Table 3.

Relative risk of societal indices, population density and societal cluster.

Relative risk was estimated by the hierarchical Poisson regression.
		Male colon cancer		Male lung cancer		Female breast cancer
Variable		Crude	Adjusted a	Crude	Adjusted a	Crude	Adjusted a
Societal Index	Index 1	1.104	1.062	1.055	1.039	1.124	1.077
	Index 2	1.040	1.005*	0.964	0.952	1.097	1.061
Population density (log)		1.064	1.039	1.010	1.017	1.101	1.039
Societal cluster	SC1b	1.000	-	1.000	-	1.000	-
	SC2	0.903	-	1.011*	-	0.827	-
	SC3	0.779	-	0.974*	-	0.658	-
	SC4	0.993*	-	1.179	-	0.969	-

^aThe model included societal indices and population density. ^bThe reference for societal clusters. *not significant (p > = 0.05)