ABSTRACT

Background

This study aimed to assess the psychometric properties of the SF-12 questionnaire (in comparison to the EQ-5D questionnaire also), based on a survey conducted on a sample representing the general population of Poland.

Methods

The respondents completed Polish versions of health-related quality of life (HRQoL) questionnaires: SF-12, EQ-5D-5L, EQ VAS, and EQ-5D-3L, together with demographic and socioeconomic characteristic items. The following psychometric properties were analyzed: informativity power, ceiling and floor effects, reliability, and construct validity. We also conducted an exploratory factor analysis.

Results

A total of 3,896 respondents (mean age 48.3 years, 53.2% female) were included in the analysis. The results showed exceptional informativity power of SF-12 items. We did not observe any ceiling and floor effects for the PCS and MCS components. The high values of the Cronbach’s alpha coefficients confirmed the reliability of SF-12. Our hypothesis about lower scores for the summary components among older respondents, females and patients having declared diabetes was confirmed. The results of factor analysis also provided evidence for a positive assessment of construct validity.

Conclusions

Our results confirmed that the Polish version of the SF-12 questionnaire is a valid instrument for use in HRQoL assessment among the general population of Poland.

中文翻译：

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波兰版 SF-12v2 在普通人群调查中的心理测量特性

摘要

背景

本研究旨在评估 SF-12 问卷的心理测量特性（也与 EQ-5D 问卷相比），基于对代表波兰一般人群的样本进行的调查。

方法

受访者完成了波兰语版本的健康相关生活质量 (HRQoL) 问卷：SF-12、EQ-5D-5L、EQ VAS 和 EQ-5D-3L，以及人口和社会经济特征项目。分析了以下心理测量特性：信息能力、天花板和地板效应、可靠性和结构效度。我们还进行了探索性因素分析。

结果

共有 3,896 名受访者（平均年龄 48.3 岁，53.2% 为女性）被纳入分析。结果表明 SF-12 项目具有非凡的信息能力。我们没有观察到 PCS 和 MCS 组件的任何天花板和地板效应。Cronbach's alpha 系数的高值证实了 SF-12 的可靠性。我们关于年龄较大的受访者、女性和已宣布患有糖尿病的患者的总结部分得分较低的假设得到了证实。因子分析的结果也为结构效度的积极评估提供了证据。

结论

我们的结果证实，波兰语版本的 SF-12 问卷是用于波兰普通人群 HRQoL 评估的有效工具。