The effect of COVID-19 lockdown restrictions on oswestry disability index scores: a comparative cross-sectional study,European Spine Journal

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The effect of COVID-19 lockdown restrictions on oswestry disability index scores: a comparative cross-sectional study
European Spine Journal ( IF 2.6 ) Pub Date : 2022-09-20 , DOI: 10.1007/s00586-022-07382-w
Joshua Filer ₁ , Thomas Fleming ₁ , Stephen Morris ₁ , Neil Upadhyay ₁ , Priyan Landham ₁ , Michael Katsimihas ₁ , Ian Harding ₁

Affiliation

Purpose

Lockdown measures to combat the COVID-19 pandemic restricted social interactions and travel. This retrospective, observational study was conducted to evaluate the effect of lockdown restrictions on Oswestry Disability Index (ODI) scores in patients with spinal conditions.

Methods

Prospectively collected data from the British Spine Registry were retrospectively analysed in two groups. The study group included patients' baseline pre-operative ODI scores collected during the first national lockdown in the UK between March and May 2020. The reference group included ODI scores recorded during the same period in 2019, before the pandemic. Scores were compared between groups using the Mann–Whitney U test. We also calculated modified scores that omitted responses to questions related to travel and social life. These were compared using Wilcoxon matched-pairs signed-rank test and Bland–Altman analyses.

Results

The median ODI scores for the reference and lockdown groups were 49 and 45, respectively, with no significant differences in the mean ranks (p = 0.068). Comparisons of original and modified ODI scores showed different outcomes for each study group. No significant differences were observed in the lockdown group (p = 0.06). However, for the pre-COVID-19 reference group, there was a significant difference (p < 0.01). Bland–Altman analyses showed reasonable agreement between the methods for calculating ODI in both groups.

Conclusion

We found no clinically important differences in ODI scores between the two groups. The findings suggest that the ODI is reliable during lockdown situations and can be used with confidence in the future research using both retrospective and prospective data.

Level of evidence

Level 3.

中文翻译：

COVID-19 锁定限制对 oswestry 残疾指数分数的影响：比较横断面研究

目的

抗击 COVID-19 大流行的封锁措施限制了社交互动和旅行。这项回顾性观察性研究旨在评估锁定限制对脊柱疾病患者的 Oswestry 残疾指数 (ODI) 评分的影响。

方法

从英国脊柱登记处前瞻性收集的数据在两组中进行了回顾性分析。研究组包括在 2020 年 3 月至 2020 年 5 月英国第一次全国封锁期间收集的患者基线术前 ODI 分数。参考组包括在大流行之前的 2019 年同期记录的 ODI 分数。使用 Mann–Whitney U 检验比较各组之间的分数。我们还计算了修改后的分数，其中省略了对与旅行和社交生活相关的问题的回答。使用 Wilcoxon 配对符号秩检验和 Bland-Altman 分析对这些进行了比较。

结果

参考组和锁定组的 ODI 分数中位数分别为 49 和 45，平均排名没有显着差异 ( p = 0.068)。原始和修改后的 ODI 分数的比较显示每个研究组的不同结果。在锁定组中未观察到显着差异 ( p = 0.06)。然而，对于 COVID-19 之前的参照组，存在显着差异 ( p < 0.01)。Bland-Altman 分析显示两组中计算 ODI 的方法之间具有合理的一致性。