A validation of questionnaire information on occupational exposure and smoking.
通过比较160名已故冶炼厂工人的问卷信息与员工登记数据，验证了问卷在职业暴露和吸烟信息上的有效性，发现问卷在就业信息上高度准确，但在砷暴露评估上敏感性较低。
Occupational exposure information obtained via a questionnaire to close relatives of 160 deceased smelter workers was compared with data from employee registers. The data from the questionnaire regarding employment at the smelter had a very high validity, ie, a sensitivity of 98% and a specificity of 99%. When an assessment of arsenic exposure was made from information in the questionnaire, the sensitivity was only 40%, but the specificity was over 90%. Data on smoking habits were available from medical files for only 14 of the subjects. For all 14, the information was identical to the data in the questionnaires. It appears that questionnaires may sometimes be of use for exposure assessments in occupational health epidemiology.