Table 3.

Results of the generalized estimating equations (GEE) analyses of the association between interpersonal justice (higher values indicate lower levels of perceived justice) and frequent sickness absence (two periods or more during the previous 12 months), presented as risk ratios (RR) with 95% CIs

	Model 0		Model 1		Model 2		Model 3
Results for standard GEE	RR	95% CI	RR	95% CI	RR	95% CI	RR	95% CI
Interpersonal justice	1.14	1.10-1.18	1.13	1.09-1.16	1.12	1.09-1.16	1.14	1.10-1.12
Job insecurity	1.10	1.08-1.13	1.07	1.05-1.10	1.07	1.04-1.10	1.05	1.01-1.08
Justice*insecurity					1.00	0.88-1.13	1.01	0.98-1.04
Results for autoregressive GEE
Interpersonal justice			1.05	1.00-1.10	1.05	1.00-1.10	1.05	1.00-1.11
Job insecurity			1.08	1.04-1.12	1.08	1.04-1.12	1.07	1.03-1.11
Previous sickness absence			4.56	4.17-5.00	4.56	4.17-5.00	4.18	3.80-4.59
Justice*insecurity					0.99	0.95-1.04	0.98	0.02-1.03

Model 1: interpersonal justice, job insecurity, and time included contemporarily; Model 2: Model 1 plus interaction term included; Model 3: Model 2 plus age, sex, socio-economic position, and marital status