Preston-Martin S, Bernstein L, Maldonado A A, Henderson B E, White S C
Am J Epidemiol. 1985 Mar;121(3):430-9. doi: 10.1093/oxfordjournals.aje.a114015.
Information was collected from dentists of a subset of participants in a case-control interview study conducted in Los Angeles County, California, in August 1980-August 1981 to evaluate the relationship of dental x-rays to tumors of the parotid gland. Complete dental charts were available from 142 dentists of 84 cases and from 130 dentists of 79 controls. Analysis of data from these interview-chart comparisons indicates that recall appears to be unbiased since the measures of agreement between interview and dental chart data are similar for cases and controls. The authors further conclude that interview data alone may be used for case-control comparisons of dental x-ray exposure and would, because of unbiased misclassification, tend to underestimate the relative risks.
1980年8月至1981年8月在加利福尼亚州洛杉矶县进行了一项病例对照访谈研究，从部分参与者的牙医处收集信息，以评估牙科X线与腮腺肿瘤之间的关系。84例患者的142名牙医和79名对照的130名牙医提供了完整的牙科病历。对这些访谈与病历比较的数据进行分析表明，回忆似乎没有偏差，因为病例组和对照组的访谈数据与牙科病历数据之间的一致性测量结果相似。作者进一步得出结论，仅访谈数据可用于牙科X线暴露的病例对照比较，并且由于无偏差的错误分类，可能会低估相对风险。
