Department of Orthotics and Prosthetics, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran.
Iran-Helal Institute of Applied Science and Technology, Tehran, Iran.
Spine Deform. 2022 Mar;10(2):317-326. doi: 10.1007/s43390-021-00414-3. Epub 2021 Sep 17.
This study investigates the reliability and validity of the adapted Persian version of the Spinal Appearance Questionnaire (P-SAQ).
The stages of cross-cultural adaptation were conducted according to an internationally accepted guidelines. Reliability of the P-SAQ was measured by evaluating internal consistency and test-retest reproducibility using Cronbach's α and intraclass correlation coefficient (ICC). Validity of the P-SAQ was assessed by factor analysis, and convergent and known-groups validities. Convergent validity was assessed through participant response on the P-SAQ and the revised 22-item Persian version of the Scoliosis Research Society (SRS-22r) questionnaire. Known-groups validity was assessed by comparing the P-SAQ scores according to the patients curve magnitude and treatment type.
A total of 106 patients with a diagnosis of adolescent idiopathic scoliosis (AIS) were included. The P-SAQ demonstrated an acceptable internal consistency with a Cronbach's α of 0.77 (range 0.65-0.72). The test-retest reliability was excellent (range ICC 0.85-0.98). There was a correlation between the total score, average scores of the general, curve, rib prominence, kyphosis, and trunk shift subscales of the P-SAQ and subtotal and total scores of the SRS-22r, r = - 0.2 to - 0.4, p < 0.05. The P-SAQ discriminated between patients with differing Cobb angle magnitudes and treatment types (p < 0.01). Factor analysis supported the use of the appearance and expectations items as separate scales for the P-SAQ.
The P-SAQ is a valid and reliable tool that could be utilized to evaluate the perception of appearance for Persian-speaking AIS patients with different curve magnitude and treatment strategies.
Level I- diagnostic studies.
本研究旨在检验经跨文化调适后的 Persian 版脊柱外观问卷（P-SAQ）的信度和效度。
根据国际公认的准则，进行跨文化调适各阶段工作。采用 Cronbach's α 和组内相关系数（ICC）评估 P-SAQ 的内部一致性和重测信度，以评估其信度。通过因子分析、聚合效度和已知组效度评估 P-SAQ 的效度。聚合效度通过 P-SAQ 和经修订的 22 项 Persian 版脊柱侧凸研究学会问卷（SRS-22r）的参与者反应进行评估。通过根据患者的曲线幅度和治疗类型比较 P-SAQ 评分来评估已知组的有效性。
共纳入 106 例青少年特发性脊柱侧凸（AIS）患者。P-SAQ 的 Cronbach's α 为 0.77（范围为 0.65-0.72），表明具有可接受的内部一致性。重测信度极好（ICC 范围为 0.85-0.98）。P-SAQ 的总分、一般、曲线、肋骨突出、后凸和躯干移位子量表的平均评分与 SRS-22r 的总分和子总分之间存在相关性（r=-0.2 至-0.4，p<0.05）。P-SAQ 可区分 Cobb 角大小和治疗类型不同的患者（p<0.01）。因子分析支持将外观和期望项目作为 P-SAQ 的单独量表使用。
P-SAQ 是一种有效且可靠的工具，可用于评估不同曲线幅度和治疗策略的 Persian 语 AIS 患者的外观感知。
1 级-诊断研究。
