Cooper J E, Tate R B, Yassi A, Khokhar J
Occupational Therapy Department, Health Sciences Centre and School of Medical Rehabilitation, University of Manitoba, Winnipeg, Canada.
Spine (Phila Pa 1976). 1996 Oct 15;21(20):2329-36. doi: 10.1097/00007632-199610150-00005.
The effect of a workplace-based early intervention program on perceptions of pain and disability in nurses with low back injury was studied using a preintervention versus postintervention design with concurrent control group.
To examine the relationship and changes over time between pain and disability measures in two groups of back-injured nurses--those who received the early intervention program (study) and those who were not offered the program (control).
The relationship between back pain and disability is not straightforward. The effects of an intervention program on changes in perceptions of pain and disability over time have not been widely reported.
The Oswestry Low Back Disability Questionnaire and a visual analog pain scale were administered to 46 study nurses and 137 control nurses at time of injury and at 6 months after injury. Correlation and regression analyses were used to explore the relationships between the two measures. Changes over time were compared with analyses of variance.
Pain and disability were positively correlated in both groups at time of injury and at follow-up evaluation. Mean scores for pain and disability were lower at follow-up evaluation than at initial injury in both groups; study nurses had significantly (P < 0.01) lower scores at 6 months than nurses in the control group. Disability at time of injury predicted disability at 6 months only for nurses in the control group.
This workplace-based early intervention program decreased levels of pain and disability in back-injured nurses and altered the relationship between these two variables over a 6-month time interval.
采用干预前与干预后设计及同期对照组，研究一项基于工作场所的早期干预项目对腰伤护士疼痛感知和残疾认知的影响。
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））疼痛与残疾指标之间的关系及其随时间的变化。
背痛与残疾之间的关系并不简单。干预项目对疼痛感知和残疾认知随时间变化的影响尚未得到广泛报道。
在受伤时及受伤后6个月，对46名研究组护士和137名对照组护士进行奥斯威斯利腰痛残疾问卷和视觉模拟疼痛量表评估。采用相关性和回归分析来探究这两项指标之间的关系。通过方差分析比较随时间的变化。
在受伤时和随访评估时，两组的疼痛与残疾均呈正相关。两组随访评估时的疼痛和残疾平均得分均低于初次受伤时；研究组护士在6个月时的得分显著低于对照组护士（P < 0.01）。仅对照组护士受伤时的残疾情况可预测6个月时的残疾情况。
这项基于工作场所的早期干预项目降低了腰伤护士的疼痛和残疾水平，并在6个月的时间间隔内改变了这两个变量之间的关系。
