Table 5.
Factors associated with the prevalence of hypertension from multivariate logistic regression models (N = 2208)
| Variables | n | Prevalence of HBP (%) | OR (95% CI) a | OR (95% CI) b |
|---|---|---|---|---|
| Age groups (years): 50–59 | 659 | 32.8 | - | 1.000(reference) |
| 60-69 | 820 | 38.2* | - | 1.050(0.724, 1.524) |
| 70-79 | 575 | 43.1* | - | 2.768(1.728, 4.433) |
| 80- | 154 | 47.4* | - | 3.104(1.350, 7.135) |
| Education level: No school | 1139 | 42.8 | 1.000(reference) | 1.000(reference) |
| Primary school | 431 | 36.4* | 0.703(0.551, 0.897) | 0.771(0.600, 0.991) |
| Junior high school | 318 | 34.0* | 0.609(0.460, 0.805) | 0.688(0.515, 0.918) |
| Senior high school | 269 | 31.2* | 0.536(0.393, 0.729) | 0.642(0.464, 0.889) |
| Junior college and above | 51 | 25.5* | 0.416(0.214,0.811) | 0.490(0.251,0.959) |
| Body weight: normal weight | 1323 | 39.5 | 1.000(reference)) | 1.000(reference) |
| Leanness | 685 | 31.4* | 0.669(0.546, 0.821) | 0.642(0.522, 0.789) |
| Overweight | 175 | 54.3* | 1.811(1.295, 2.533) | 1.897(1.353, 2.662) |
| Obesity | 25 | 65.5* | 3.067(1.385, 6.792) | 3.009(1.355, 6.678) |
| Cigarette smoking: no | 1412 | 35.4 | 1.000(reference) | 1.000(reference) |
| Yes | 796 | 44.0* | 1.745(1.332, 2.287) | 1.768(1.348, 2.319) |
| Alcohol consumption: no | 1468 | 34.9 | 1.000(reference) | 1.000(reference) |
| Yes | 740 | 45.7* | 1.745(1.356, 2.245) | 1.788(1.389, 2.303) |
| Family history of HBP: no | 1992 | 35.0 | 1.000(reference) | 1.000(reference) |
| Yes | 216 | 70.4* | 3.968(2.892,5.445) | 3.817(2.776,5.248) |
95% CI, 95% confidence interval; HBP, high blood pressure; OR, odds ratio; aAdjusted for age only; bAdjusted for all other variables in the table. *P < 0.01 in cigarette smoking group, alcohol consumption group, P < 0.05 in age group, education level group, Family history of HBP group.