Effects on musculoskeletal pain, work ability and sickness absence in a 1-year randomised controlled trial among cleaners

Table 3 Primary outcomes from baseline to follow-up in intention-to-treat sample.

		Physical coordination training			Cognitive behavioural training			Reference
		n	Baseline	Follow-up	n	Baseline	Follow-up	n	Baseline	Follow-up
Neck pain	(%> 30 days)	82	41	37	93	33	30	86	30	27
Right shoulder pain	(%> 30 days)	83	33	27	91	33	29	87	25	25
Left shoulder pain	(%> 30 days)	82	27	23	90	30	29	86	27	28
Lower back pain	(%> 30 days)	83	36	36	92	27	26	86	35	36
Work ability	(mean 0-10 (SD))	81	7.6 (2.0)	7.8 (1.9)	89	7.5 (2.1)	7.5 (2.1)	87	7.3 (2.2)	7.4 (2.4)
Sickness absence days	(Median)	95	4.0	4.25	99	3.0	3.0	100	3.0	2.0
Sickness absence	(Mean spells)	95	1.622	1.356	99	1.281	1.354	100	1.64	1.281

n = number of observations (including observations carried forwards and backwards for intention-to-treat analyses), SD = standard deviation, Spells = number of sickness absence periods.

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