Table 3.
Changes in blood pressure level and lifestyle factors for employees in the study
| Variables | Intervention group (n = 16,488) | Control group (n = 5,179) | Intervention Effecta | |||
|---|---|---|---|---|---|---|
| Baseline, % | 24 mo, % | Baseline, % | 24 mo, % | β/OR (95% CI) | p value | |
| SBP mean (SD), mm Hg | 118.6 (10.8) | 120.1 (11.8) | 118.2 (10.6) | 120.5 (12.2) | − 0.7 (− 1.06, − 0.35) | < 0.001 |
| DBP mean (SD), mm Hg | 74.6 (7.9) | 75.4 (8.7) | 74.8 (7.8) | 75.8 (8.6) | − 1.0 (− 1.31, − 0.76) | < 0.001 |
| Lifestyle factors | ||||||
| Current smoking | 25.5 | 24.1 | 27.5 | 24.1 | 0.9(0.80, 1.02) | 0.094 |
| Current drinking | 24.1 | 21.5 | 23.9 | 20.4 | 0.93(0.84, 1.04) | 0.194 |
| Regular exercise | 33.4 | 45.0 | 34.4 | 39.4 | 1.39(1.28, 1.50) | < 0.001 |
| Stress perception | 30.2 | 24.0 | 33.9 | 25.6 | 0.93(0.85, 1.02) | 0.111 |
| Overweight or obesity | 39.2 | 40.2 | 34.7 | 36.6 | 0.91(0.81, 1.01) | 0.073 |
| Excessive intake of fatty food | 63.5 | 53.0 | 61.4 | 61.1 | 0.54(0.50, 0.59) | < 0.001 |
| Restrictive use of salt | 13.3 | 15.5 | 13.1 | 12.4 | 1.22(1.09, 1.36) | 0.001 |
OR, odds ratio; 95%CI, 95% confidence interval; SBP, systolic blood pressure; DBP, diastolic blood pressure; SD, standard deviation
aThe multilevel model adjusted age at recruitment, sex, marital status, educational attainment, employment status, workplace-affiliated hospital, history of dyslipidemia, history of diabetes, history of CVD, family history of hypertension, pharmacological treatment