Table 4 Factors associated with the prevalence of hypertension in Mongolian and Han people by multivariate logistic regression models
Factors | Mongolian a | P | Han a | P | Total c | P |
|---|---|---|---|---|---|---|
Odds ratio (95Â % CI) | Odds ratio (95Â % CI) | Odds ratio (95Â % CI) | ||||
Sex: Male (reference) | 1.00 | Â | 1.00 | Â | 1.00 | Â |
 Female | 0.55 (0.34–0.88) | 0.01 | 0.74 (0.52–1.06) | 0.10 | 1.21 (0.53–2.73) | 0.65 |
Ethnic groups: Han (reference) | — | — | — | — | 1.00 |  |
 Mongolian | — | — | — | — | 1.27 (1.04–1.55) | 0.02 |
Age groups: 20–29 (reference) | 1.00 |  | 1.00 |  | 1.00 |  |
 30–39 | 1.95 (0.84–4.55) | 0.12 | 3.93 (2.08–7.42) | <0.001 | 3.46 (2.03–5.90) | <0.001 |
 40–49 | 5.81 (2.75–12.30) | <0.001 | 8.36 (4.61–15.15) | <0.001 | 8.04 (4.90–13.19) | <0.001 |
 50–59 | 12.88 (5.95–27.89) | <0.001 | 14.81 (8.11–27.03) | <0.001 | 15.33 (9.28–25.32) | <0.001 |
 60–80 | 31.48 (13.23–74.94) | <0.001 | 22.54 (11.97–42.47) | <0.001 | 26.24 (15.42–44.65) | <0.001 |
Education level: Low (reference) | 1.00 |  | 1.00 |  | 1.00 | — |
 Medium | 1.15 (0.65–2.02) | 0.63 | 0.83 (0.61–1.11) | 0.21 | 1.25 (0.62–2.51) | 0.53 |
 High | 0.97 (0.51–1.85) | 0.93 | 0.54 (0.37–0.78) | 0.001 | 1.00 (0.27–3.71) | 0.99 |
Cigarette smoking: Never (reference) | 1.00 | Â | 1.00 | Â | 1.00 | Â |
 Current | 0.62 (0.38–1.01) | 0.06 | 0.92 (0.65–1.30) | 0.64 | 0.82 (0.62–1.09) | 0.17 |
 Former | 0.80 (0.43–1.48) | 0.47 | 1.34 (0.87–2.07) | 0.19 | 1.27 (0.89–1.80) | 0.19 |
Alcohol drinking: Never (reference) | 1.00 |  | 1.00 |  | 1.00 | – |
 Current | 1.46 (0.95–2.25) | 0.09 | 1.47 (1.11–1.95) | 0.007 | 0.64 (0.27–1.52) | 0.31 |
 Former | 1.06 (0.55–2.04) | 0.86 | 1.17 (0.75–1.83) | 0.48 | 0.79 (0.46–1.36) | 0.39 |
BMI: Lean or healthy (reference) | 1.00 | Â | 1.00 | Â | 1.00 | Â |
 Overweight | 2.29 (1.60–3.27) | <0.001 | 2.30 (1.84–2.86) | <0.001 | 2.27 (1.87–2.74) | <0.001 |
 Obesity | 4.18 (2.42–7.23) | <0.001 | 5.40 (3.79–7.67) | <0.001 | 5.02 (3.73–6.75) | <0.001 |
Physical activity: Light (reference) | 1.00 | Â | 1.00 | Â | 1.00 | Â |
 Medium | 0.93 (0.50–1.73) | 0.81 | 0.70 (0.50–0.98) | 0.04 | 0.75 (0.55–1.01) | 0.06 |
 Heavy | 0.90 (0.48–1.68) | 0.74 | 0.64 (0.42–1.00) | 0.05 | 0.78 (0.55–1.11) | 0.17 |
Exercise: No (reference) | 1.00 | Â | 1.00 | Â | 1.00 | Â |
 Yes | 1.13 (0.77–1.68) | 0.53 | 1.20 (0.95–1.51) | 0.12 | 1.16 (0.95–1.42) | 0.13 |
Sex* Education | — | — | — | — | 0.80 (0.57–1.13) | 0.21 |
Alcohol drinking* Education | — | — | — | — | 1.21 (1.01–1.46) | 0.04 |