Table 1. Characteristics of the study population in relation to number of follow-up tests. [SD=standard deviation].
| 2 Tests (N=84 207) | 3 Tests (N=17 490) | 4 Tests (N=3 449) | 5 Tests (N=731) | 6 Tests (N=128) | Overall (N=106 005) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| N (%) | Mean (SD) | N (%) | Mean (SD) | N (%) | Mean (SD) | N (%) | Mean (SD) | N (%) | Mean (SD) | N (%) | Mean (SD) | |||||||
| Sex | ||||||||||||||||||
| Men | 43 786 (52) | 9 838 (56) | 1 990 (58) | 443 (61) | 84 (66) | 56 141 (53) | ||||||||||||
| Women | 40 421 (48) | 7 652 (44) | 1 459 (42) | 288 (39) | 44 (34) | 49 864 (47) | ||||||||||||
| Age at baseline (years) | 43.7 (11.3) | 43.7 (11.2) | 44.6 (10.9) | 44.9 (11.3) | 45.9 (11.5) | 43.8 (11.2) | ||||||||||||
| Time from baseline (years) | ||||||||||||||||||
| Within year 1 | 25 731 (31) | 1 406 (8.0) | 50 (1.4) | 0 (0) | 0 (0) | 27 187 (26) | ||||||||||||
| Within year 2 | 22 082 (26) | 2 603 (15) | 333 (9.7) | 12 (1.6) | 2 (1.6) | 25 032 (24) | ||||||||||||
| Within year 3 | 17 842 (21) | 3 439 (20) | 694 (20) | 89 (12) | 3 (2.3) | 22 067 (21) | ||||||||||||
| Within year 4 | 12 152 (14) | 5 019 (29) | 1 133 (33) | 221 (30) | 25 (20) | 18 550 (17) | ||||||||||||
| Within year 5r | 6 400 (7.6) | 5 023 (29) | 1 239 (36) | 409 (56) | 98 (77) | 13 169 (12) | ||||||||||||
| Weight at baseline (kg) | 78.4 (15.7) | 79.0 (15.8) | 79.4 (15.8) | 80.1 (15.4) | 80.6 (13.8) | 78.5 (15.7) | ||||||||||||
| Weight change (kg) | 0.4 (4.1) | 0.7 (4.8) | 0.7 (4.9) | 0.9 (5.1) | 0.8 (5.4) | 0.5 (4.3) | ||||||||||||
| Exercise at baseline | ||||||||||||||||||
| Never | 8 979 (11) | 1 960 (11) | 378 (11) | 75 (10) | 9 (7.0) | 11 401 (11) | ||||||||||||
| Sometimes | 20 200 (24) | 4 248 (24) | 811 (24) | 185 (25) | 29 (23) | 25 473 (24) | ||||||||||||
| 1–2 times/week | 28 094 (33) | 5 940 (34) | 1 240 (36) | 253 (35) | 49 (38) | 35 576 (34) | ||||||||||||
| 3–5 times/week | 23 017 (27) | 4 567 (26) | 866 (25) | 187 (26) | 36 (28) | 28 673 (27) | ||||||||||||
| ≥ 6 times/week | 3 917 (4.7) | 775 (4.4) | 154 (4.5) | 31 (4.2) | 5 (3.9) | 4 882 (4.6) | ||||||||||||
| Exercise change | 0.1 (1.0) | 0.2 (1.1) | 0.2 (1.1) | 0.3 (1.1) | 0.2 (1.2) | 0.2 (1.0) | ||||||||||||
| Health at baseline | ||||||||||||||||||
| Very poor | 471 (0.6) | 83 (0.5) | 15 (0.4) | 2 (0.3) | 0 (0) | 571 (0.5) | ||||||||||||
| Poor | 4 784 (5.7) | 925 (5.3) | 182 (5.3) | 39 (5.3) | 3 (2.3) | 5 933 (5.6) | ||||||||||||
| Neither good or bad | 21 833 (26) | 4 596 (26) | 957 (28) | 187 (26) | 36 (28) | 27 609 (26) | ||||||||||||
| Good | 47 862 (57) | 9 946 (57) | 1 928 (56) | 435 (60) | 71 (55) | 60 242 (57) | ||||||||||||
| Very good | 9 257 (11) | 1 940 (11) | 367 (11) | 68 (9.3) | 18 (14) | 11 650 (11) | ||||||||||||
| Health change | 0.1 (0.7) | 0.1 (0.8) | 0.1 (0.8) | 0.1 (0.7) | 0.0 (0.8) | 0.1 (0.7) | ||||||||||||