Chong Song Ying, Danaee Mahmoud, Ganesan Dharmendra
Faculty of Medicine, University Malaya, Kuala Lumpur, Malaysia.
Social and Preventive Medicine, Faculty of Medicine, University Malaya, Kuala Lumpur, Malaysia.
Asian Spine J. 2023 Jun;17(3):538-548. doi: 10.31616/asj.2022.0293. Epub 2023 Feb 6.
Validation of a novel retrospective comparative questionnaire to obtain post-intervention outcome data in patients with lumbar degenerative spinal disease.
Acquiring prospective outcome data for spinal intervention is not frequently feasible in resource-depleted units in certain developing countries. Therefore, a novel retrospective instrument is being validated for clinical use, which can act as a standard method to describe outcomes when data are retrospectively collected.
The standard method of collecting outcome data after a spinal intervention has been prospective, including the Oswestry Disability Index, Roland-Morris Questionnaire, and Short Form-36. The process of content validation and reliability of the novel retrospective spinal questionnaires is highlighted.
Questionnaire items were created based on a literature review, followed by a process of content validation by experts and modification based on expert opinions to achieve an acceptable content validity index (CVI, 0.70-1.00). To calculate factor loadings for each question, a pilot test was subsequently conducted from a pool of patients who underwent lumbar spine surgeries for degenerative spine diseases.
All items achieved a CVI of >0.85 for both relevancy and clarity and were successfully validated after appropriate corrections were made before the second validation phase. Except for Q9 and Q10, which showed low-loading factors in the pooled sample, the remainder of the items had acceptable loading factors across different subgroups, indicating that the passage of time did not affect the results of the exploratory factor analysis.
The retrospective questionnaire that encompasses the general well-being and lumbar-specific symptoms is a valid and reliable instrument to provide an impression of the outcome after intervention in a patient with a degenerative lumbar spinal disease. A summative score will indicate the overall outcome.
验证一种新型回顾性比较问卷，以获取腰椎退行性脊柱疾病患者的干预后结局数据。
在某些发展中国家资源匮乏的单位中，获取脊柱干预的前瞻性结局数据通常不可行。因此，一种新型回顾性工具正在进行临床验证，当进行回顾性数据收集时，它可作为描述结局的标准方法。
脊柱干预后收集结局数据的标准方法一直是前瞻性的，包括奥斯威斯利残疾指数、罗兰-莫里斯问卷和简短健康调查问卷-36。重点介绍了新型回顾性脊柱问卷的内容验证和可靠性过程。
基于文献综述创建问卷项目，随后由专家进行内容验证，并根据专家意见进行修改，以达到可接受的内容效度指数（CVI，0.70 - 1.00）。为计算每个问题的因子载荷，随后从接受腰椎退行性脊柱疾病手术的患者群体中进行了预试验。
所有项目在相关性和清晰度方面的CVI均>0.85，在第二个验证阶段之前进行适当校正后成功验证。除了Q9和Q10在汇总样本中显示低载荷因子外，其余项目在不同亚组中具有可接受的载荷因子，表明时间的推移并未影响探索性因子分析的结果。
包含总体健康状况和腰椎特异性症状的回顾性问卷是一种有效且可靠的工具，可用于描述腰椎退行性脊柱疾病患者干预后的结局情况。汇总评分将表明总体结局。
