Two years of school-based intervention program could improve the physical fitness among Ecuadorian adolescents at health risk: subgroups analysis from a cluster-randomized trial

Table 5 Effect of the intervention according to fitness status

Outcomes	All	Control	Intervention	Adjusted		Unadjusted
	n	Mean (DS)	Mean (DS)	β [95 % CI]	P ^a	β [95 % CI]	P ^c
Fitness (EUROFIT)
Speed-agility
Speed shuttle run (s)	971	2.69 (3.44)	1.89 (2.40)		0.60^b		0.39^d
Muscle strength and endurance
Vertical jump (cm)					0.02^b		0.15^d
Fit	219	2.23 (6.73)	3.69 (7.19)	1.28 [−1.77; 4.32]	0.41	-	-
Low fit	768	−0.54 (6.22)	1.58 (6.66)	3.71 [1.15; 6.28]	0.005	-	-
Accelerometer data
% who meet the PA recommendation (60 min MVPA/day)	130	−18.09	−5.87		0.94		0.30

^aP-value adjusted for BMI z-score, gender, socio economics status and all interaction terms between covariates and allocation group
^bP-value of the interactions terms of fitness status (fit/low fitness) X allocation group (intervention/control) after adjusting for BMI z-score, gender, socio economic status and including all interactions between covariates and allocation group
^cP-value of the unadjusted analysis
^dP-value of interaction term between of fitness status (fit/low fitness) X allocation group (intervention/control) from unadjusted analysis.

ISSN: 1471-2431