Table 4. Blood pressure values pre- and post- intervention.
| Blood pressure (mean±s.d. mm Hg) | Control group (N=288) | Intervention group (N=266) | Za | Pa |
|---|---|---|---|---|
| Baseline blood pressure | ||||
| SBP | 138.3±13.2 | 139.6±12.0 | 1.19 | 0.233 |
| DBP | 86.0±8.6 | 86.4±8.0 | 0.56 | 0.577 |
| Mid-term blood pressure | ||||
| SBP | 133.2±9.8 | 130.9±12.2 | −2.49 | 0.013 |
| DBP | 83.8±6.3 | 79.6±7.9 | −5.42 | <0.001 |
| Final blood pressure | ||||
| SBP | 138.4±12.6 | 139.0±13.4 | 0.43 | 0.668 |
| DBP | 85.4±8.2 | 84.5±8.0 | −1.18 | 0.240 |
| Changes in blood pressure | ||||
| Mid term vs baseline | ||||
| SBP | −5.0±13.9 | −8.6±13.9 | −3.05 | 0.002 |
| DBP | −2.3±9.1 | −6.8±8.9 | −4.62 | <0.001 |
| Final vs baseline | ||||
| SBP | 0.1±16.1 | −0.5±15.5 | −0.49 | 0.623 |
| DBP | −0.7±10.6 | −1.9±9.9 | −1.40 | 0.162 |
Abbreviations: DBP, diastolic blood pressure; SBP, systolic blood pressure.
a
Based on the multilevel mixed-effects linear regression model.