Table 2.
Isometric log-ratio regression models examining play behavior composites and FMS.
| Total Skills Score | Object-Control Skills | Locomotor Skills | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Model | X 2 | df | Pr (>X2) | X 2 | df | Pr (>X2) | X 2 | df | Pr (>X2) |
| Activity Level | |||||||||
| Activity Level Ilr | 7.66 | 4 | 0.105 | 9.04 | 4 | 0.060 | 3.04 | 4 | 0.551 |
| Body mass index | 1.51 | 1 | 0.219 | 1.73 | 1 | 0.189 | 0.63 | 1 | 0.428 |
| Sex | 0.72 | 1 | 0.397 | 10.04 | 1 | 0.002 * | 4.48 | 1 | 0.034 * |
| Age | 19.30 | 1 | 0.000 * | 16.36 | 1 | 0.000 * | 12.48 | 1 | 0.000 * |
| Activity Type | |||||||||
| Activity Type Ilr | 11.66 | 4 | 0.020 * | 7.80 | 4 | 0.092 | 9.93 | 4 | 0.042 * |
| Body mass index | 3.69 | 1 | 0.054 | 4.00 | 1 | 0.046 * | 1.47 | 1 | 0.225 |
| Sex | 0.08 | 1 | 0.782 | 6.85 | 1 | 0.009 * | 6.27 | 1 | 0.012 * |
| Age | 15.32 | 1 | 0.000 * | 11.55 | 1 | 0.001 * | 10.06 | 1 | 0.002 * |
| Group Size | |||||||||
| Group Size Ilr | 0.84 | 3 | 0.840 | 0.85 | 3 | 0.836 | 1.51 | 3 | 0.679 |
| Body mass index | 2.81 | 1 | 0.093 | 2.84 | 1 | 0.092 | 1.35 | 1 | 0.245 |
| Sex | 0.29 | 1 | 0.593 | 7.63 | 1 | 0.006 * | 5.11 | 1 | 0.024 * |
| Age | 15.61 | 1 | 0.000 * | 13.26 | 1 | 0.000 * | 10.38 | 1 | 0.001 * |
Notes. Ilr = play behavior composite variable; X2 = chi-square value; df = degrees of freedom; Pr (>X2) = probability of observed chi-square statistic that indicates whether the regression coefficient is not equal to zero in the model; * significant association with the FMS outcomes (p < 0.05). All models included preschool as a random factor to account for nesting of participants.