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. 2019 Jan 8;109(1):139–147. doi: 10.1093/ajcn/nqy285

TABLE 3.

Association between usual sodium excretion (independent variable) and overweight/obesity status (dependent variable) among US adults aged 20–69 y, NHANES 20141

Midvalue of quartiles of estimated usual sodium excretion, PR (95% CI)
Q1: 12.5th percentile Q2: 37.5th percentile Q3: 62.5th percentile Q4: 87.5th percentile P-trend
Usual sodium excretion,2 mg 2505 3176 3753 4662
Overweight/obesity
 Model 1 Ref 1.33 (1.24, 1.43) 1.61(1.44, 1.79) 1.86 (1.64, 2.12) <0.001
 Model 2 Ref 1.36 (1.26, 1.46) 1.60 (1.44, 1.79) 1.87 (1.65, 2.13) <0.001
 Model 3 Ref 1.38 (1.28, 1.49) 1.65 (1.48, 1.85) 1.93 (1.69, 2.20) <0.001
 Model 4 Ref 1.35 (1.26, 1.45) 1.60 (1.44, 1.77) 1.86 (1.64, 2.11) <0.001
Central adiposity
 Model 1 Ref 1.30 (1.20, 1.40) 1.59 (1.40, 1.81) 1.97 (1.66, 2.34 <0.001
 Model 2 Ref 1.33 (1.23, 1.43) 1.60 (1.41, 1.81) 2.00 (1.69, 2.37) <0.001
 Model 3 Ref 1.35 (1.25, 1.46) 1.65 (1.45, 1.88) 2.07 (1.74, 2.46) <0.001
 Model 4 Ref 1.32 (1.22, 1.43) 1.60 (1.41, 1.81) 1.99 (1.68, 2.36) <0.001
1

The unweighted sample size in each model is 730. P values for trend across percentiles of estimated usual sodium intake based on Satterthwaite adjusted F test; all tests were 2-sided. Model 1 adjusted for age, sex, and race–Hispanic origin; model 2 adjusted for age, sex, race-Hispanic origin, physical activity, alcohol consumption, smoking status, and educational attainment; model 3 adjusted for covariates of model 2 plus usual total energy intake; model 4 adjusted for covariates of model 2 plus usual sugar-sweetened beverage intake. PR, prevalence ratio; Q, quartile; Ref, reference.

2

This row shows midvalues of quartiles of estimated usual sodium excretion.