Stolley P D, Tonascia J A, Sartwell P E, Tockman M S, Tonascia S, Rutledge A, Schinnar R
Am J Epidemiol. 1978 Mar;107(3):226-35. doi: 10.1093/oxfordjournals.aje.a112529.
A comparison between prescriber records and patient-reported oral contraceptive histories obtained during a case-control study of thromboembolism and oral contraceptive use served as the basis for evaluating the extent of agreement between these two sources of information. Agreement between oral contraceptive user and prescriber was highest on the name of the most recently-used product (89% agreement), and dropped to 62.5% on the name of the product taken before the more recent one. For total duration of oral contraceptive use (to within one month of hospital admission), agreement (defined as differences not exceeding one month) was 36%, while 39% showed the users reporting longer duration of use, and 25% showed users reporting shorter duration. Cases showed a higher rate of agreement with prescriber records than the controls on both the name of the product and the total duration of use. Disagreement from prescriber records in the direction of reporting longer duration of use was 45% for the controls compared to 27% for the cases. These results indicate that while user information in connection with the most recently used oral contraceptive can be acceptable in studies employing the case-control research strategy, user reports about previous oral contraceptive use may be less useful.
在一项关于血栓栓塞与口服避孕药使用的病例对照研究中，对开处方者记录与患者报告的口服避孕药使用史进行比较，以此作为评估这两种信息来源之间一致程度的基础。口服避孕药使用者与开处方者之间在最近使用产品的名称上一致性最高（一致率为89%），而在最近使用产品之前服用产品的名称上，一致率降至62.5%。对于口服避孕药的总使用时长（至入院前一个月内），一致性（定义为差异不超过一个月）为36%，而39%的使用者报告的使用时长更长，25%的使用者报告的使用时长更短。在产品名称和总使用时长方面，病例组与开处方者记录的一致率均高于对照组。对照组报告使用时长更长而与开处方者记录不一致的比例为45%，病例组为27%。这些结果表明，在采用病例对照研究策略的研究中，与最近使用的口服避孕药相关的使用者信息可能是可接受的，但使用者关于既往口服避孕药使用情况的报告可能用处较小。
