表 2. Baseline characteristics of the study participants.
研究对象的基线特征
| Characteristic | Overall
( n = 251478) |
CBA acceleration < －1
( n = 125399) |
|CBA acceleration |≤ 1
( n = 24684) |
CBA acceleration > 1
( n = 101395) |
P |
| * The socioeconomic status is measured by Townsend deprivation index. | |||||
| Age/yr., mean (SD) | 56.83 (8.10) | 56.65 (8.22) | 57.10 (8.10) | 56.98 (7.94) | < 0.001 |
| Sex/case (%) | < 0.001 | ||||
| Male | 125168 (49.8) | 62117 (49.5) | 10223 (41.4) | 52828 (52.1) | |
| Female | 126310 (50.2) | 63282 (50.5) | 14461 (58.6) | 48567 (47.9) | |
| Education/case (%) | 0.522 | ||||
| High | 95566 (38.0) | 47480 (37.9) | 9381 (38.0) | 38705 (38.2) | |
| Intermediate | 95862 (38.1) | 48063 (38.3) | 9379 (38.0) | 38420 (37.9) | |
| Low | 16646 (6.6) | 8291 (6.6) | 1654 (6.7) | 6701 (6.6) | |
| Other | 43404 (17.3) | 21565 (17.2) | 4270 (17.3) | 17569 (17.3) | |
| BMI/(kg/m 2), mean (SD) | 27.02 (4.43) | 24.89 (3.09) | 26.81 (3.43) | 29.70 (4.61) | < 0.001 |
| Socioeconomic status * (mean [SD]) | －1.55 (2.92) | －1.74 (2.83) | －1.66 (2.85) | －1.29 (3.04) | < 0.001 |
| Race/case (%) | < 0.001 | ||||
| White | 241266 (95.9) | 121588 (97.0) | 23778 (96.3) | 95900 (94.6) | |
| Other | 10212 (4.1) | 3811 (3.0) | 906 (3.7) | 5495 (5.4) | |
| Family history of CVD/case (%) | 0.56 (0.50) | 0.54 (0.50) | 0.57 (0.50) | 0.58 (0.49) | < 0.001 |
| Total lifestyle score (mean [SD]) | 4.87 (1.33) | 5.09 (1.26) | 4.91 (1.30) | 4.59 (1.37) | < 0.001 |
| Lifestyle class/case (%) | < 0.001 | ||||
| Favorable | 158846 (63.2) | 87633 (69.9) | 15789 (64.0) | 55424 (54.7) | |
| Intermediate | 90491 (36.0) | 37198 (29.7) | 8763 (35.5) | 44530 (43.9) | |
| Unfavorable | 2141 (0.9) | 568 (0.5) | 132 (0.5) | 1441 (1.4) | |
| Lifestyle component | |||||
| Physical activity/case (%) | < 0.001 | ||||
| Unfavorable | 58540 (23.3) | 24985 (19.9) | 5499 (22.3) | 28056 (27.7) | |
| Healthy | 192938 (76.7) | 100414 (80.1) | 19185 (77.7) | 73339 (72.3) | |
| Alcohol consumption/case (%) | < 0.001 | ||||
| Unfavorable | 80748 (32.1) | 36955 (29.5) | 8080 (32.7) | 35713 (35.2) | |
| Healthy | 170730 (67.9) | 88444 (70.5) | 16604 (67.3) | 65682 (64.8) | |
| Social connection/case (%) | < 0.001 | ||||
| Unfavorable | 30374 (12.1) | 14499 (11.6) | 2743 (11.1) | 13132 (13.0) | |
| Healthy | 221104 (87.9) | 110900 (88.4) | 21941 (88.9) | 88263 (87.0) | |
| Never smoke/case (%) | < 0.001 | ||||
| Unfavorable | 115830 (46.1) | 53222 (42.4) | 11165 (45.2) | 51443 (50.7) | |
| Healthy | 135648 (53.9) | 72177 (57.6) | 13519 (54.8) | 49952 (49.3) | |
| Sleep/case (%) | < 0.001 | ||||
| Unfavorable | 62753 (25.0) | 28688 (22.9) | 6038 (24.5) | 28027 (27.6) | |
| Healthy | 188725 (75.0) | 96711 (77.1) | 18646 (75.5) | 73368 (72.4) | |
| Sedentary/case (%) | < 0.001 | ||||
| Unfavorable | 76581 (30.5) | 31935 (25.5) | 7412 (30.0) | 37234 (36.7) | |
| Healthy | 174897 (69.5) | 93464 (74.5) | 17272 (70.0) | 64161 (63.3) | |
| Diet/case (%) | < 0.001 | ||||
| Unfavorable | 109587 (43.6) | 48616 (38.8) | 10558 (42.8) | 50413 (49.7) | |
| Healthy | 141891 (56.4) | 76783 (61.2) | 14126 (57.2) | 50982 (50.3) | |