Intra- and inter-rater reliability of the Individual Lifestyle Profile (ILP) questionnaire for individuals with musculoskeletal pain

ABSTRACT The aim of this study was to test all the reliability properties of the Individual Lifestyle Profile (ILP) in patients with musculoskeletal pain. A total of 105 patients with musculoskeletal pain participated in this study after being recruited from a public secondary physical therapy care. ILP was applied by Rater 1 at the initial assessment and by Rater 2 after one hour. After three to seven days of the initial assessment, Rater 1 reapplied ILP. ILP and its components showed internal consistency from 0.27 to 0.61 and intra- and inter-rater reliability values from moderate to excellent (ICC=0.68 to 0.90) and from moderate to almost perfect (K=0.59 to 0.83). Percent agreement was 61% to 98%, the SEM of ILP was 4.1 points and the MDC was 5.7 points. We conclude that ILP is a reliable instrument to assess the lifestyle of patients with musculoskeletal pain.

摘要 本研究旨在检验肌肉骨骼疼痛患者所使用的个人生活方式概况量表（Individual Lifestyle Profile, ILP）的全部信度属性。研究从公立二级物理治疗机构招募受试者，最终共有105名肌肉骨骼疼痛患者参与本次研究。评定者1于初始评估时实施ILP测评，评定者2在1小时后重复开展该测评。初始评估完成后的3至7天，评定者1再次对受试者实施ILP测评。结果表明，ILP及其各组成维度的内部一致性信度介于0.27至0.61之间；评定者内及评定者间信度分别表现为中等至优秀（组内相关系数（Intraclass Correlation Coefficient, ICC）=0.68~0.90）与中等至近乎完美（Kappa系数（K）=0.59~0.83）。百分一致率为61%至98%，ILP的测量标准误（Standard Error of Measurement, SEM）为4.1分，最小可检测变化量（Minimal Detectable Change, MDC）为5.7分。本研究最终得出结论：ILP是一款用于评估肌肉骨骼疼痛患者生活方式的可靠测评工具。