Table 4. Adjusted hazards ratio for hypertension in Mongolian of rural Chinese.

Variables	MAN(n = 2298)				WOMEN(n = 2455)
	Univariate analysis		Multivariate analysis*		Univariate analysis		Multivariate analysis*
	HR(95%CI)	P value	HR(95%CI)	P value	HR(95%CI)	P value	HR(95%CI)	P value
Age, yrs(1 SD increased)	1.0283(1.017–1.028)	<0.001	1.028(1.022–1.034)	<0.001	1.032(1.026–1.037)	<0.001	1.032(1.025–1.038)	<0.001
High school education(yes vs no)	1.201(0.990–0.457)	0.064	1.276(1.049–1.553)	0.015	0.971(0.777–1.213)	0.795	-	-
Family history of hypertension(yes vs no)	1.166(0.984–1.382)	0.077	1.297(1.090–1.544)	0.003	1.324(1.081–1.621)	0.007	1.615(1.314–1.986)	<0.001
Drinking (yes vs no)	1.113(0.982–1.261)	0.095	1.170(1.030–1.330)	0.016	0.974(0.765–1.240)	0.83	-	-
Smoking (yes vs no)	0.983(0.864–1.117)	0.789	-	-	1.075(0.900–1.283)	0.428	-	-
Prehypertension(yes vs no)	1.120(0.959–1.308)	0.152	-	-	1.556(1.346–1.798)	<0.001	1.433(1.235–1.663)	<0.001
BMI, kg/m2(1 SD increased)	1.009(0.987–1.031)	0.436	-	-	1.021(1.001–1.041)	0.042	1.021(1.002–1.041)	0.031
Physical activity
moderate	11.000(reference)		1.000(reference)		1.000(reference)		1.000(reference)
low	1.344(1.122–1.611)	0.001	1.011(0.831–1.229)	0.912	1.770(1.516–2.066)	<0.001	1.231(1.036–1.464)	0.018
high	1.322(1.160–1.606)	<0.001	1.383(1.212–1.577)	<0.001	1.204(1.077–1.399)	0.015	1.261(1.084–1.466)	0.003

HR: hazards ratio; 95%CI: 95% confidence interval;

^*adjusted for age, high school education, family history of hypertension, drinking, prehypertension, BMI, physical activity.