Cooper J E, Tate R B, Yassi A
Division of Occupational Therapy, University of Manitoba, Winnipeg.
Spine (Phila Pa 1976). 1998 Oct 1;23(19):2118-22. doi: 10.1097/00007632-199810010-00016.
A pre- versus postintervention with concurrent control group design was used to investigate the effect of a workplace-based early intervention program on perception of disability in nurses with low back injury.
This report examines changes over time in the components of the Oswestry Low Back Pain and Disability Questionnaire in two groups of back-injured nurses-those who received the early intervention program (study) and those who were not offered the program (control).
Early intervention programs can decrease morbidity, time lost from work, and compensation costs. Although perception of disability decreases, some residual disability remains, the nature of which is not clear.
The Oswestry Low Back Pain and Disability Questionnaire scores of 40 study nurses and 118 control nurses at time of injury and at 6 months after injury were examined. Analysis of variance was used to compare changes in mean overall scores over time. The proportion of nurses reporting disability on individual components of the Oswestry Low Back Pain and Disability Questionnaire at each time period was compared with the results of a chi-square test.
Overall Oswestry Low Back Pain and Disability Questionnaire scores were similar between study and control nurses at time of injury, but were significantly lower in study nurses at 6 months after injury. However, scores of individual Oswestry Low Back Pain and Disability Questionnaire components that related to job demands increased over time; this was most apparent in lifting, particularly in study nurses.
Although overall perception of disability decreased 6 months after injury, particularly in study nurses, disability in job-related activities persisted. Residual disability after back injury should be addressed in workplace-based prevention programs.
采用干预前与干预后及同期对照组设计，以调查基于工作场所的早期干预项目对腰伤护士残疾认知的影响。
本报告研究两组腰伤护士——接受早期干预项目的护士（研究组）和未接受该项目的护士（对照组）——在不同时间点Oswestry腰痛与残疾问卷各组成部分的变化情况。
早期干预项目可降低发病率、减少工作时间损失及补偿成本。虽然残疾认知有所降低，但仍存在一些残余残疾，其性质尚不清楚。
对40名研究组护士和118名对照组护士在受伤时及受伤后6个月的Oswestry腰痛与残疾问卷得分进行检查。采用方差分析比较平均总分随时间的变化。使用卡方检验比较每个时间段Oswestry腰痛与残疾问卷各单项中报告有残疾的护士比例。
受伤时，研究组和对照组护士的Oswestry腰痛与残疾问卷总分相似，但受伤后6个月，研究组护士的得分显著更低。然而，与工作要求相关的Oswestry腰痛与残疾问卷各单项得分随时间增加；这在提举方面最为明显，尤其是在研究组护士中。
虽然受伤后6个月总体残疾认知有所下降，尤其是在研究组护士中，但与工作相关活动中的残疾仍然存在。基于工作场所的预防项目应解决腰伤后的残余残疾问题。
