Table 2.
Incidence of hypertension for employees after 2 years of intervention
| Variables | Change from baseline, % (95% CI) | Intervention effect | ||
|---|---|---|---|---|
| Intervention group (n = 16,488) | Control group (n = 5,179) | RR (95% CI) | P value | |
| Overall | 1254 (8.0) | 528 (9.6) | 0.66 (0.58,0.76) | < 0.001 |
| Sex | ||||
| Male | 959 (10.2) | 394 (11.9) | 0.69 (0.60,0.80) | < 0.001 |
| Female | 295 (4.7) | 134 (6.2) | 0.52 (0.30,0.89) | 0.016 |
| Marital status | ||||
| Married | 1027 (7.6) | 411 (9.0) | 0.68 (0.59,0.79) | < 0.001 |
| Unmarried | 87 (5.2) | 57 (7.6) | 0.53 (0.36,0.78) | 0.001 |
| Educational attainment | ||||
| Middle school or below | 228 (6.4) | 63 (6.0) | 0.71 (0.45,1.10) | 0.128 |
| High school | 416 (8.2) | 172 (10.6) | 0.63 (0.50,0.79) | < 0.001 |
| College or above | 470 (7.1) | 233 (8.8) | 0.57 (0.47,0.69) | < 0.001 |
| Employment status | ||||
| Manual labor worker | 656 (8.3) | 264 (10.5) | 0.56 (0.44,0.71) | < 0.001 |
| Desk job worker | 394 (7.0) | 144 (6.8) | 0.77 (0.62,0.96) | 0.020 |
| Administrative workers | 129 (7.4) | 65 (13.9) | 0.38 (0.27,0.53) | < 0.001 |
| Others | 20 (7.1) | 23 (7.0) | 0.61 (0.25,1.51) | 0.287 |
| Workplace-affiliated hospital | ||||
| WAH | 1011 (8.1) | 349 (10.1) | 0.72 (0.62,0.84) | < 0.001 |
| WWH | 243 (7.7) | 179 (8.8) | 0.01 (0.00,0.15) | 0.001 |
| The history of disease | ||||
| History of dyslipidemia | 142 (13.9) | 42 (14.3) | 0.97 (0.64,1.48) | 0.892 |
| History of diabetes | 48 (18.0) | 17 (28.3) | 0.54 (0.26,1.10) | 0.090 |
| History of CVD | 8 (20.0) | 5 (31.2) | 0.38 (0.04,3.27) | 0.381 |
| Family history of hypertension | 311 (11.1) | 92 (10.1) | 1.03 (0.76,1.39) | 0.849 |
| Pharmacological treatment | 50 (18.1) | 12 (12.6) | 0.56 (0.44,0.71) | < 0.001 |
| Lifestyle factors | ||||
| Current smoking | 431 (10.8) | 173 (11.1) | 0.63 (0.50,0.80) | < 0.001 |
| Current drinking | 445 (11.8) | 185 (14.2) | 0.52 (0.41,0.65) | < 0.001 |
| Regular exercise | 422 (8.1) | 208 (10.8) | 0.59 (0.48,0.73) | < 0.001 |
| Stress perception | 412 (8.5) | 209 (11.5) | 0.55 (0.44,0.68) | < 0.001 |
| Overweight or obesity | 711 (11.6) | 271 (14.2) | 0.72 (0.60,0.87) | 0.001 |
| Excessive intake of fatty food | 721 (7.3) | 321 (9.6) | 0.61 (0.51,0.72) | < 0.001 |
| Restrictive use of salt | 129 (6.2) | 61 (8.5) | 0.63 (0.43,0.92) | 0.008 |
Abbreviations: OR odds ratio, 95%CI 95% confidence interval, WAH workplace with an affiliated hospital, WWH workplace without an affiliated hospital, CVD cardiovascular disease. The multilevel model adjusted for 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