Degnan D, Harris R, Ranney J, Quade D, Earp J A, Gonzalez J
Lineberger Comprehensive Cancer Center, University of North Carolina (UNC), Chapel Hill, NC 27599-7400.
Am J Public Health. 1992 Oct;82(10):1386-8. doi: 10.2105/ajph.82.10.1386.
Population studies often estimate mammography use using women's self-reports. In one North Carolina county, we compared self-report surveys with a second method--counting mammograms per population--for 1987 and 1989. Estimates from self-reports (35% in 1987, 55% in 1989) were considerably higher than those from mammogram counts (20% in 1987, 36% in 1989). We then confirmed 66% of self-reports in the past year. Self-reported use is more accurate regarding whether a woman has had a mammogram than when she had it, but self-reports accurately measure change over time.
人口研究通常通过女性的自我报告来估算乳房X光检查的使用率。在北卡罗来纳州的一个县，我们将自我报告调查与另一种方法——按人口计算乳房X光检查次数——用于1987年和1989年的数据进行了比较。自我报告得出的估算值（1987年为35%，1989年为55%）显著高于乳房X光检查次数统计得出的估算值（1987年为20%，1989年为36%）。然后我们证实了过去一年中66%的自我报告。就女性是否进行过乳房X光检查而言，自我报告比其检查时间更准确，但自我报告能准确衡量随时间的变化。
