Table 5.
Multivariate regression analyses for differences in blood pressure and urinary Na and K excretion between W2 and W3 in the independent sample.
| Outcome | β of change from W2 to W3 | Std.Err. | p-value | n sample |
|---|---|---|---|---|
| SBP | 0.94 | 0.92 | 0.309 | 2,331 |
| SBP* | −1.09 | 0.80 | 0.172 | 2,249 |
| SBP** | 0.94 | 1.95 | 0.628 | 443 |
| DBP | 3.54 | 0.65 | 0.0001 | 2,331 |
| DBP* | 2.23 | 0.57 | 0.0001 | 2,249 |
| DBP** | 3.36 | 1.40 | 0.017 | 443 |
| Calculated urinary salt (NaCl) excretion, g/day§ | −1.16 | 0.53 | 0.028 | 522 |
| Urinary potassium (K), mmol/24hr§ | −8.75 | 2.76 | 0.002 | 522 |
All models are adjusted for: age, gender, ethnicity, location, marital status, education level, alcohol use, smoking status, waist-hip ratio. * including hypertension status as adjusting factor. **including hypertension status, sodium, potassium, creatinine and iodine as adjusting factors. § including hypertension status, SBP and DBP as adjusting factors. SBP: systolic blood pressure, DBP: diastolic blood pressure.