Department of Physical , Virginia Commonwealth University, Richmond, Virginia 23298-0224, USA.
Pain Med. 2013 Feb;14(2):265-75. doi: 10.1111/pme.12007. Epub 2012 Dec 13.
A recent trend in clinical practice is to adopt short screening and diagnostic self-report instruments for patients with chronic pain. Brief two-item pain coping and beliefs measures have recently been developed and have potential to improve decision making in clinical practice. Our study examined the construct and criterion-based validity of the two-item per scale version of the coping strategies questionnaire (CSQ).
We used data obtained on a community-based sample of 873 persons with chronic knee osteoarthritis pain from the Osteoarthritis Initiative, a large longitudinal cohort study. Persons were administered the two-item per scale version of the CSQ. The International Classification of Functioning framework was used to select a variety of criterion-based measures for comparison with the CSQ. Spearman correlations and hierarchical regression models were used to characterize construct validity and receiver operating characteristic (ROC) curves, sensitivity and specificity were used to describe criterion-based validity.
Construct validity of the CSQ scales was generally supported, with the Catastrophizing and Praying or Hoping scales demonstrating the strongest construct validity across criterion measures. Criterion-based validity for the CSQ scales varied depending on the criterion measure. The Catastrophizing and Praying or Hoping scales also had the strongest criterion-based validity, with ROC curve areas as high as 0.71 (95% confidence interval = 0.67, 0.75), P < 0.001, for identifying persons with substantial physical function deficits.
The findings suggest that several of the two-item CSQ scales demonstrate a modest level of construct validity along with fair criterion-based validity. The Catastrophizing and Praying or Hoping scales appear to hold the most promise for clinical applications and future longitudinal research.
临床实践中的一个新趋势是采用简短的筛查和诊断自评工具来评估慢性疼痛患者。最近开发了简短的双项目疼痛应对和信念测量工具，有可能改善临床实践中的决策。本研究旨在检验双项目量表版本应对策略问卷（CSQ）的结构和基于标准的有效性。
我们使用了来自大型纵向队列研究骨关节炎倡议（Osteoarthritis Initiative）的 873 名慢性膝关节骨关节炎疼痛患者的社区样本数据。对患者进行了 CSQ 的双项目量表版本测试。采用国际功能分类框架选择了多种基于标准的测量指标与 CSQ 进行比较。采用 Spearman 相关和层次回归模型来描述结构有效性，采用接收者操作特征（ROC）曲线、敏感性和特异性来描述基于标准的有效性。
CSQ 量表的结构有效性得到了普遍支持，灾难化和祈祷或希望量表在各种标准测量指标中表现出最强的结构有效性。CSQ 量表的基于标准的有效性因标准测量指标而异。灾难化和祈祷或希望量表也具有最强的基于标准的有效性，ROC 曲线面积高达 0.71（95%置信区间为 0.67，0.75），P<0.001，可用于识别身体功能严重缺陷的患者。
研究结果表明，双项目 CSQ 量表中的几种量表具有一定的结构有效性和良好的基于标准的有效性。灾难化和祈祷或希望量表在临床应用和未来的纵向研究中似乎具有最大的应用潜力。
