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. 2012 Feb 19;12:135. doi: 10.1186/1471-2458-12-135

Table 1.

Characteristics of study participants

Characteristics No hypertension Hypertension p-value
(N = 11,451; 67.5%) (N = 5,505; 32.5%)
Age (y), mean (SD) 50.3 (16.8) 63.0 (14.1) < 0.001
Gender, n (%)
 Men 5,225 (67.5) 2,518 (32.5) < 0.001
 Women 6,226 (67.6) 2,987 (32.4)

Marital status, n (%)
 Married 8,311 (68.5) 3,816 (31.5) < 0.001
 Others 3,140 (65.0) 1,689 (35.0)

Education, n (%)
 Elementary school or less 4,166 (54.9) 3,416 (45.1) < 0.001
 Middle or high school 4,287 (73.9) 1,515 (26.1)
 Undergraduate or graduate 2,754 (85.6) 463 (14.4)

Smoking status, n (%)
 Non-smoker 7,418 (68.5) 3,415 (31.5) < 0.001
 Former smoker 1,180 (57.4) 877 (42.6)
 Current smoker 2,405 (69.5) 1,053 (30.5)

Alcohol consumption, n (%)
 No 7,204 (68.8) 3,266 (31.2) < 0.001
 Yes 4,029 (65.3) 2,143 (34.7)

Physical activity, n (%)
 No 7,554 (66.1) 3,870 (33.9) < 0.001
 Yes 3,897 (70.4) 1,635 (29.6)

Self-rated health, n (%)
 Excellent 664 (78.9) 178 (21.1) < 0.001
 Good 3,947 (75.5) 1,278 (24.5)
 Fair 5,140 (69.1) 2,301 (30.9)
 Poor 1,437 (49.1) 1,492 (50.9)
 Very poor 179 (44.3) 225 (55.7)

BMI (kg/m2), mean (SD) 22.9 (2.8) 24.1 (3.2) < 0.001

t-test or chi-square test as appropriate