Tomlin G S, Holm M B, Rogers J C, Kwoh C K
Department of Occupational Therapy, University of Puget Sound, Tacoma, WA 98416, USA.
J Rheumatol. 1996 Sep;23(9):1524-30.
To compare statistical properties of data from the Health Assessment Questionnaire (HAQ) with those from an alternative version (AHAQ) that used a different scoring system for the item categories and disability index. Comparisons included descriptive statistics, correlations, and inferential statistics to determine whether the AHAQ would be a more sensitive measure of change in functional status.
The subjects were 107 adults diagnosed with rheumatoid arthritis and hospitalized for exacerbations in their arthritis or arthritis related joint surgery. Disability was assessed upon admission to hospital and at one year followup with the HAQ. AHAQ scores were generated for the item categories making up the disability index by taking the mean of the item scores in a category instead of the worst item score; the disability index was the mean of the alternative category scores.
The standard method of scoring the HAQ was found to generate greater variance on category scores, lower correlations between category scores and the total disability index, and lower correlations between first and 2nd administrations of the instrument, compared to the AHAQ. HAQ disability index scores also correlated slightly lower than those of AHAQ to scores from the HAQ pain scales, and to scores from 2 other measures of functional disability. In addition, the AHAQ was found to be more powerful in detecting functional changes at one year followup.
Because of its statistical properties the AHAQ scoring method may be preferable to the HAQ method when the instrument is used for documenting change in functional outcomes.
比较健康评估问卷（HAQ）的数据与另一个版本（AHAQ）的数据的统计特性，后者对项目类别和残疾指数使用了不同的评分系统。比较包括描述性统计、相关性和推断性统计，以确定AHAQ是否会是功能状态变化的更敏感指标。
研究对象为107名被诊断为类风湿性关节炎且因关节炎加重或与关节炎相关的关节手术而住院的成年人。在入院时和随访一年时用HAQ评估残疾情况。通过计算一个类别中项目分数的平均值而非最差项目分数来得出构成残疾指数的项目类别的AHAQ分数；残疾指数为替代类别分数的平均值。
与AHAQ相比，发现HAQ的标准评分方法在类别分数上产生更大的方差，类别分数与总残疾指数之间的相关性更低，且该工具第一次和第二次使用之间的相关性更低。HAQ残疾指数分数与HAQ疼痛量表分数以及另外两项功能残疾测量分数的相关性也略低于AHAQ。此外，发现AHAQ在检测一年随访时的功能变化方面更有效。
由于其统计特性，当该工具用于记录功能结果的变化时，AHAQ评分方法可能优于HAQ方法。
