Table 1. Selected Baseline (Year 0) and Year 25 Participant Characteristics by MPA and VPA Trajectory Groups (N = 2833).
| Characteristicsa | Mean (SD) | |||||
|---|---|---|---|---|---|---|
| MPA trajectories | VPA trajectories | |||||
| Very low stable (n = 1514) | Low increasing (n = 1096) | Moderate increasing (n = 223) | Low stable (n = 1649) | Moderate decreasing (n = 1015) | High decreasing (n = 169) | |
| Baseline (Year 0) | ||||||
| Age, y | 24.8 (3.7) | 25.1 (3.5) | 25.1 (3.5) | 25.0 (3.7) | 25.0 (3.5) | 24.9 (3.2) |
| Race, No. (%) | ||||||
| Black | 896 (59.2) | 418 (38.1) | 65 (29.1) | 890 (54) | 413 (40.7) | 76 (45) |
| White | 618 (40.8) | 678 (61.9) | 158 (70.9) | 759 (46) | 602 (59.3) | 93 (55) |
| Sex, No. (%) | ||||||
| Male | 540 (35.7) | 538 (49.1) | 128 (57.4) | 484 (29.4) | 588 (57.9) | 134 (79.3) |
| Female | 974 (64.3) | 558 (50.9) | 95 (42.6) | 1165 (70.6) | 427 (42.1) | 35 (20.7) |
| Education, y | 13.7 (2.2) | 14.3 (2.2) | 14.4 (2.0) | 13.8 (2.1) | 14.2 (2.2) | 14.6 (2.1) |
| Currently smoking, No. (%) | 389 (25.7) | 290 (26.5) | 44 (20) | 438 (26.6) | 252 (24.8) | 33 (19.5) |
| Currently drinking alcohol, No. (%) | 1260 (83.2) | 969 (88.4) | 201 (90) | 1381 (83.7) | 896 (88.3) | 153 (90.5) |
| Alcohol intake, mL/d | 128.5 (276.0) | 168.9 (325.8) | 215.5 (362.0) | 119.4 (263.7) | 186.7 (346.8) | 243.9 (359.6) |
| Diet quality score | 4.6 (0.9) | 5.1 (1.0) | 5.3 (1.1) | 4.7 (0.9) | 5.0 (1.0) | 5.2 (1.1) |
| Total physical activity, EU | 295.3 (221.8) | 503.0 (276.4) | 800.3 (367.4) | 271.4 (189.5) | 563.5 (266.8) | 930.8 (333.4) |
| MPA, EU | 95.4 (77.2) | 175.7 (98.4) | 294.0 (124.7) | 112.1 (88.5) | 174.3 (111.3) | 242.0 (134.4) |
| VPA, EU | 199.8 (184.5) | 327.3 (228.5) | 506.3 (294.5) | 159.3 (139.3) | 389.3 (207.5) | 688.7 (261.9) |
| BMI | 24.8 (5.3) | 24.4 (4.5) | 23.9 (3.9) | 25.0 (5.5) | 24.0 (4.0) | 23.9 (3.3) |
| Waist circumference, cm | 77.5 (11.8) | 78.0 (10.6) | 77.2 (10.2) | 77.7 (12.1) | 77.5 (10.0) | 78.7 (9.2) |
| Year 25 | ||||||
| Age, y | 50.0 (3.8) | 50.2 (3.5) | 50.3 (3.6) | 50.1 (3.7) | 50.1 (3.6) | 50.0 (3.2) |
| Education, y | 14.7 (2.7) | 15.4 (2.6) | 15.3 (2.4) | 14.8 (2.7) | 15.3 (2.6) | 15.5 (2.7) |
| Currently smoking, No. (%) | 296 (19.6) | 263 (24.0) | 29 (13) | 339 (20.6) | 236 (23.3) | 28 (16.6) |
| Currently drinking alcohol, No. (%) | 1074 (70.9) | 886 (80.8) | 188 (84.3) | 1190 (72.2) | 820 (80.8) | 138 (81.7) |
| Alcohol intake, mL/d | 97.7 (153.8) | 130.0 (174.4) | 131.6 (163.6) | 90.7 (149.9) | 138.7 (174.4) | 167.0 (185.4) |
| Diet quality score | 5.2 (1.0) | 5.6 (0.9) | 5.9 (1.0) | 5.2 (0.9) | 5.6 (1.0) | 5.7 (1.0) |
| Total physical activity, EU | 206.4 (187.7) | 436.6 (260.4) | 692.4 (308.1) | 202.5 (165.6) | 459.3 (244.1) | 854.7 (325.8) |
| MPA, EU | 75.3 (66.2) | 181.0 (94.6) | 302.2 (111.4) | 102.1 (88.2) | 167.6 (111.2) | 243.3 (133.3) |
| VPA, EU | 131.1 (160.6) | 255.6 (223.3) | 390.3 (258.6) | 100.4 (119.4) | 291.7 (192.2) | 611.4 (275.2) |
| BMI | 31.2 (7.6) | 29.8 (6.7) | 28.5 (5.6) | 31.6 (7.7) | 29.0 (6.1) | 27.8 (5.1) |
| Waist circumference, cm | 95.6 (16.5) | 94.3 (15.6) | 92.0 (14.1) | 96.4 (16.6) | 92.9 (15.1) | 91.2 (13.5) |
| Liver attenuation, HU | 56.0 (11.8) | 54.9 (11.9) | 54.9 (11.3) | 55.3 (12.5) | 55.8 (11.1) | 55.3 (9.8) |
| <51, No. (%) | 352 (23.2) | 275 (25.1) | 54 (24.2) | 412 (25.0) | 234 (23.1) | 35 (20.7) |
| ≤40, No. (%) | 141 (9.3) | 118 (10.8) | 22 (9.9) | 172 (10.4) | 96 (9.5) | 13 (7.7) |
Abbreviations: BMI, body mass index (calculated as weight in kilograms divided by height in meters squared); EU, exercise units; HU, Hounsfield unit; MPA, moderate-intensity physical activity; VPA, vigorous-intensity physical activity.
a
All variables have less than 1% missing, except for diet quality score Y20 (21% missing).