Table 2 Descriptive statistics of the study variables
Primary school | Lower secondary school | Between | ||||||
|---|---|---|---|---|---|---|---|---|
(Grades 4-5) | (Grades 7-8) | School levels | ||||||
Boys (n = 308) | Girls (n = 271) | p for sex | Boys (n = 436) | Girls (n = 448) | p for sex | p for boys | p for girls | |
Different physical activities at recess (range 0-3) | ||||||||
Sitting (n) | 250 | 230 | 402 | 431 | ||||
Mean, SD | 0.62, 0.69 | 0.73, 0.60 | 0.072 | 1.82, 0.70 | 1.70, 0.69 | 0.009 | <0.001 | <0.001 |
Standing around (n) | 254 | 235 | 383 | 434 | ||||
Mean, SD | 1.22, 0.93 | 1.28, 0.79 | 0.440 | 1.70, 0.76 | 1.79, 0.68 | 0.085 | <0.001 | <0.001 |
Walking (n) | 264 | 246 | 336 | 417 | ||||
Mean, SD | 1.91, 0.93 | 2.17, 0.78 | 0.001 | 1.59, 0.85 | 1.59, 0.78 | 0.938 | <0.001 | <0.001 |
Physically active play (n) | 269 | 246 | 356 | 398 | ||||
Mean, SD | 1.81, 0.98 | 1.49, 0.85 | <0.001 | 0.75, 0.80 | 0.39, 0.64 | <0.001 | <0.001 | <0.001 |
Ball games (n) | 259 | 232 | 352 | 394 | ||||
Mean, SD | 1.85, 0.99 | 1.06, 0.95 | <0.001 | 0.56, 0.76 | 0.21, 0.45 | <0.001 | <0.001 | <0.001 |
PA at recess1 (range 0-3) (n) | 303 | 267 | 433 | 448 | ||||
Mean, SD | 1.99, 0.50 | 1.79, 0.50 | <0.001 | 1.08, 0.54 | 0.96, 0.40 | <0.001 | <0.001 | <0.001 |
Overall PA (range 0-7) | ||||||||
Days per week with ≥60 min MVPA (n) | 297 | 256 | 425 | 429 | ||||
Mean, SD | 4.98, 2.02 | 4.55, 1.87 | 0.010 | 4.53, 2.00 | 4.13, 1.77 | 0.002 | 0.003 | 0.003 |
School-related social factors (range 0-4) | ||||||||
Peer relationships at school (n) | 285 | 257 | 403 | 431 | ||||
Mean, SD | 3.01, 0.68 | 3.02, 0.65 | 0.909 | 2.81, 0.62 | 2.82, 0.57 | 0.747 | <0.001 | <0.001 |
Relatedness to school (n) | 293 | 257 | 415 | 440 | ||||
Mean, SD | 3.05, 0.83 | 3.04, 0.85 | 0.883 | 2.76, 0.76 | 2.82, 0.73 | 0.239 | <0.001 | 0.001 |
School climate (n) | 304 | 266 | 425 | 445 | ||||
Mean, SD | 3.12, 0.72 | 3.11, 0.75 | 0.970 | 2.80, 0.78 | 2.84, 0.65 | 0.356 | <0.001 | <0.001 |