure and estimated mean vibration magnitude, have also been considered separately. Back pain increases with duration of exposure but it does not increase with the estimated mean magnitude of vibration. This is probably due to the inaccuracy of this estimate. The higher prevalence of back pain in tractor drivers might be (partly) caused by whole-body vibration, but prolonged sitting and posture might also be of influence.
一份关于健康问题症状和全身振动暴露情况的邮政调查问卷由577名工人填写完成（回复率79%），这些工人11年前受雇于两家公司从事特定工作。对驾驶振动车辆（主要是农用拖拉机）的职业经历与背痛之间的关系进行了分析。报告的背痛患病率在拖拉机司机中比未接触振动的工人高出约10%。这种增加主要是由于下背部疼痛更多以及至少持续数天的疼痛更多。通过根据振动测量结果为每辆驾驶过的车辆分配一个振动强度来计算振动剂量。背痛患病率随振动剂量增加。在更严重类型的背痛中发现最高的患病率比值比。这些患病率比值比并不随振动剂量增加。这可能是由于与健康相关的选择，对于严重背痛比一般背痛更为明显。振动剂量的两个组成部分，暴露持续时间和估计的平均振动强度，也分别进行了考虑。背痛随暴露持续时间增加，但不随估计的平均振动强度增加。这可能是由于这种估计的不准确。拖拉机司机中背痛患病率较高可能（部分）是由全身振动引起的，但长时间坐着和姿势也可能有影响。
