Centre de Médecine Physique et Réadaptation Notre Dame, Chamalières, France.
PLoS One. 2007 Aug 8;2(8):e706. doi: 10.1371/journal.pone.0000706.
Mass-media campaigns have been known to modify the outcome of low back pain (LBP). We assessed the impact on outcome of standardized written information on LBP given to patients with acute LBP.
A 3-month pragmatic, multicenter controlled trial with geographic stratification.
Primary care practice in France.
2752 patients with acute LBP.
An advice book on LBP (the "back book").
The main outcome measure was persistence of LBP three months after baseline evaluation.
2337 (85%) patients were assessed at follow-up and 12.4% of participants reported persistent LBP. The absolute risk reduction of reporting persistent back pain in the intervention group was 3.6% lower than in the control group (10.5% vs. 14.1%; 95% confidence interval [-6.3% ; -1.0%]; p value adjusted for cluster effect = 0.01). Patients in the intervention group were more satisfied than those in the control group with the information they received about physical activities, when to consult their physician, and how to prevent a new episode of LBP. However, the number of patients who had taken sick leave was similar, as was the mean sick-leave duration, in both arms, and, among patients with persistent pain at follow-up, the intervention and control groups did not differ in disability or fear-avoidance beliefs.
The level of improvement of an information booklet is modest, but the cost and complexity of the intervention is minimal. Therefore, the implications and generalizability of this intervention are substantial.
ClinicalTrials.gov NCT00343057.
大众媒体宣传活动已被证实可以改变腰痛（LBP）的结果。我们评估了向急性 LBP 患者提供标准化的 LBP 书面信息对结果的影响。
一项具有地理分层的 3 个月实用、多中心对照试验。
法国初级保健诊所。
2752 例急性 LBP 患者。
一本关于 LBP 的建议书（“背部书籍”）。
主要观察指标是基线评估后 3 个月 LBP 的持续存在。
2337 例（85%）患者接受了随访，12.4%的参与者报告有持续的 LBP。干预组报告持续背部疼痛的绝对风险降低了 3.6%（10.5%比 14.1%；95%置信区间[-6.3%；-1.0%]；调整聚类效应后的 p 值=0.01）。与对照组相比，干预组的患者对他们收到的关于体育活动、何时咨询医生以及如何预防新的 LBP 发作的信息更满意。然而，两组患者请病假的人数相似，病假持续时间的平均值也相似，在随访时有持续性疼痛的患者中，干预组和对照组在残疾或回避恐惧方面没有差异。
信息手册的改善程度有限，但干预的成本和复杂性最小。因此，这种干预的意义和普遍性是巨大的。
ClinicalTrials.gov NCT00343057。
