Variabele | PRE Mean (SE) | MID Mean (SE) | POST Mean (SE) | Group x time (Ref: contr x pre) Beta (SE) | Group x time*school (Ref: contr x pre x prim) Beta (SE) |
---|---|---|---|---|---|
Sitting time at schoola (min/day) | I: 334.3 (15.6) C: 332.1 (16.1) | I: 306.0 (15.5) C: 303.8 (16.1) | I: 342.5 (15.5) C: 327.0 (16.1) | Mid: − 0.005(0.030) Post: 0.026(0.030) | Mid: 0.128(0.059) Post: − 0.084(0.059) |
Number of breaks in sitting time at school (per lesson hour) | I: 2.4 (0.3) C: 2.2 (0.3) | I: 2.2 (0.3) C: 2.2 (0.3) | I: 2.3 (0.3) C: 2.2 (0.3) | Mid: − 0.182(0.144) Post: 0.042(0.145) | Mid: 0.359(0.289) Post: − 0.393(0.289) |
Relationship with classmatesa (1–5) | I: 4.4 (0.1) C: 4.2 (0.1) | I: 4.4 (0.1) C: 4.2 (0.1) | I: 4.3 (0.1) C: 4.2 (0.1) | Mid: −0.007(0.011) Post: − 0.024(0.011) | Mid: − 0.023(0.022) Post: − 0.041(0.022) |
Involvement in organizing school activities (1–5) | I: 3.8 (0.1) C: 3.6 (0.1) | I: 3.8 (0.1) C: 3.4 (0.1) | I: 3.9 (0.1) C: 3.4 (0.1) | Mid: 0.106(0.147) Post: 0.230(0.147) | Mid: 0.461(0.295) Post: 0.359(0.294) |
Relationship with teachers (1–5) | I: 4.1 (0.1) C: 3.6 (0.2) | I: 4.0 (0.1) C: 3.5 (0.2) | I: 4.0 (0.1) C: 3.7 (0.1) | Mid: −0.057(0.122) Post: − 0.137(0.121) | Mid: 0.312(0.244) Post: 0.336(0.243) |
Screen-time (min/day) | I: 168.9 (13.9) C: 152.7 (14.8) | I: 165.4 (13.9) C: 155.8 (14.8) | I: 166.5 (13.9) C: 147.6 (14.7) | Mid: −7.722(8.572) Post: 3.144(8.591) | Mid: 19.812(17.116) Post: 12.141(17.147) |
Attitude towards breaking up sitting timea (1–5) | I: 4.3 (0.1) C: 4.3 (0.1) | I: 4.3 (0.1) C: 4.2 (0.1) | I: 4.3 (0.1) C: 4.4 (0.1) | Mid: 0.037(0.046) Post: − 0.016(0.046) | Mid: 0.016(0.092) Post: 0.056(0.092) |
Preference to break up sitting time (1–5) | I: 3.9 (0.1) C: 3.9 (0.1) | I: 3.9 (0.1) C: 3.9 (0.1) | I: 4.0 (0.1) C: 3.6 (0.1) | Mid: 0.017(0.155) Post: − 0.202(0.155) | Mid: −0.249(0.311) Post: 0.059(0.310) |
Habit of breaking up sitting time (1–5) | I: 3.6 (0.1) C: 3.6 (0.1) | I: 3.6 (0.1) C: 3.6 (0.1) | I: 3.6 (0.1) C: 3.5 (0.1) | Mid: −0.043(0.174) Post: − 0.119(0.174) | Mid: − 0.800(0.349) Post: − 0.682(0.349) |
Self-efficacy to break up sitting time a (1–5) | I: 3.1 (0.1) C: 3.4 (0.1) | I: 3.2 (0.1) C: 3.1 (0.1) | I: 3.3 (0.1) C: 3.5 (0.1) | Mid: 0.111(0.064) Post: 0.011(0.064) | Mid: −0.163(0.129) Post: − 0.233(0.129) |