Table 2 Characteristics of the respondents by 24-h urinary potassium excretion
Characteristic | n | Potassium (mmol/24 h) | |
|---|---|---|---|
Mean (95% CI) | p value | ||
Gender | |||
 Men | 212 | 39 (37, 40) | 0.003* |
 Women | 212 | 35 (34, 38) | |
Age (years) | |||
 < 40 | 114 | 35 (33, 37) | 0.145 |
 40–60 | 200 | 38 (36, 40) | |
 > 60 | 110 | 37 (35, 40) | |
Locality | |||
 Urban | 181 | 36 (35, 38) | 0.349 |
 Rural | 243 | 37 (36, 39) | |
Ethnicity | |||
 Malay | 267 | 36 (35, 37) | 0.019* |
 Chinese | 52 | 42 (37, 47) |  |
 Indian | 19 | 38 (33, 43) |  |
 Others | 86 | 37 (35, 39) |  |
Monthly household income (RM) | |||
 Low (< 3860) | 305 | 36 (35, 38) | 0.287 |
 Middle (3860–8319) | 87 | 38 (35, 41) |  |
 High (≥ 8320) | 32 | 39 (34, 44) |  |
Body mass index (BMI) (kg/m2) | |||
 Underweight (< 18.5) | 10 | 34 (24, 44) |  |
 Normal (18.5–24.9) | 140 | 37 (35, 39) |  |
 Overweight (25.0–29.9) | 161 | 36 (34, 38) | 0.634 |
 Obese (≥ 30.0) | 113 | 38 (36, 40) | |