Kapp J M, Jackson-Thompson J, Petroski G F, Schootman M
Department of Family and Community Medicine, 1 Hospital Drive, MA306E Medical Sciences Building, University of Missouri-Columbia, Columbia, MO 65212, USA.
Public Health. 2009 Apr;123(4):321-5. doi: 10.1016/j.puhe.2008.10.005. Epub 2008 Dec 9.
The current emphasis in cancer survivorship research, which includes health-related quality of life (HRQoL), drives the need to monitor the nation's cancer burden. Routine, ongoing public health surveillance tools, such as the Behavioral Risk Factor Surveillance System (BRFSS), may be relevant for this purpose.
A subsample of the 2005 Missouri BRFSS was used to estimate test-retest reliability of HRQoL questions among persons who did and did not report a personal cancer history.
Retest interviews were conducted by telephone 14-21 days after the initial data collection (n=540, 67% response rate). Reliability was estimated overall and by cancer history using intraclass correlation coefficients (ICCs) and kappa statistics.
The majority of retest respondents were White, female and married, with 13% reporting a history of cancer. Overall, point estimates of the reliability coefficients ranged from moderate to excellent (kappa=0.57-0.75). There were no statistically significant differences in test-retest reliability between persons with and without a history of cancer, except for self-reported pain (ICC=0.59 and ICC=0.78, respectively).
In general, BRFSS questions appear to have adequate reliability for monitoring HRQoL in this community-dwelling population, regardless of cancer history.
当前癌症生存研究的重点，包括与健康相关的生活质量（HRQoL），促使人们需要监测国家的癌症负担。常规的、持续的公共卫生监测工具，如行为危险因素监测系统（BRFSS），可能适用于此目的。
2005年密苏里州BRFSS的一个子样本被用于估计报告和未报告个人癌症病史的人群中HRQoL问题的重测信度。
在初始数据收集后14 - 21天通过电话进行重测访谈（n = 540，应答率67%）。使用组内相关系数（ICC）和kappa统计量总体估计并按癌症病史估计信度。
大多数重测受访者为白人、女性且已婚，13%报告有癌症病史。总体而言，信度系数的点估计值从中度到优秀（kappa = 0.57 - 0.75）。有或没有癌症病史的人群在重测信度上没有统计学显著差异，但自我报告的疼痛情况除外（ICC分别为0.59和0.78）。
总体而言，BRFSS问题对于监测该社区居住人群的HRQoL似乎具有足够的信度，无论癌症病史如何。
