this study on pre-schoolers N = 44 (%) | health survey on pre-schoolers N = 931 (%) | z | p | |
before 7 am | 14 (31.8) | 232 (24.9) | 1.030 | 0.303 |
7 - 8 am | 25 (56.8) | 580 (62.3) | −0.732 | 0.464 |
after 8 am | 5 (11.4) | 102 (11.0) | 0.085 | 0.933 |
N.A. | 0 (0.0) | 17 (1.8) | −0.898 | 0.369 |