Solum Sezin, Salbaş Ender
Bursa City Hospital, Turkey.
Balikesir University Medical Faculty, Turkey.
Eval Health Prof. 2025 Sep;48(3):347-354. doi: 10.1177/01632787241307031. Epub 2024 Dec 10.
The Low Back Activity Confidence Scale (LoBACS) is a 15-item scale designed to assess low back pain (LBP) through self-efficacy, a key predictor of functional recovery. This study aimed to culturally adapt and evaluate the validity and reliability of the Turkish version of LoBACS in patients with LBP. The translation and adaptation followed Beaton et al.'s protocol. Content and face validity were assessed with a pre-patient group. Both exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) were performed to evaluate construct validity. Internal consistency, as well as test-retest reliability, were evaluated in a sample of 150 patients aged 18-70 years. Concurrent validity was measured alongside the Oswestry Back Pain Disability Questionnaire (ODQ) and Quebec Back Pain Disability Scale (QBPDS). Two factors emerged from factor analysis, with item loadings for Functional Self-efficacy (FnSE) ranging from 0.745 to 0.896 and for Self-Regulatory and Exercise Self-efficacy (Self-Reg&ExSE) from 0.817 to 0.940. Cronbach's alpha was high for FnSE, Self-Reg&ExSE, and the total scale (α = 0.941). Total correlation for each item ranged between 0.770 and 0.925. Test-retest reliability was also high (r = 0.941, < .01). LoBACS showed moderate agreement with ODQ and QBPDS, demonstrating concurrent validity. In conclusion, the Turkish version of LoBACS is a valid and reliable tool for measuring LBP-related self-efficacy.
下背部活动信心量表（LoBACS）是一个包含15个条目的量表，旨在通过自我效能感来评估下背部疼痛（LBP），自我效能感是功能恢复的关键预测指标。本研究旨在对LoBACS土耳其语版本进行文化调适，并评估其在LBP患者中的有效性和可靠性。翻译和调适遵循Beaton等人的方案。通过一个预患者组评估内容效度和表面效度。进行探索性因素分析（EFA）和验证性因素分析（CFA）以评估结构效度。在150名年龄在18至70岁的患者样本中评估内部一致性以及重测信度。与奥斯威斯瑞下背痛残疾问卷（ODQ）和魁北克下背痛残疾量表（QBPDS）一起测量同时效度。因素分析得出两个因素，功能自我效能感（FnSE）的项目载荷范围为0.745至0.896，自我调节和运动自我效能感（Self-Reg&ExSE）的项目载荷范围为0.817至0.940。FnSE、Self-Reg&ExSE以及总量表的克朗巴哈系数较高（α = 0.941）。每个条目的总相关性在0.770至0.925之间。重测信度也较高（r = 0.941，P <.01）。LoBACS与ODQ和QBPDS显示出中度一致性，证明了同时效度。总之，LoBACS土耳其语版本是测量与LBP相关自我效能感的有效且可靠的工具。
