Helliwell B, Aylesworth R, McDowell I, Baumgarten M, Sykes E
Department of Epidemiology and Community Medicine, University of Ottawa, Ontario, Canada.
Int Psychogeriatr. 2001;13 Supp 1:49-56. doi: 10.1017/s1041610202007986.
Correlates of nonparticipation in the community interview component of the Canadian Study of Health and Aging and their impact on bias in the results were analyzed. Characteristics of study subjects, their habitats, and encouragement techniques were analyzed to identify correlates of variation in response rates across the 18 study centers. Refusal rates from 14% to 41% varied by age, gender, city size, number of subjects and length of time for enrollment, and method of approach. Cognitively impaired subjects had higher refusal rates which affected prevalence estimates. At one study site, efforts to "convert" subjects who initially refused to participate in the survey were successful with 26% of those who were recontacted.
分析了加拿大健康与老龄化研究中社区访谈部分未参与的相关因素及其对结果偏差的影响。分析了研究对象的特征、他们的居住环境以及鼓励技巧，以确定18个研究中心应答率差异的相关因素。14%至41%的拒绝率因年龄、性别、城市规模、研究对象数量、招募时间长度和接触方式而异。认知受损的研究对象拒绝率较高，这影响了患病率估计。在一个研究地点，对最初拒绝参与调查的研究对象进行“说服”的努力取得了成功，重新联系的对象中有26%同意参与。
