Is the accuracy of self-reported colorectal cancer screening associated with social desirability?
Is the accuracy of self-reported colorectal cancer screening associated with social desirability?
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DOI：
10.1158/1055-9965.epi-11-0552
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发表时间：
2012-01
期刊：
影响因子：
--
通讯作者：
Coan SP
中科院分区：
文献类型：
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作者：
Vernon SW;Abotchie PN;McQueen A;White A;Eberth JM;Coan SP
自我报告的癌症筛查行为往往被过度报告，可能导致对筛查中患病率和亚组差异的偏倚估计。我们研究了是否倾向于给出社会期望的反应与自我报告的结直肠癌（CRC）筛查行为和医疗记录之间的一致性有关。初级保健患者（n = 857），年龄50至74岁，完成了邮件，面对面或电话调查，评估CRC筛查和社会可取性衡量的简短版本的马洛-皇冠规模。我们使用医疗记录来验证粪便潜血试验（FOBT）、乙状结肠镜检查、结肠镜检查和钡灌肠的自我报告。白人与非裔美国人、大学毕业生和未报告既往筛查测试的患者相比，社会期望得分较低;电话调查受访者的社会期望得分高于邮件或面对面调查受访者。在单变量logistic回归分析中，社会期望得分与FOBT的一致性无关（OR = 1.03，95%CI = 0.94-1.13），乙状结肠镜检查（OR = 0.95，95% CI = 0.86-1.04），或结肠镜检查（OR = 0.99，95% CI = 0.88-1.11）;然而，较低的社会满意度评分与钡灌肠一致性增加相关（OR = 0.87，95%CI = 0.77-0.99）。在多变量分析中，没有统计学意义的相关性。在我们的样本中，Marlowe-Crowne量表测量的社会期望与自我报告的CRC测试的准确性无关，这表明需要探索过度报告的其他解释。通过了解反应偏差的来源，我们可以提高自我报告测量的准确性。
Self-reported cancer screening behaviors are often overreported and may lead to biased estimates of prevalence and of subgroup differences in screening. We examined whether the tendency to give socially desirable responses was associated with concordance between self-reported colorectal cancer (CRC) screening behaviors and medical records. Primary care patients (n = 857) age 50 to 74 years completed a mail, face-to-face, or telephone survey that assessed CRC screening and social desirability measured by a short version of the Marlowe–Crowne scale. We used medical records to verify self-reports of fecal occult blood testing (FOBT), sigmoidoscopy, colonoscopy, and barium enema. Social desirability scores were lower for whites versus African Americans, college graduates, and patients reporting no prior screening tests; they were higher for telephone versus mail or face-to-face survey respondents. In univariable logistic regression analysis, social desirability scores were not associated with concordance for FOBT (OR = 1.03, 95% CI = 0.94–1.13), sigmoidoscopy (OR = 0.95, 95% CI = 0.86–1.04), or colonoscopy (OR = 0.99, 95% CI = 0.88–1.11); however, lower social desirability scores were associated with increased concordance for barium enema (OR = 0.87, 95% CI = 0.77–0.99). In multivariable analyses, no associations were statistically significant. Social desirability as measured by the Marlowe–Crowne scale was not associated with accuracy of self-reported CRC tests in our sample, suggesting that other explanations for overreporting need to be explored. By understanding sources of response bias, we can improve the accuracy of self-report measures.