Table 3.

Odds Ratio (95% Confidence Interval) of Chronic Kidney Disease by Quartiles of Dietary Sodium Intake

Sodium Intake (mg/day)	≤ 2116	2117–3061	3062–4267	> 4267
Unadjusted	1.00 (REF)	0.77 (0.66 to 0.90)	0.52 (0.44 to 0.61)	0.46 (0.40 to 0.53)
Model 1	1.00 (REF)	0.84 (0.71 to 0.99)	0.67 (0.54 to 0.82)	0.77 (0.64 to 0.92)
Model 2	1.00 (REF)	0.85 (0.71 to 1.02)	0.68 (0.55 to 0.85)	0.79 (0.66 to 0.96)

Model 1: Adjusted for age, sex, race/ethnicity, body mass index, diabetes and hypertension

Model 2: Adjusted for covariates in Model 1 plus congestive heart failure and cardiovascular disease