Department of Sports Science, Sports Science Faculty, Yogyakarta State University, Yogyakarta, Indonesia.
School of Public Health and Social Work and Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia.
J Prev Med Hyg. 2021 Jul 30;62(2):E421-E429. doi: 10.15167/2421-4248/jpmh2021.62.2.1878. eCollection 2021 Jun.
Psychometric evaluation of the 12-item Short-Form Health Survey (SF-12), a well-used scale for measuring health-related quality of life (HrQoL), has not been done in general populations in Indonesia. This study assessed the validity and reliability of the SF-12 in middle-aged and older adults.
Participants self-completed the SF-12 and SF-36. Scaling assumptions, internal consistency reliability, and 1-week test-retest reliability were assessed for the SF-12. Confirmatory factor analysis was conducted to assess its construct validity. Correlations between SF-12 and SF-36 component scores were computed to assess convergent and divergent validity. Effect size differences were calculated between SF-12 and SF-36 component scores for assessing criterion validity.
In total, 161 adults aged 46-81 years (70% female) participated in this study. Scaling assumptions were satisfactory. Internal consistency for the SF-12 Physical Component Summary (PCS-12) and the Mental Component Summary (MCS-12) were acceptable (a = 0.72 and 0.73, respectively) and test-retest reliability was excellent (ICC = 0.88 and 0.75, respectively). A moderate fit of the original two-latent structure to the data was found (root mean square error of approximation [RMSEA] = 0.08). Allowing a correlation between physical and emotional role limitation subscales improved fit (RMSEA = 0.04). Correlations between SF-12 and SF-36 component summary scores support convergent and divergent validity although a medium effect size difference between PCS-12 and PCS-36 (Cohen's d = 0.61) was found.
This study provides the first evidence that SF-12 is a reliable and valid measure of HrQoL in Indonesian middle-aged and older adults. The algorithm for computing SF-12 and its association with SF-36 in the Indonesian population warrant further investigation.
12 项简明健康量表（SF-12）是一种广泛用于衡量健康相关生活质量（HrQoL）的量表，但其在印度尼西亚一般人群中的心理测量学评估尚未进行。本研究评估了 SF-12 在中年和老年人中的有效性和可靠性。
参与者自行填写 SF-12 和 SF-36。评估了 SF-12 的定标假设、内部一致性信度和 1 周重测信度。进行验证性因子分析以评估其结构效度。计算 SF-12 与 SF-36 分量得分之间的相关性，以评估收敛和发散效度。计算 SF-12 与 SF-36 分量得分之间的效应量差异，以评估标准效度。
共有 161 名 46-81 岁的成年人（70%为女性）参加了这项研究。定标假设令人满意。SF-12 生理成分综合评分（PCS-12）和心理成分综合评分（MCS-12）的内部一致性可接受（分别为 a = 0.72 和 0.73），重测信度极好（ICC 分别为 0.88 和 0.75）。发现原始两因素结构与数据的中度拟合（近似均方根误差 [RMSEA] = 0.08）。允许身体和情感角色限制分量表之间存在相关性可改善拟合度（RMSEA = 0.04）。SF-12 与 SF-36 分量综合评分之间的相关性支持收敛和发散效度，尽管 PCS-12 和 PCS-36 之间存在中等效应量差异（Cohen's d = 0.61）。
本研究首次提供证据表明，SF-12 是印度尼西亚中年和老年人 HrQoL 的可靠和有效的衡量工具。SF-12 在印度尼西亚人群中的计算算法及其与 SF-36 的关联值得进一步研究。
