Orts Ríos E, García García A M, Benavides F G, Fletcher T
Institut Valencià d'Estudis en Salut Pública, Universitat de València.
Gac Sanit. 1997 Nov-Dec;11(6):274-80. doi: 10.1016/s0213-9111(97)71307-4.
The aim of this study is to validate a questionnaire intended to assess retrospective occupational exposure to pesticides in a case control study of workers exposed to pesticides and congenital malformations.
Occupational data were gathered through personal interviews to 56 agricultural workers and this information was compared to: 1) personal interviews with the workers' foremen, 2) direct observation of working places and 3) another questionnaire self-administered previously by the workers as a part of the "Training Program for Pesticide Applicators".
Accuracy and reliability indices are high for variables such as the crops where the interviewees have been working, the time period of the treatments with pesticides and the use of personal protection during treatments (sensitivity ranges between 0.81 and 1 and Kappa index ranges between 0.65 and 0.80). However, for variables such as the duration of the treatments and the pesticides used, sensitivity values range between 0.32 and 0.50.
The results suggest that the questionnaire is a valid tool for measuring some items but in order to improve the quality of the exposure assessment the questionnaire was modified, including a question about size of treated areas (as a proxy variable for duration of treatments) and prompt lists were developed to make easier recall by the workers of specific pesticides used in treatments.
本研究旨在验证一份问卷，该问卷旨在评估在一项关于接触农药与先天性畸形的病例对照研究中工人过去的职业性农药接触情况。
通过对56名农业工人进行个人访谈收集职业数据，并将这些信息与以下内容进行比较：1）与工人领班的个人访谈；2）对工作场所的直接观察；3）工人之前作为“农药施用培训计划”一部分自行填写的另一份问卷。
对于诸如受访者工作过的作物、农药处理的时间段以及处理期间个人防护用品的使用等变量，准确性和可靠性指标较高（敏感度在0.81至1之间，卡帕指数在0.65至0.80之间）。然而，对于处理持续时间和所使用农药等变量，敏感度值在0.32至0.50之间。
结果表明该问卷是测量某些项目的有效工具，但为了提高接触评估的质量，对问卷进行了修改，包括增加了一个关于处理面积大小的问题（作为处理持续时间的替代变量），并编制了提示清单以便工人更容易回忆起处理中使用的特定农药。
