Esteve-Vives Joaquim, Rivera Javier, A Vallejo Miguel
Sección de Reumatología, Hospital General Universitari d'Alacant, Alicante, España.
Reumatol Clin. 2010 May-Jun;6(3):141-4. doi: 10.1016/j.reuma.2009.10.008. Epub 2010 Jan 27.
To compare the construct validity of three functional capacity questionnaires in patients with fibromyalgia.
Transversal multicentric study of 301 patients from fifteen rheumatology outpatient clinics in Spain. Scores of Health Assessment Questionnaire (HAQ), Fibromyalgia Health Assessment Questionnaire (FHAQ) and the physical function scale of the Fibromyalgia Impact Questionnaire (PF-FIQ) were compared with extreme groups of patients defined by four external indirect measures: 6Min Walk Test, a modified Borg Fatigue Scale, Lumbar Spine Flexion Test and Patient Global Passive Mobility Assessment. Standardized differences were determined and correlation coefficients were calculated between the three questionnaires scores.
All three questionnaires showed good construct validity, but the results obtained with the PF-FIQ were poorer. Correlations between HAQ and FHAQ were very high (0.92), but correlations between these two questionnaires and PF-FIQ were only moderate (0.59).
HAQ and FHAQ are more valid measures of functional capacity than the PF-FIQ. HAQ could be substituted by FHAQ in some settings because of its shorter format (only 8 items).
比较三种功能能力问卷在纤维肌痛患者中的结构效度。
对来自西班牙15个风湿病门诊的301例患者进行横向多中心研究。将健康评估问卷（HAQ）、纤维肌痛健康评估问卷（FHAQ）以及纤维肌痛影响问卷的身体功能量表（PF-FIQ）的得分，与通过四项外部间接测量方法定义的极端患者组进行比较：6分钟步行试验、改良的博格疲劳量表、腰椎前屈试验和患者整体被动活动度评估。确定标准化差异，并计算三种问卷得分之间的相关系数。
所有三种问卷均显示出良好的结构效度，但PF-FIQ的结果较差。HAQ与FHAQ之间的相关性非常高（0.92），但这两种问卷与PF-FIQ之间的相关性仅为中等（0.59）。
HAQ和FHAQ在功能能力测量方面比PF-FIQ更有效。在某些情况下，由于HAQ格式较短（仅8项），FHAQ可以替代HAQ。
