Abstract：
OBJECTIVE: To develop a simple, practical methodology to equate or link equivalent domains of the 36-item Short-Form Health Survey (SF-36) and the Patient-Reported Outcomes Measurement Information System 29-item questionnaire (PROMIS-29) using the Rasch framework.
METHODS: In April 2016, the PROMIS-29 and SF-36 were completed by 1501 individuals selected to be representative of the French population. For each domain common to the two questionnaires, a Partial Credit Model was fitted to the items related to that dimension in the two questionnaires. These items were then calibrated on the same metric, which enabled the scores from one questionnaire to be associated with the scores from the other.
RESULTS: Six of the seven PROMIS-29 scales and five of the six SF-36 subscales (physical, pain, social, vitality, depression and anxiety domains) were equated or linked. Correspondence tables between scores, with a 95% confidence interval, were established for each domain. A freely available Stata macro program was developed to automatize the equating or linking process.
CONCLUSIONS: These results should facilitate comparisons across studies using the SF-36 and the PROMIS-29 in France. The equating or linking process developed is simple to implement and can be used in other countries and for other instruments.
METHODS: In April 2016, the PROMIS-29 and SF-36 were completed by 1501 individuals selected to be representative of the French population. For each domain common to the two questionnaires, a Partial Credit Model was fitted to the items related to that dimension in the two questionnaires. These items were then calibrated on the same metric, which enabled the scores from one questionnaire to be associated with the scores from the other.
RESULTS: Six of the seven PROMIS-29 scales and five of the six SF-36 subscales (physical, pain, social, vitality, depression and anxiety domains) were equated or linked. Correspondence tables between scores, with a 95% confidence interval, were established for each domain. A freely available Stata macro program was developed to automatize the equating or linking process.
CONCLUSIONS: These results should facilitate comparisons across studies using the SF-36 and the PROMIS-29 in France. The equating or linking process developed is simple to implement and can be used in other countries and for other instruments.
摘要：
目标：开发一种简单的，使用Rasch框架将36项简短形式健康调查（SF-36）和患者报告结果测量信息系统29项问卷（PROMIS-29）的等效领域等同或链接起来的实用方法。
方法：2016年4月，PROMIS-29和SF-36由1,501名代表法国人口的个体完成。对于两个问卷共有的每个领域，对两个问卷中与该维度相关的项目拟合了部分信用模型。然后在相同的度量标准上校准这些项目，这使得一份问卷的分数能够与另一份问卷的分数相关联。
结果：七个PROMIS-29量表中的六个和六个SF-36子量表中的五个（物理，疼痛,社会,活力,抑郁和焦虑领域)被等同或联系在一起。分数之间的对应表，95%的置信区间，为每个域建立。开发了一个免费的Stata宏观程序，以使等同或链接过程自动化。
结论：这些结果应有助于在法国使用SF-36和PROMIS-29的研究中进行比较。所开发的等同或链接过程易于实施，可在其他国家和其他文书中使用。
方法：2016年4月，PROMIS-29和SF-36由1,501名代表法国人口的个体完成。对于两个问卷共有的每个领域，对两个问卷中与该维度相关的项目拟合了部分信用模型。然后在相同的度量标准上校准这些项目，这使得一份问卷的分数能够与另一份问卷的分数相关联。
结果：七个PROMIS-29量表中的六个和六个SF-36子量表中的五个（物理，疼痛,社会,活力,抑郁和焦虑领域)被等同或联系在一起。分数之间的对应表，95%的置信区间，为每个域建立。开发了一个免费的Stata宏观程序，以使等同或链接过程自动化。
结论：这些结果应有助于在法国使用SF-36和PROMIS-29的研究中进行比较。所开发的等同或链接过程易于实施，可在其他国家和其他文书中使用。
