Shea S, Stein A D, Lantigua R, Basch C E
Department of Medicine, Columbia University College of Physicians and Surgeons, New York, NY.
Am J Epidemiol. 1991 Mar 1;133(5):489-500. doi: 10.1093/oxfordjournals.aje.a115916.
The Behavioral Risk Factor Survey (BRFS) is a telephone interview used widely by the Centers for Disease Control (CDC) in conjunction with state health departments to measure prevalences and time trends for health-related behaviors. We assessed the reliability of those parts of the BRFS related to cardiovascular disease (smoking, diet, obesity, exercise, and hypertension) and demographics by readministering the BRFS in July and August of 1989 to 145 randomly selected subjects between 10 and 21 days following completion of an initial interview. Sampling and data collection closely followed CDC procedures. The retest samples comprised 49 whites, 43 blacks, and 53 Hispanics living in northern Manhattan in New York City. Group prevalences or means were compared at first and second interviews for six demographic variables and 12 behavioral risk factor variables for the samples as a whole and separately for each ethnic group. All of these comparisons were highly consistent, and none showed a statistically significant difference. At the individual level, Pearson or kappa correlations for 19 questions related to demographics and behavioral risk factors other than diet were greater than or equal to 0.60 (p less than 0.001) for all except routine checkup in the past 2 years (kappa = 0.54; p less than 0.001) and blood pressure measured in the past 2 years (crude concordance, 96%; kappa = 0.23; p less than 0.01). For 17 food items, correlations for frequency of consumption ranged from 0.44 to 0.76 (p less than 0.01). For a composite index of diet "atherogenicity" based on the 17 food items, r = 0.62 (p less than 0.001). This test-retest reliability study of the BRFS showed high consistency at the group level and acceptable to high item reliability at the individual level for the parts of the BRFS related to demographics, cardiovascular behavioral risk factors, and a 17-item nutrition module. Findings were generally consistent in all three ethnic groups.
行为风险因素调查（BRFS）是一种电话访谈，美国疾病控制中心（CDC）与各州卫生部门广泛使用该访谈来衡量与健康相关行为的患病率和时间趋势。我们通过在1989年7月和8月对145名随机选择的受试者进行重新访谈，评估了BRFS中与心血管疾病（吸烟、饮食、肥胖、运动和高血压）及人口统计学相关部分的可靠性，这些受试者在首次访谈完成后的10至21天内接受重新访谈。抽样和数据收集严格遵循CDC的程序。重新测试样本包括居住在纽约市曼哈顿北部的49名白人、43名黑人及53名西班牙裔。对整个样本以及每个种族群体分别就首次和第二次访谈时的六个人口统计学变量和12个行为风险因素变量进行组患病率或均值比较。所有这些比较高度一致，且均未显示出统计学上的显著差异。在个体层面，除过去2年的常规体检（kappa = 0.54；p < 0.001）和过去2年测量的血压（粗一致性为96%；kappa = 0.23；p < 0.01）外，与人口统计学和饮食以外的行为风险因素相关的19个问题的Pearson或kappa相关性均大于或等于0.60（p < 0.001）。对于17种食物，消费频率的相关性在0.44至0.76之间（p < 0.01）。基于这17种食物的饮食“致动脉粥样硬化性”综合指数，r = 0.62（p < 0.001）。这项BRFS的重测信度研究表明，在群体层面具有高度一致性，在个体层面，BRFS中与人口统计学、心血管行为风险因素及一个包含17项的营养模块相关部分的条目信度为可接受至高度。所有三个种族群体的研究结果总体一致。
