Accuracy of task recall for epidemiological exposure assessment to construction noise
Accuracy of task recall for epidemiological exposure assessment to construction noise
复制标题
DOI：
10.1136/oem.2002.000489
复制
发表时间：
2004-02-01
影响因子：
4.9
通讯作者：
Neitzel, R
中科院分区：
文献类型：
--
作者：
Reeb-Whitaker, CK;Seixas, NS;Neitzel, R
目的：为了验证的准确性，建筑工人回忆的任务和环境为基础的信息，并评估任务回忆的影响，估计noise exposure.Methods：一个队列的25名建筑工人每天记录的任务，每周进行剂量测量，为期六周。工人回忆的日常活动卡上报告的任务进行了验证与研究观察和比较直接的任务回忆在6个月interview.Results：平均L-EQ噪声暴露水平（dBA）从剂量计测量的木匠和电工，分别为89.9（n = 61）和83.3（n = 47）。将访谈期间报告的任务时间百分比与日常活动卡计算的时间百分比进行比较;在标称5%的显著性水平下，仅2/22个任务不同。根据偏差和精确度，访谈中报告的任务时间百分比的准确性为53-100%（中位数为91%）。对于木匠，来自活动卡（平均91.9 dBA）的噪声估计的差异是没有什么不同的问卷调查（平均91.7 dBA）。这一趋势也适用于电工。对于所有受试者，来自活动卡和问卷的噪声估计与剂量测量密切相关。来自调查问卷和剂量测定测量的噪声估计之间的平均差异为2.0分贝，是独立的实际暴露level.Conclusions：六个月后的任务进行，建筑工人能够准确地回忆起他们花在各种任务的百分比时间。基于长期回忆（问卷）的噪声暴露估计值与来自日常活动卡的估计值没有什么不同，并且与剂量测定测量值密切相关，平均高估了2.0 dBA的水平。
Aims: To validate the accuracy of construction worker recall of task and environment based information; and to evaluate the effect of task recall on estimates of noise exposure.Methods: A cohort of 25 construction workers recorded tasks daily and had dosimetry measurements weekly for six weeks. Worker recall of tasks reported on the daily activity cards was validated with research observations and compared directly to task recall at a six month interview.Results: The mean L-EQ noise exposure level (dBA) from dosimeter measurements was 89.9 (n = 61) and 83.3 (n = 47) for carpenters and electricians, respectively. The percentage time at tasks reported during the interview was compared to that calculated from daily activity cards; only 2/22 tasks were different at the nominal 5% significance level. The accuracy, based on bias and precision, of percentage time reported for tasks from the interview was 53-100% (median 91%). For carpenters, the difference in noise estimates derived from activity cards (mean 91.9 dBA) was not different from those derived from the questionnaire (mean 91.7 dBA). This trend held for electricians as well. For all subjects, noise estimates derived from the activity card and the questionnaire were strongly correlated with dosimetry measurements. The average difference between the noise estimate derived from the questionnaire and dosimetry measurements was 2.0 dBA, and was independent of the actual exposure level.Conclusions: Six months after tasks were performed, construction workers were able to accurately recall the percentage time they spent at various tasks. Estimates of noise exposure based on long term recall (questionnaire) were no different from estimates derived from daily activity cards and were strongly correlated with dosimetry measurements, overestimating the level on average by 2.0 dBA.