Subgroup analyses on return to work in sick-listed employees with low back pain in a randomised trial comparing brief and multidisciplinary intervention

Table 4 Effect of multidisciplinary team-intervention compared with brief intervention in the new study group.

	HRR (95% CI)	P of interaction	n
No moderator*	1.14 (0.74-1.76)		120
Work-related models**
Job satisfaction, high	0.72 (0.38-1.38)	0.14	49
Job satisfaction, low	1.41 (0.77-2.57)		69
Influence on work planning	0.95 (0.58-1.54)	0.48	80
No influence on work planning	1.49 (0.57-3.93)		37
Health and work-related models**
At risk of losing job because of current sick leave	1.95 (0.78-4.88)	0.10	34
Not at risk of losing job because of current sick leave	0.95 (0.57-1.59)		82
Worried about losing job	1.84 (0.93-3.64)	0.11	50
Not worried about losing job	0.87 (0.49-1.54)		67
Permanently impaired work ability	1.40 (0.82-2.38)	0.47	71
Not permanently injured	0.93 (0.41-2.11)		42

*HRR was calculated in the multivariable model without the interaction term
**Adjusted for gender.
HRR (HR_{multidisciplinary group}/HR_{brief intervention}) was calculated for each level of the independent variable.

ISSN: 1471-2474