SF-36 summary scores - Are physical and mental health truly distinct?
SF-36 summary scores - Are physical and mental health truly distinct?
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DOI：
10.1097/00005650-199804000-00012
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发表时间：
1998-04-01
期刊：
影响因子：
3
通讯作者：
Vonkorff, M
中科院分区：
文献类型：
--
作者：
Simon, GE;Revicki, DA;Vonkorff, M
目标。来自536名开始抗抑郁治疗的初级保健患者的数据被用来检验医疗结果研究SF-36身体部分和精神部分摘要分数的表现。方法：在基线时使用SF-36，并在1个月和3个月后复查(n=482)。结果：在基线评估中，患者报告在身体功能、角色-身体、身体疼痛和一般健康知觉子量表上有轻微的损害(低于国家常模0.10到0.68标准差)，但身体成分概要(平均值=51)表明，基于50人的人群常模，没有损害。在3个月的随访评估中，身体功能、角色-身体、身体疼痛和一般健康感子量表均有中度和统计学上的显著改善(范围从0.28到0.49个标准差单位)，而身体成分总分基本没有变化(1个月和3个月评估的平均值=50)。这种结果模式是计算这些总分的假设和方法的自然结果--正交因素轮换和负得分系数。结论：这些发现表明，当兴趣的条件或治疗对具有负分系数的量表(对于身体部分为心理健康和角色-情绪；对于精神部分为身体功能、角色-身体和身体疼痛)有强烈影响时，在解释心理部分和身体部分摘要分数时要谨慎。
OBJECTIVES. Data from 536 primary care patients initiating antidepressant treatment were used to examine the performance of the Medical Outcomes Study SF-36 Physical Component and Mental Component summary scores.METHODS. The SF-36 was administered at baseline and readministered after 1 month and 3 months (n = 482).RESULTS. At the baseline assessment, patients reported modest impairment on the Physical Function, Role-Physical, Bodily Pain, and General Health Perceptions subscales (0.10 to 0.68 standard deviations below national norms), but the Physical Component summary (mean = 51) indicated no impairment based on a population norm of 50. During 3 months of follow-up evaluation, the Physical Function, Role-Physical, Bodily Pain, and General Health Perceptions subscales all showed moderate and statistically significant improvement (range from 0.28 to 0.49 standard deviation units), whereas the Physical Component summary score was essentially unchanged (mean = 50 at both 1-month and 3-month assessments). This pattern of results is a natural consequence of the assumptions and methods used to calculate these summary scores-orthogonal factor rotation and negative scoring coefficients.CONCLUSIONS. These findings suggest caution in the interpretation of Mental Component Summary and Physical Component Summary scores when the condition or treatment of interest has strong effects on scales with negative scoring coefficients (Mental Health and Role-Emotional for the Physical Component; Physical Function, Role-Physical, and Bodily Pain for the Mental Component).