Desikan R, Mason H L, Rupp M T, Skehan M
Washington University School of Medicine/BJC Healthcare, St. Louis, MO, USA.
Qual Life Res. 2002 Dec;11(8):739-51. doi: 10.1023/a:1020836719321.
The aim of this study was to compare the SF-36 and two disease-specific instruments--St. George's Respiratory Questionnaire (SGRQ) and Chronic Respiratory Disease Questionnaire (CRDQ) among chronic obstructive pulmonary disease (COPD) patients using healthcare utilization data. The three instruments were administered twice by telephone interview to 40 COPD patients separated by a 3-month interval. Healthcare utilization data were obtained for the 3 months immediately prior to each administration. Reliabilities for sub-scales on the three instruments ranged from 0.70 to 0.90 for the SF-36, from 0.78 to 0.85 for the SGRQ, and from 0.64 to 0.91 for the CRDQ. In general, the study sample had poor physical health, and somewhat better mental health. None of the demographic variables were significantly associated with either health status or utilization. Among the three instruments, the SF-36 explained the most variance in healthcare utilization. The aggregate scores such as the summary scores of the SF-36 and the total score of the SGRQ did not perform as well as the individual sub-scales of the respective instruments in explaining the variation in utilization. The conclusion that the SF-36 provides the best association to healthcare utilization data from among the three instruments studied should be interpreted with caution given the small sample size and relatively brief duration of the study.
本研究旨在利用医疗保健利用数据，比较慢性阻塞性肺疾病（COPD）患者中SF-36与两种疾病特异性工具——圣乔治呼吸问卷（SGRQ）和慢性呼吸系统疾病问卷（CRDQ）。通过电话访谈对40名COPD患者进行了两次这三种工具的调查，两次调查间隔3个月。在每次调查前3个月内获取医疗保健利用数据。三种工具各子量表的信度为：SF-36从0.70至0.90，SGRQ从0.78至0.85，CRDQ从0.64至0.91。总体而言，研究样本身体健康状况较差，心理健康状况稍好。没有任何人口统计学变量与健康状况或利用率显著相关。在这三种工具中，SF-36对医疗保健利用情况的解释差异最大。SF-36的汇总得分和SGRQ的总分等综合得分在解释利用率差异方面，不如各自工具的单个子量表表现好。鉴于样本量小且研究持续时间相对较短，对于SF-36在所研究的三种工具中与医疗保健利用数据关联最佳这一结论，应谨慎解读。
