Table 3.
Comparison of blood pressure changes between and within groups (Population).
| Vital Signs | Acupuncture Group (n = 109) | Control Group (n = 101) |
Mean Difference a | p b |
|---|---|---|---|---|
| SBP | ||||
| Baseline | 133.2 (131.2, 135.1) | 128.9 (126.6, 131.2) | ||
| After 2 years | 121.3 (118.9, 123.7) | 126.91 (123.8, 130.1) | −7.55 (−11.35, −3.75) | <0.001 *** |
| Difference | −11.92 (−14.50, −9.35) | −1.94 (−4.96, 1.08) | ||
| p c | <0.001 *** | 0.206 | ||
| DBP | ||||
| Baseline | 87.5 (86.3, 88.8) | 82.9 (81.5, 84.4) | ||
| After 2 years | 76.6 (74.9, 78.3) | 80.6 (78.5, 82.6) | −6.89 (−9.26, −4.52) | <0.001 *** |
| Difference | −10.89 (−12.47, −9.31) | −2.36 (−4.05, −0.66) | ||
| p c | <0.001 *** | 0.007 ** |
Abbreviation: SBP, systolic blood pressure; DBP, diastolic blood pressure. a = mean difference using Multiple regression analysis (control variables: age, BMI, baseline BP, Drinks, smokes, Exercise); b = p-value from Multiple regression analysis; c = p-value from paired t-test; **: p < 0.01; and ***: p < 0.001.