College of Stomatology, Chongqing Medical University, Chongqing, China.
Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China.
Community Dent Oral Epidemiol. 2022 Jun;50(3):171-179. doi: 10.1111/cdoe.12648. Epub 2021 Apr 19.
To establish and validate a short form of the self-management ability questionnaire (SMAQ) for chronic periodontitis patients.
A total of 480 chronic periodontitis patients were recruited and divided randomly in into two groups: development group and validation group. The item reduction process of the SMAQ was based on item response theory (IRT) and classical test theory (CTT). The resulting short form of the SMAQ was then validated using exploratory factor analysis (EFA), confirmatory factor analysis (CFA), convergent validity, internal consistency and test-retest reliability.
The item reduction process produced a 12-item short-form SMAQ (SMAQ-12). EFA results on the twelve items extracted three factors consistent with the original SMAQ and CFA results demonstrated acceptable goodness-of-fit indices of this three-factor structure. Moreover, the SMAQ-12 scores had high correlations with the original measure (r ≥0.904), good internal consistency and test-retest reliability.
The SMAQ-12 is an easy-to-use, reliable and valid measure for assessing self-management ability in patients with chronic periodontitis.
建立并验证慢性牙周炎患者自我管理能力问卷（SMAQ）的简短形式。
共招募 480 名慢性牙周炎患者，并将其随机分为两组：发展组和验证组。SMAQ 的项目删减过程基于项目反应理论（IRT）和经典测试理论（CTT）。然后使用探索性因子分析（EFA）、验证性因子分析（CFA）、收敛效度、内部一致性和重测信度对所得 SMAQ 简短形式进行验证。
项目删减过程产生了一个包含 12 个项目的简短形式 SMAQ（SMAQ-12）。十二项提取的 EFA 结果显示出与原始 SMAQ 一致的三个因子，CFA 结果表明该三因子结构具有可接受的拟合优度指数。此外，SMAQ-12 评分与原始量表高度相关（r≥0.904），具有良好的内部一致性和重测信度。
SMAQ-12 是一种简单易用、可靠且有效的评估慢性牙周炎患者自我管理能力的测量工具。
