Table 1.
General features of demographic, anthropometric measures, blood pressures and covariates on study participants
| Study participants (n = 80,313) | Male (n = 31,515) | Female (n = 48,798) | P value | |
|---|---|---|---|---|
| Age, years | 50.2 (11.1) | 51.0 (11.4) | 49.7 (10.9) | |
| Age distribution (years), n (%) | < 0.001 | |||
| 30–39 | 14,935 (18.6) | 5511 (17.5) | 9424 (19.3) | |
| 40–49 | 26,031 (32.4) | 9793 (31.1) | 16,238 (33.3) | |
| 50–59 | 21,909 (27.3) | 8271 (26.2) | 13,638 (27.9) | |
| 60–69 | 12,852 (16.0) | 5788 (18.4) | 7064 (14.5) | |
| 70–79 | 4586 (5.7) | 2152 (6.8) | 2434 (5.0) | |
| Anthropometric measures | ||||
| Height, cm | 158.12 (8.1) | 164.54 (6.6) | 153.98 (6.1) | < 0.001 |
| Weight, kg | 60.19 (10.59) | 65.92 (10.56) | 56.49 (8.81) | < 0.001 |
| Height-adjusted weigh, kg | 60.19 (8.50) | 60.93 (9.06) | 59.71 (8.08) | < 0.001 |
| BMI, kg/m2 | 24.01 (3.38) | 24.31 (3.33) | 23.81 (3.40) | < 0.001 |
| WC, cm | 82.01 (10.18) | 84.92 (9.84) | 80.14 (9.95) | < 0.001 |
| HC, cm | 93.06 (7.16) | 93.81 (6.88) | 92.57 (7.29) | < 0.001 |
| Waist-hip ratio | 0.88 (0.07) | 0.90 (0.06) | 0.86 (0.07) | < 0.001 |
| Blood pressure | ||||
| SBP, mmHg | 123.18 (17.45) | 126.61 (16.75) | 120.96 (17.53) | < 0.001 |
| DBP, mmHg | 78.13 (10.68) | 81.17 (10.79) | 76.17 (10.13) | < 0.001 |
| Initial nine populations, n (%) | < 0.001 | |||
| Han ethnic in Basin | 37,810 (47.1) | 17,075 (54.2) | 20,735 (42.5) | |
| Han ethnic in Yunnan | 8613 (10.7) | 3048 (9.7) | 5565 (11.4) | |
| Tibetans in Lhasa | 4712 (5.9) | 1825 (5.8) | 2887 (5.9) | |
| Tibetans in Aba-Sichuan | 4363 (5.4) | 1626 (5.2) | 2737 (5.6) | |
| Yi ethnic | 5117 (6.4) | 1686 (5.3) | 3431 (7.0) | |
| Miao ethnic | 4347 (5.4) | 1542 (4.9) | 2805 (5.7) | |
| Bai ethnic | 5022 (6.3) | 1452 (4.6) | 3570 (7.3) | |
| Bouyei ethnic | 4836 (6.0) | 1387 (4.4) | 3449 (7.1) | |
| Dong ethnic | 5493 (6.8) | 1874 (5.9) | 3619 (7.4) | |
| Meat consumption, g/week | 668.64 (643.82) | 787.62 (701.90) | 591.79 (590.75) | < 0.001 |
| Vegetable consumption, g/week | 2164.27 (1455.92) | 2199.80(1499.45) | 2141.33 (1426.65) | < 0.001 |
| Oil plant consumption, g/week | 295.31 (208.83) | 305.32 (214.53) | 288.84 (204.82) | < 0.001 |
| Salt consumption, g/week | 46.65 (28.80) | 47.20 (29.13) | 46.29 (28.59) | < 0.001 |
| Smoking | < 0.001 | |||
| Never | 60,486 (75.3) | 12,440 (39.5) | 48,046 (98.5) | |
| Current regular | 16,153 (20.1) | 15,522 (49.3) | 631 (1.3) | |
| Ex-regular | 3660 (4.6) | 3546 (11.3) | 114 (0.2) | |
| Alcohol consumption | < 0.001 | |||
| Non-drinker | 45,261 (56.4) | 10,666 (33.9) | 34,595 (70.9) | |
| Occasional | 20,993 (26.1) | 9440 (30.0) | 11,553 (23.7) | |
| seasonal | 895 (1.1) | 488 (1.5) | 407 (0.8) | |
| Monthly | 2844 (3.5) | 1931 (6.1) | 913 (1.9) | |
| Weekly | 10,294 (12.8) | 8980 (28.5) | 1314 (2.7) | |
| Physical activity METs/day | 33.09 (17.95) | 33.30 (18.27) | 32.96 (17.74) | 0.009 |
| Diabetes mellitus | < 0.001 | |||
| No | 71,333 (91.7) | 27,129 (89.0) | 44,204 (93.5) | |
| Yes | 6420 (8.3) | 3358 (11.0) | 3062 (6.5) | |
| Dyslipidemia | < 0.001 | |||
| No | 37,469 (46.7) | 12,839 (40.7) | 24,630 (50.5) | |
| Yes | 41,312 (51.4) | 18,063 (57.3) | 23,249 (47.6) | |
| Reduced HDL-cholesterol | < 0.001 | |||
| No | 73,852 (92.0) | 27,275 (86.5) | 46,577 (95.4) | |
| Yes | 6461 (8.0) | 4240 (13.5) | 2221 (4.6) |