Table 4.
Comparison of changes between groups according to blood pressure level and other characteristics.
| Subgroup | Acupuncture Group | Control Group | Relative Risk Ratio |
|---|---|---|---|
| All participants | 62.3% (49.8%, 73.4%) | 34.4% (23.8%, 47.0%) | 1.81 (1.22, 2.69) |
| Blood pressure | |||
| SBP ≥ 140 | 90.0% (59.6%, 98.2%) | 50.0% (23.7%, 76.3%) | 1.80 (0.94, 3.46) |
| SBP < 140 | 56.9% (43.3%, 69.5%) | 31.4% (20.3%, 45.0%) | 1.81 (1.13, 2.90) |
| DBP ≥ 90 | 92.3% (66.7%, 98.6%) | 37.5% (13.7%, 69.4%) | 2.46 (0.99, 6.10) |
| DBP < 90 | 54.2% (40.3%, 67.4%) | 34.0% (22.7%, 47.4%) | 1.59 (1.01, 2.52) |
| Age (years) | |||
| ≥60 | 61.1% (38.6%, 79.7%) | 26.1% (12.6%, 46.5%) | 2.34 (1.07, 5.11) |
| 55–59 | 53.6% (35.8%, 70.5%) | 33.3% (17.2%, 54.6%) | 1.61 (0.80, 3.22) |
| <55 | 80.0% (54.8%, 93.0%) | 47.1% (26.2%, 69.0%) | 1.70 (0.97, 2.99) |
| Body mass index | |||
| ≥25 | 65.2% (44.9%, 81.2%) | 16.1% (7.1%, 32.6%) | 4.04 (1.72, 9.52) |
| <25 | 60.5% (44.7%, 74.4%) | 53.5% (36.1%, 69.8%) | 1.13 (0.74, 1.73) |
| Exercise | |||
| Yes | 61.9% (46.8%, 75.0%) | 37.5% (13.7%, 69.4%) | 1.65 (0.65, 4.17) |
| No | 63.2% (41.0%, 80.9%) | 34.0% (22.7%, 47.4%) | 1.86 (1.12, 3.09) |
Abbreviation: SBP, systolic blood pressure; DBP, diastolic blood pressure. Data are the estimated proportion (95% confidence interval for proportion) of participants showing a reduction in BP for each group. Event means that stage 1 hypertension was improved to pre-hypertension or to normal BP, and pre-hypertension to normal BP.