Table 5.
Average treatment effects (ATT) of the sodium to potassium ratio on blood pressure for six pairwise comparisons using propensity score matching after excluding hypertension patients
| Models | Blood Pressure (mm Hg) | ATT (mm Hg) (Standard Error) |
p-Value a | |
|---|---|---|---|---|
| Control | Treated | |||
| Systolic blood pressure | ||||
| Q1 vs. Q2 | 111.34 | 112.43 | 1.09 (0.51) | 0.017 |
| Q1 vs. Q3 | 111.05 | 111.93 | 0.88 (0.52) | 0.046 |
| Q1 vs. Q4 | 111.28 | 112.70 | 1.41 (0.54) | 0.005 |
| Q2 vs. Q3 | 112.14 | 112.31 | 0.17 (0.49) | 0.362 |
| Q2 vs. Q4 | 112.48 | 112.76 | 0.28 (0.50) | 0.292 |
| Q3 vs. Q4 | 112.93 | 112.60 | −0.33 (0.49) | 0.255 |
| Diastolic blood pressure | ||||
| Q1 vs. Q2 | 72.51 | 73.34 | 0.83 (0.32) | 0.005 |
| Q1 vs. Q3 | 72.44 | 72.63 | 0.19 (0.33) | 0.284 |
| Q1 vs. Q4 | 72.55 | 73.46 | 0.92 (0.34) | 0.004 |
| Q2 vs. Q3 | 73.44 | 73.11 | −0.33 (0.31) | 0.141 |
| Q2 vs. Q4 | 73.58 | 73.64 | 0.06 (0.32) | 0.426 |
| Q3 vs. Q4 | 73.44 | 73.74 | 0.30 (0.32) | 0.173 |
a p-values are for 1-tailed t-tests regarding the significance of ATTs.