Table 1 Baseline characteristics of the study population by levels of leisure time physical activity
| Â | Leisure time physical activity | |||
|---|---|---|---|---|
|  | Inactive (n = 4914) | Low (n = 19 611) | Moderate (n = 22 419) | High (n = 20 020) |
Age in HUNT, years (mean, SD) | 55.1 ± 18.8 | 50.3 ± 15.8 | 47.2 ± 16.1 | 40.8 ± 14.3 |
Age in NAR, years (mean, SD) | 71.1 ± 8..9 | 68.9 ± 8.9 | 69.5 ± 9.4 | 66.3 ± 9.7 |
Time from baseline to final follow-up, years (mean, SD) | 13.1 ± 5.8 | 14.5 ± 4.9 | 14.5 ± 4.9 | 14.3 ± 5.0 |
BMI, kg/m2 (mean, SD) | 27.3 ± 4.9 | 26.7 ± 4.3 | 26.2 ± 4.0 | 25.7 ± 3.7 |
Sex, n (%) | ||||
 -Women | 2503 (50.9) | 11 706 (59.7) | 11 978 (53.4) | 8952 (44.7) |
 -Men | 2411 (49.1) | 7905 (40.3) | 10 441 (46.6) | 11 068 (55.3) |
Workload, n (%) | ||||
 -Sedentary | 1035 (21.1) | 4685 (23.9) | 5643 (25.2) | 5566 (27.8) |
 -Walking | 764 (15.6) | 4913 (25.1) | 6058 (27.0) | 5166 (25.8) |
 -Walking & lifting | 739 (15.0) | 4006 (20.4) | 4682 (20.9) | 4548 (22.7) |
 -Heavy physical work | 672 (13.7) | 1454 (7.4) | 1698 (7.6) | 2423 (12.1) |
 -Missing | 1704 (34.7) | 4553 (23.2) | 4338 (19.4) | 2317 (11.6) |
Smoking, n (%) | ||||
 -Never | 1791 (36.5) | 7643 (39.0) | 9388 (41.9) | 10 003 (50.0) |
 -Previous | 1274 (25.9) | 5359 (27.3) | 6245 (27.9) | 5099 (25.5) |
 -Current | 1748 (35.6) | 6306 (32.2) | 6496 (29.0) | 4642 (23.2) |
 -Missing | 101 (2.1) | 303 (1.6) | 290 (1.3) | 276 (1.4) |
Alcohol consumption, units/2wk, n (%) | ||||
 - 0 | 2245 (45.7) | 6901 (35.2) | 6612 (29.5) | 4167 (20.8) |
 - 1-4 | 1643 (33.4) | 8410 (42.9) | 9645 (43.0) | 8690 (43.4) |
 - 5-14 | 760 (15.5) | 3694 (18.8) | 5254 (23.4) | 5989 (29.9) |
 - >15 | 202 (4.1) | 445 (2.3) | 742 (3.3) | 1027 (5.1) |
 -Missing | 64 (1.3) | 161 (0.8) | 166 (0.7) | 147 (0.7) |
CVD, n (%) | 703 (14.3) | 1486 (7.6) | 1384 (6.2) | 614 (3.1) |
 -Missing | 9 (0.2) | 44 (0.2) | 43 (0.2) | 17 (0.1) |
Diabetes, n (%) | 271 (5.5) | 613 (3.1) | 533 (2.4) | 309 (1.5) |
 -Missing | 8 (0.2) | 34 (0.2) | 28 (0.1) | 14 (0.1) |