Table 5.

Ordinal regression analysis of the association between the status of blood pressure and daily salt intake among Chinese participants living in Ningbo city

Salt intakea	ORc	P-value	95% CI
			Lower Bound	Upper Bound
Model 1b	1.009	0.014	1.002	1.016
Model 2b	1.006	0.064	1.000	1.012
Model 3b	1.006	0.044	1.000	1.013

OR odds ratio; CI: confidence interval

^aHypertension reference category in the model

^bModel 1: Unadjusted; Model 2, adjusted for gender, age and education level; Model 3, Model 2 further adjusted for lifestyle factors