Table 1.
Description of the demographical features among at baseline all participants by BP.
| Features | < 65 years | ≥ 65 years | Total |
|---|---|---|---|
| Participants | 3,527 (87.8) | 490 (12.2) | 4,017 (100) |
| Men | 1,588 (45.0) | 253 (51.6) | 1,841 (45.8) |
| Follow-up time, years | 26.28 (0.90) | 7.75 (11.01) | 26.28 (7.29) |
| Person-year | 80707.17 | 4717.43 | 85424.60 |
| Age, years | 37.21 (12.59) | 72.37 (6.09) | 41.50 (16.62) |
| EDUCATION ATTAINMENT | |||
| 0 year | 1,220 (34.6) | 415 (84.7) | 1,635 (40.7) |
| 1~6 years | 926 (26.3) | 68 (13.9) | 994 (24.7) |
| 7~9 years | 1,240 (35.2) | 5 (1.0) | 1,245 (31.0) |
| ≥ 10 years | 141 (4.0) | 2 (0.4) | 143 (3.6) |
| SBP, mmHg | 124.08 (16.60) | 149.76 (28.06) | 127.22 (20.21) |
| SBP GROUPS | |||
| < 130 | 2,226 (63.1) | 80 (16.3) | 2,306 (57.4) |
| 130~ | 742 (21.0) | 85 (17.3) | 827 (20.6) |
| 140~ | 396 (11.2) | 165 (33.7) | 561 (14.0) |
| 160~ | 100 (2.7) | 75 (15.3) | 175 (4.4) |
| ≥180 | 63 (1.8) | 85 (17.3) | 148 (3.7) |
| DBP, mmHg | 78.80 (10.51) | 87.88 (13.86) | 79.91 (11.37) |
| DBP GROUPS | |||
| < 80 | 1,327 (37.6) | 84 (17.1) | 1,411 (35.1) |
| 80~ | 1,442 (40.9) | 123 (25.1) | 1,565 (39.0) |
| 90~ | 586 (16.6) | 174 (35.5) | 760 (18.9) |
| 100~ | 122 (3.5) | 62 (12.7) | 184 (4.6) |
| ≥110 | 50 (1.4) | 47 (9.6) | 97 (2.4) |
| BMI, Kg/m2 | 22.69 (2.76) | 21.83 (2.96) | 22.58 (2.80) |
| BMI GROUPS | |||
| Normal | 2,595 (73.6) | 391 (79.8) | 2,986 (74.3) |
| Over weight | 779 (22.1) | 95 (17.3) | 864 (21.5) |
| Obesity | 153 (4.3) | 14 (2.9) | 167 (4.2) |
| SMOKING STATUS | |||
| Never | 2,530 (71.7) | 369 (75.3) | 2,899 (72.2) |
| Ever | 96 (2.7) | 16 (3.3) | 112 (2.8) |
| Current | 901 (25.5) | 105 (21.4) | 1,006 (25.0) |
| DRINKING STATUS | |||
| Never | 2,952 (83.7) | 445 (90.8) | 3,397 (84.6) |
| Ever | 16 (0.5) | 0 | 16 (0.4) |
| Current | 559 (15.8) | 45 (9.2) | 604 (15.0) |
SD, standard deviation; SBP, systolic blood pressure; DBP, diastolic blood pressure; BMI, body mass index.