Table 2.

Association between family income and norovirus exposure – Ordinary Least Squares models.

	Log of family permanent income coefficients
Model specification	Groups of variables (added sequentially to the baseline model)
	Coefficients	95% CIa
M0b	0.08***	(0.02, 0.14)
M1c	0.09***	(0.03, 0.14)
M2d	0.09***	(0.03, 0.15)
M3d	0.09**	(0.02, 0.16)
M4d	0.05	(-0.03, 0.013)
M5d	0.01	(-0.07, 0.10)
M6d/Fully adjusted model)	0.002	(-0.08, 0.09)
Fully adjusted specification (only significant covariates)	0.004	(-0.08, 0.09)

^**Significant at the 5-percent level.

^***Significant at the 1-percent level.

^aCI: Confidence Interval.

^bUnadjusted association.

^cBaseline model; see Table 1.

^dVariables adjusted for in each model specification are detailed in Table 1.