Hingson R, Zuckerman B, Amaro H, Frank D A, Kayne H, Sorenson J R, Mitchell J, Parker S, Morelock S, Timperi R
Am J Public Health. 1986 Jun;76(6):667-9. doi: 10.2105/ajph.76.6.667.
To assess the validity of self-reported marijuana use during pregnancy, this study randomly allocated pregnant women into a group who were told their urine would be tested for marijuana, alcohol, and other drugs and another group not so tested. Women told they would be tested reported more marijuana use during pregnancy than did untested women. Moreover, urine assays identified more women who used marijuana during pregnancy than were willing to admit it in the interview even after being told their urine would be tested. No differences in reported drinking or cigarette smoking during pregnancy were found between tested and untested women.
为评估孕期自我报告的大麻使用情况的有效性，本研究将孕妇随机分为两组，一组被告知其尿液将接受大麻、酒精及其他药物检测，另一组则不接受此类检测。被告知将接受检测的女性报告的孕期大麻使用量高于未接受检测的女性。此外，尿液检测发现的孕期使用大麻的女性比那些即便在被告知尿液将接受检测后仍在访谈中愿意承认使用大麻的女性更多。在接受检测和未接受检测的女性之间，未发现孕期报告的饮酒或吸烟情况存在差异。
