Table 1. Characteristics of participants stratified by BP.
| variables | Normotension (n = 5915) | Prehypertension(n = 4945) | Hypertension (n = 4436) | Statistic | P value |
|---|---|---|---|---|---|
| Male N (percent) | 1932 (32.7) | 2459 (49.7) | 1888 (42.6) | 329.99a | <0.001 |
| Female N (percent) | 3983 (67.3) | 2486 (50.3) | 2548 (57.4) | ||
| Age (years) M (P25~P75) | 45 (32~58) | 52 (40~65) | 66 (57~74) | 3075.14b | <0.001 |
| Urban N (percent) | 2806 (47.4) | 2364 (47.8) | 2635 (59.4) | 175.47a | <0.001 |
| Rural N (percent) | 3109 (52.6) | 2581 (52.2) | 1801 (40.6) | ||
| Current smokers N (percent) | 806 (13.6) | 1123 (22.7) | 835 (18.8) | 150.77a | <0.001 |
| Current drinkers N (percent) | 1271 (21.5) | 1341 (27.1) | 1035(23.3) | 47.86a | <0.001 |
| BMI (kg/m2) M (P25~P75) | 21.5 (19.7~23.6) | 22.8 (20.6~25.2) | 23.7(21.3~26.2) | 923.67b | <0.001 |
| WC (cm) M (P25~P75) | 75.0 (70.0~80.0) | 79.4 (73.0~86.0) | 82.0(75.4~89.5) | 1285.14b | <0.001 |
| BFP M (P25~P75) | 25.4 (21.0~30.4) | 26.5 (21.8~32.0) | 29.6 (24.1~35.0) | 689.31b | <0.001 |
| <10 for M,<20 for F | 435(61.1) | 176 (24.7) | 101 (14.2) | 1523.842a | <0.001 |
| 10–19 for M, 20–29 for F | 2819(53.0) | 1605 (30.2) | 892 (16.8) | ||
| 20–24 for M, 30–34 for F | 1652 (35.7) | 1590 (34.4) | 1380 (29.9) | ||
| ≥25for M,≥35 for F | 897 (20.4) | 1527 (34.6) | 1983 (45.0) | ||
| VAI M (P25~P75) | 5.0 (3.0~8.0) | 7.0 (5.0~10.0) | 8.0 (6.0~12.0) | 1449.05b | <0.001 |
| 1–9 | 4909 (44.2) | 3501 (31.5) | 2705 (24.3) | 872.225a | |
| 10–14 | 566 (22.0) | 944 (36.7) | 1063 (41.3) | ||
| 15–30 | 119 (12.5) | 326 (34.2) | 508 (53.3) | ||
| SBP (mmHg) M (P25~P75) | 110.3(104.5~115.0) | 126.3(122.3~131.3) | 144.7(134.3~156.3) | 11183.62b | <0.001 |
| DBP (mmHg) M (P25~P75) | 67.3 (62.5~72.0) | 76.0 (71.3~81.0) | 81.3 (73.0~90.0) | 5233.83b | <0.001 |
| HR (bpm) (P25~P75) | 76 (70~83) | 78 (71~85) | 78 (71~85) | 36.51b | <0.001 |
Note: Continuous variables were presented as median (IQR) as appropriate and compared using the Mann—Whitney U test. Categorical variables were expressed as percentages and analyzed by the χ2 test.
Variables are shown as M (P25–P75) or percentage.
a χ2 test;
b Mann—Whitney U test.
BFP, Body fat percentage; BMI, body mass index; DBP, diastolic blood pressure; HR, heart rate; SBP, systolic blood pressure; WC, Waist circumference. M, Male; F, female.