. 2010 Oct 26;10:648. doi: 10.1186/1471-2458-10-648

Table 5.

Multivariate analysis of sickness absence spells and days and poor self assessed work ability.

Variables	Sick-leave spells^b	Sick-leave days^b	Poor work ability^c
	RR^a(95% CI)	RR^a(95% CI)	OR^a(95% CI)

I Work environment	1.09 (0.95-1.25)	1.00 (0.84-1.19)	1.39 (0.98-1.98)
II Emotional support	1.36 (1.11-1.67)**	1.68 (1.22-2.31)**	1.58 (1.02-2.46)*
III Psychological resources	0.96 (0.82-1.11)	1.15 (0.94-1.41)	0.62 (0.44-0.89)**
Previous back pain	0.82 (0.60-1.11)	1.38 (0.89-2.13)	2.56 (1.13-5.81)*

RR = rate ratio; OR = odds ratio; CI = confidence interval;*p < 0.05; **p < 0.01;

^aRRs and ORs are adjusted for age, sex, BMI, smoking, alcohol consumption, SES, disease (self report of diagnosis), past sickness absence, and all other variables in the table.

^bPoisson regression.

^cLogistic regression.