National Research Centre for the Working Environment, Lersø Parkallé 105, 2100 Copenhagen, Denmark.
BMC Public Health. 2011 Nov 1;11:840. doi: 10.1186/1471-2458-11-840.
Only a few workplace initiatives among cleaners have been reported, even though they constitute a job group in great need of health promotion. The purpose of this trial was to evaluate the effect of either physical coordination training or cognitive behavioural training on musculoskeletal pain, work ability and sickness absence among cleaners.
A cluster-randomised controlled trial was conducted among 294 female cleaners allocated to either physical coordination training (PCT), cognitive behavioural training (CBTr) or a reference group (REF). Questionnaires about musculoskeletal pain and work ability were completed at baseline and after one year's intervention. Sickness absence data were obtained from the managers' records. Analyses were performed according to the intention-to-treat-principle (ITT).
No overall reduction in musculoskeletal pain, work ability or sickness absence from either PCT or CBTr compared with REF was found in conservative ITT analyses. However, explorative analyses revealed a treatment effect for musculoskeletal pain of the PCT. People with chronic neck/shoulder pain at baseline were more frequently non-chronic at follow-up after PCT compared with REF (p = 0.05).
The PCT intervention appeared effective for reducing chronic neck/shoulder pain among the female cleaners. It is recommended that future interventions among similar high-risk job groups focus on the implementation aspects of the interventions to maximise outcomes more distal from the intervention such as work ability and sickness absence.
ISRCTN: ISRCTN96241850.
尽管清洁工是非常需要健康促进的工作群体之一，但仅有少数针对他们的工作场所干预措施被报道。本试验旨在评估身体协调训练或认知行为训练对清洁工肌肉骨骼疼痛、工作能力和病假的影响。
采用整群随机对照试验，将 294 名女性清洁工分为身体协调训练组（PCT）、认知行为训练组（CBTr）或参照组（REF）。在基线和干预 1 年后，使用问卷评估肌肉骨骼疼痛和工作能力。病假数据从经理的记录中获得。分析按照意向治疗原则（ITT）进行。
在保守的 ITT 分析中，与 REF 相比，PCT 或 CBTr 对肌肉骨骼疼痛、工作能力或病假均无总体减少。然而，探索性分析显示 PCT 对肌肉骨骼疼痛有治疗作用。与 REF 相比，基线时有慢性颈肩部疼痛的人在 PCT 后随访时更常变为非慢性（p=0.05）。
PCT 干预似乎对减少女性清洁工的慢性颈肩部疼痛有效。建议未来针对类似高风险工作群体的干预措施注重干预措施的实施方面，以最大限度地提高更远离干预措施的结果，如工作能力和病假。
ISRCTN: ISRCTN96241850。
