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Table 1 Prevalence conditions of hypertension and prehypertension (n(%))

From: Prevalence of prehypertension and associated risk factors among Chinese adults from a large-scale multi-ethnic population survey

Characteristics HT (n = 14003) PRT (n = 17281) NT (n = 16211) Z/χ 2 * P
Gender     27.591 <0.001
 Male 6378 (33.2) 7902 (41.1) 4950 (25.7)   
 Female 7625 (27.0) 9379 (33.2) 11261 (39.8)   
Age     9718.166 <0.001
 18–29 729 (6.1) 4303 (34.7) 7007 (58.2)   
 30–39 1356 (17.0) 3145 (39.4) 3483 (43.6)   
 40–49 2840 (29.4) 3906 (40.4) 2930 (30.3)   
 50–59 3525 (43.1) 3031 (37.1) 1621 (19.8)   
 60–69 3455 (55.7) 1930 (31.1) 817 (13.2)   
 70–79 2098 (61.4) 966 (28.3) 353 (10.3)   
Marital status     4733.453 <0.001
 Married 12051 (34.7) 12878 (37.1) 9792 (28.2)   
 Single 645 (6.4) 3595 (35.4) 5902 (58.2)   
 Divorced/widowed 1307 (49.7) 808 (30.7) 517 (19.6)   
Educational level     3391.819 <0.001
 Illiterate or primary school 4505 (46.5) 3225 (33.3) 1968 (20.3)   
 High school 6906 (31.8) 8239 (37.9) 6591 (30.3)   
 University 2592 (16.1) 5817 (36.2) 7652 (47.6)   
Occupation     49.867 <0.001
 Physical laborer 9684 (38.7) 8820 (35.3) 6512 (26.0)   
 Laborer with mental work 4319 (19.2) 8461 (37.6) 9699 (43.1)   
Ethnicity     332.522 <0.001
 Han 10789 (30.3) 12874 (36.2) 11927 (33.5)   
 Yi 652 (26.7) 985 (40.3) 808 (33.0)   
 Miao 143 (22.2) 250 (38.9) 250 (38.9)   
 Mongolia 557 (31.6) 644 (36.6) 560 (31.8)   
 Tibetan 138 (15.6) 275 (31.1) 471 (53.3)   
 Korean 529 (36.5) 525 (36.2) 395 (27.3)   
 Hui 732 (28.2) 968 (37.3) 896 (34.5)   
 Tujia 293 (24.2) 444 (36.6) 475 (39.2)   
 Others 170 (18.6) 316 (34.5) 429 (46.9)   
Smoker     374.036 <0.001
 Never 10396 (28.1) 13092 (35.4) 13473 (36.5)   
 Current 3515 (34.0) 4133 (39.9) 2701 (26.1)   
 Former 92 (49.7) 56 (30.3) 37 (20.0)   
Alcohol drinker     19.417 <0.001
 No 10360 (28.1) 12992 (35.3) 13466 (36.6)   
 Yes 3643 (34.1) 4289 (40.2) 2745 (25.7)   
High-salt diets     2.962 0.003
 No 12479 (29.3) 15522 (36.4) 14617 (34.3)   
 Yes 1524 (31.2) 1759 (36.1) 1594 (32.7)   
BMI     6399.594 <0.001
 General obesity 3316 (58.8) 1776 (31.5) 551 (9.8)   
 Overweight 5886 (40.1) 5763 (39.3) 3026 (20.6)   
 Normal 4801 (17.7) 9742 (35.8) 12634 (46.5)   
Abdominal obesity     76.4597 <0.001
 Yes 8691 (47.0) 6473 (36.4) 3074 (16.6)   
 No 5312 (18.3) 10538 (36.4) 13137 (45.3)   
Family history of cardiovascular diseases     8.0453 <0.001
 No 12385 (29.0) 15533 (36.4) 14791 (34.6)   
 Yes 1618 (33.8) 1748 (36.5) 1420 (29.7)   
  1. *Wilcoxon rank-sum test was used, in which the statistic was Z or χ2
  2. HT hypertension PRT prehypertension, NT Normotension