. 2024 Nov 25;21(12):1554. doi: 10.3390/ijerph21121554

Table 5.

Interaction effect of age and gender for PF tests (N = 349).

Year Group	Boys (n = 165)					Girls (n = 184)					d
Year Group	EMM	SE	df	Lower CL	Upper CL	EMM	SE	df	Lower CL	Upper CL	d
Sit-ups
6 yo	4.07	0.40	873.67	3.01	5.13	4.13	0.40	873.67	3.09	5.18	−0.02
9 yo	19.03	0.40	873.67	17.98	20.09	16.22	0.40	873.67	15.17	17.26	0.65 ^##
12 yo	12.95	0.40	873.67	11.89	14.01	10.36	0.40	873.67	9.32	11.41	0.60 ^##
Push-ups
6 yo	10.89	0.44	979.07	9.73	12.05	9.33	0.43	979.07	8.18	10.47	0.31 ^#
9 yo	21.47	0.44	979.07	20.31	22.62	16.07	0.43	979.07	14.93	17.21	1.05 ^###
12 yo	18.53	0.44	979.07	17.37	19.69	11.84	0.43	979.07	10.70	12.99	1.30 ^###
VO₂max ^
9 yo	43.61	0.37	576.56	42.68	44.54	40.85	0.37	576.56	39.93	41.76	0.78 ^##
12 yo	44.53	0.37	576.56	43.61	45.46	39.17	0.37	576.56	38.25	40.08	1.51 ^###

EMM = Estimate marginal mean; df = Degrees of freedom; CL = Confidence level; d = Effect size; ^# = Small practical significance; ^## = Medium practical significance; ^### = Strong practical significance; ^ = Not measured in 2010; yo = Years old.