Gilpin E A, Pierce J P, Cavin S W, Berry C C, Evans N J, Johnson M, Bal D G
Cancer Prevention and Control Program, Cancer Center, University of California, San Diego, La Jolla 92093-0901.
Am J Public Health. 1994 Oct;84(10):1576-9. doi: 10.2105/ajph.84.10.1576.
In the face of rising costs of surveillance systems, it is time to reexamine the feasibility of including proxy respondents in surveys designed to provide population estimates of smoking prevalence.
Data are from the California. Tobacco Surveys, which are random-digit dialed telephone surveys. One adult provided demographic information and smoking status for all household residents. Additionally, some adults were selected for in-depth interviews that also included smoking status questions. We matched information from proxy respondents and self-respondents and evaluated smoking status discrepancies between them relative to demographic and other factors (n = 2930 matched pairs) in 1992. We address the potential bias these discrepancies might introduce into the population estimate of smoking prevalence.
Overall, the discrepancy between proxy report and self-report was 4.3%, and it increased particularly when the self-respondent reported nondaily smoking or recent quitting. Discrepancies acted in both directions, and the net bias was that the screener survey overestimated smoking prevalence by 0.1% in 1992 (0.3% in 1990).
Smoking status questions can be added to ongoing surveys such as the census or labor force surveys; one adult could provide smoking status for all household members.
鉴于监测系统成本不断上升，现在是时候重新审视在旨在提供吸烟流行率人群估计的调查中纳入代理受访者的可行性了。
数据来自加利福尼亚烟草调查，这是随机数字拨号电话调查。一名成年人提供了所有家庭居民的人口统计信息和吸烟状况。此外，一些成年人被选入深入访谈，其中也包括吸烟状况问题。我们对代理受访者和自我受访者的信息进行了匹配，并评估了1992年他们之间相对于人口统计和其他因素的吸烟状况差异（n = 2930对匹配对）。我们探讨了这些差异可能给吸烟流行率的人群估计带来的潜在偏差。
总体而言，代理报告与自我报告之间的差异为4.3%，当自我受访者报告非每日吸烟或近期戒烟时，差异尤其增大。差异在两个方向上都有，净偏差是筛选调查在1992年高估吸烟流行率0.1%（1990年为0.3%）。
可以在诸如人口普查或劳动力调查等正在进行的调查中添加吸烟状况问题；一名成年人可以为所有家庭成员提供吸烟状况。
