Table 1 Descriptive characteristics of participants included in the cross-sectional (N = 3871) and longitudinal analyses (N = 2302)
Cross-sectional analysis | Longitudinal analysis | |
|---|---|---|
Frequency (%) or Mean ± SD | Frequency (%) or Mean ± SD | |
At baseline | ||
Age (year) | 11.3 ± 1.2 | 11.4 ± 1.2 |
Sex | ||
Male | 1801 (46.5) | 1048 (45.5) |
Female | 2070 (53.5) | 1254 (54.5) |
Maternal education | ||
High school | 1243 (32.1) | 709 (30.8) |
College | 1739 (44.9) | 1005 (43.7) |
University | 889 (23.0) | 588 (25.5) |
Active travel | ||
Active mode | 1654 (42.7) | 970 (42.1) |
Other mode | 2217 (57.3) | 1332 (57.9) |
Organised sport | ||
Never | 391 (10.1) | 240 (10.4) |
Occasionally | 1060 (27.4) | 651 (28.3) |
Sometimes | 794 (20.5) | 480 (20.9) |
Often | 908 (23.5) | 545 (23.7) |
Usually | 718 (18.6) | 386 (16.8) |
Physical education | ||
0–59 min | 207 (5.4) | 144 (6.3) |
60–89 min | 546 (14.1) | 381 (16.6) |
90–119 min | 949 (24.5) | 574 (24.9) |
120–149 min | 1737 (44.9) | 952 (41.4) |
≥ 150 min | 432 (11.2) | 251 (10.9) |
Season | ||
Winter | 698 (18.0) | 473 (20.6) |
Spring | 1971 (50.9) | 1119 (48.6) |
Summer | 717 (18.5) | 397 (17.3) |
Autumn | 485 (12.5) | 313 (13.6) |
MVPA (min/day) | 54.5 ± 26.0 | 54.7 ± 25.6 |
MPA (min/day) | 38.7 ± 16.2 | 38.6 ± 15.9 |
VPA (min/day) | 15.8 ± 12.6 | 16.0 ± 12.4 |
PA guidelines | ||
Meeting guidelines | 1391 (35.9) | 837 (36.4) |
Not meeting guidelines | 2480 (64.1) | 1465 (63.6) |
Monitor wear time (min/day) | 765.4 ± 60.6 | 773.4 ± 57.4 |
From baseline to follow-upsa | ||
Follow-up duration (year) | – | 2.5 ± 1.0 |
Difference in seasons | ||
Same | – | 2052 (66.2) |
Shorter/colder | – | 573 (18.5) |
Longer/warmer | – | 477 (15.4) |
Annual change in MVPA (min/day) | – | −2.5 ± 12.6 |
Annual change in MPA (min/day) | – | −2.2 ± 8.3 |
Annual change in VPA (min/day) | – | −0.2 ± 6.8 |
Annual change in monitor wear time (min/day) | – | 5.1 ± 37.9 |
Annual change in number of valid days | – | −0.1 ± 0.6 |