Research Article

Factors Associated with High Sodium Intake Assessed from 24-hour Urinary Excretion and the Potential Effect of Energy Intake

Table 1

General characteristics of the study participants stratified by sodium intake.

ParametersAll participants ()Sodium <2000 mg (n = 294)Sodium ≥2000 mg (n = 733) value

Sex, n (%)
 Male40680 (19.7%)326 (80.3%)<0.001

Age, n (%)
 20–29 years22665 (28.8%)161 (71.2%)0.754
 30–39 years451126 (28.2%)324 (71.8%)
 40–49 years19160 (31.4%)131 (68.6%)
 50–59 years15942 (4.1%)117 (11.4%)

Ethnicity, n (%)
 Malay873240 (27.5%)633 (72.5%)0.023
 Chinese5118 (35.3%)33 (64.7%)
 Indian298 (27.6%)21 (72.4%)
 Bumiputera Sabah5416 (29.6%)38 (70.4%)
 Bumiputera Sarawak2012 (60.0%)8 (40.0%)

Marital status, n (%)
 Single20662 (30.1%)144 (69.9%)0.338

Education level, n (%)
 Secondary and below22554 (24.0%)171 (76.0%)0.171
 Form 6/diploma413128 (31.0%)285 (69.0%)
 College/university380111 (29.2%)269 (70.8%)

Diabetes, n (%)
 Yes4711 (23.4%)37 (76.6%)0.250

Hypertension, n (%)
 Yes9321 (22.6%)72 (77.4%)0.520

BMI (kg/m2), n (%)
 Obese/overweight622152 (24.4%)470 (75.6%)<0.001

Abdominal obese, n (%)
 Yes586149 (25.4%)437 (74.6%)0.007

24 hr urine, mean ± SD
 Sodium (mg/d)2860.14 ± 1369.381459.83 ± 386.683421.79 ± 1210.39<0.001
 Creatinine (mg/L)1044.51 ± 494.59703.30 ± 382.811181.36 ± 467.660.034
 Volume (mL)1240.49 ± 555.531028.16 ± 501.361325.65 ± 534<0.001

Blood pressure, Mean ± SD
 Systolic BP (mmHg)121.23 ± 17.29119.24 ± 18.28122.04 ± 16.830.019
 Diastolic BP (mmHg)76.94 ± 11.1875.94 ± 11.1877.35 ± 11.170.068

Dietary intake, mean ± SD
 Energy (kcal/day)1794.31 ± 526.471687.28 ± 574.651837.35 ± 499.79<0.001
 Carbohydrate (g/d)224.49 ± 77.87212.26 ± 77.81229.41 ± 77.28<0.001
 Protein (g/d)74.88 ± 41.2667.04 ± 32.5378.09 ± 43.91<0.001
 Fat (g/d)64.88 ± 24.7761.75 ± 30.2566.15 ± 22.09<0.001
 Sodium (mg/d)2772.97 ± 1045.852561.43 ± 10652859.05 ± 1025.93<0.001
 Calcium (mg/d)494.95 ± 273.26484.39 ± 317.40499.19 ± 253.460.434
 Potassium (mg/d)1182.70 ± 494.211141.37 ± 571.671199.32 ± 458.770.091

Significant at value < 0.001. Significant at value < 0.05.