Wahl A, Burckhardt C, Wiklund I, Hanestad B R
Department of Public Health and Primary Health Care, University of Bergen, Norway.
Scand J Caring Sci. 1998;12(4):215-22.
The aim of this study was to adapt, validate, and test for reliability the Quality of Life Scale in Norwegian (QOLS-N) for patients suffering from psoriasis. Two hundred and eighty-two patients with psoriasis were included in the study. Self-reported health was measured using the SF-36. Disease severity was also measured in 95 patients using the Psoriasis Area and Severity Index (PASI). The reliability of the QOLS-N was computed using the internal consistency reliability (Cronbach's alpha) and the test-retest reliability test. Face and content validity and construct discriminant ability of the QOLS-N were assessed. The results indicated that the QOLS-N has highly satisfactory rates of test-retest reliability (r = 0.83) and internal consistency reliability (alpha 0.86). As expected, the QOLS-N had a lower correlation with physical health (r = 0.24, p < 0.000) and self-reported symptoms (r = -0.20, p < 0.001), and a higher correlation with mental health (r = 0.52, p < 0.000). The correlation with disease severity was not significant (-0.06). The results reported in the present paper are in accordance with those derived in other validation studies. The QOLS-N seems to be a reliable and valid measure of global quality of life in patients suffering from psoriasis.
本研究的目的是对挪威语版银屑病患者生活质量量表（QOLS-N）进行改编、验证并测试其信度。该研究纳入了282例银屑病患者。采用SF-36量表测量患者的自我报告健康状况。还对95例患者使用银屑病面积和严重程度指数（PASI）来测量疾病严重程度。通过内部一致性信度（克朗巴哈系数）和重测信度测试来计算QOLS-N的信度。评估了QOLS-N的表面效度、内容效度和结构判别能力。结果表明，QOLS-N具有非常令人满意的重测信度（r = 0.83）和内部一致性信度（α = 0.86）。正如预期的那样，QOLS-N与身体健康的相关性较低（r = 0.24，p < 0.000），与自我报告症状的相关性也较低（r = -0.20，p < 0.001），而与心理健康的相关性较高（r = 0.52，p < 0.000）。与疾病严重程度的相关性不显著（-0.06）。本文报告的结果与其他验证研究得出的结果一致。QOLS-N似乎是一种可靠且有效的测量银屑病患者总体生活质量的工具。
