Chasens Eileen R, Ratcliffe Sarah J, Weaver Terri E
School of Nursing, University of Pittsburgh, Pittsburgh, PA, USA.
Sleep. 2009 Jul;32(7):915-9. doi: 10.1093/sleep/32.7.915.
The Functional Outcomes of Sleep Questionnaire (FOSQ), has been used in research and clinical practice to measure the impact of daytime sleepiness on activities of daily living. The purpose of this study was to develop a shorter version of the instrument (FOSQ-10) that may be more easily implemented in clinical practice.
Data from a study of CPAP-treated obstructive sleep apnea (OSA) patients (Sample 1) (n = 155, AHI = 63 +/- 31) were used to develop the FOSQ-10. Of the 30 original FOSQ items, 10 questions representing each of the 5 subscales were selected if they had a normal distribution of responses and the largest pre- to post-treatment effect size. The psychometric properties of the instrument were then evaluated with data from a second, independent sample of CPAP-treated OSA patients (n = 51 AH I = 51 +/- 28).
Internal consistency of the FOSQ-10 was alpha = 0.87. Pre-treatment correlations of the 2 scales was r = 0.96. After 3 months of treatment the correlation was r = 0.97 (P < 0.0001). Subscales were also highly correlated at baseline and following treatment. Effect sizes for both instruments were highly correlated and indicated ability to measure meaningful change. Differences were observed between scores on the FOSQ-10 for normal controls and OSA patients.
The FOSQ-10 is a psychometrically strong instrument that performs similarly to the long version. The rapidly completed and easily scored FOSQ-10 shows promise for application in the clinical setting.
睡眠功能结果问卷（FOSQ）已用于研究和临床实践，以测量日间嗜睡对日常生活活动的影响。本研究的目的是开发一个更简短的版本（FOSQ - 10），以便在临床实践中更易于实施。
来自一项对经持续气道正压通气（CPAP）治疗的阻塞性睡眠呼吸暂停（OSA）患者的研究（样本1）（n = 155，呼吸暂停低通气指数[AHI] = 63±31）的数据用于开发FOSQ - 10。在最初的30个FOSQ项目中，如果10个问题代表5个分量表中的每一个，且其回答具有正态分布且治疗前至治疗后的效应量最大，则选择这些问题。然后，使用来自经CPAP治疗的OSA患者的第二个独立样本（n = 51，AHI = 51±28）的数据评估该工具的心理测量特性。
FOSQ - 10的内部一致性系数α = 0.87。两个量表治疗前的相关性为r = 0.96。治疗3个月后，相关性为r = 0.97（P < 0.0001）。分量表在基线和治疗后也高度相关。两种工具的效应量高度相关，表明能够测量有意义的变化。正常对照组和OSA患者在FOSQ - 10上的得分存在差异。
FOSQ - 10是一种心理测量学性能强大的工具，其表现与长版本相似。快速完成且易于评分的FOSQ - 10在临床环境中的应用显示出前景。
