Olsen G W, Mandel J S
Epidemiology Department, Dow Chemical Company, Midland, MI 48674.
Am J Public Health. 1988 Nov;78(11):1487-8. doi: 10.2105/ajph.78.11.1487.
The experience of identifying and soliciting elderly male controls, using a nonclustered random digit dialing procedure in a case-control study, is presented. For elderly controls (ages 65-84) 3.5 times more residential telephone numbers were required than for controls encompassing a much broader age range (ages 40-84). This is a function of the proportion of elderly in the population and their lower response to telephone identification. Elderly controls, age 70 and older, also had lower participation rates.
本文介绍了在一项病例对照研究中,使用非整群随机数字拨号程序识别和招募老年男性对照的经验。对于老年对照(65 - 84岁),所需的住宅电话号码数量是年龄范围更广(40 - 84岁)的对照的3.5倍。这是人口中老年人口比例及其对电话识别较低响应率的函数。70岁及以上的老年对照参与率也较低。