Skip to main content

Table 5 Effect of the intervention according to fitness status

From: 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

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)   0.60b   0.39d
Muscle strength and endurance        
Vertical jump (cm)      0.02b   0.15d
 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
  1. aP-value adjusted for BMI z-score, gender, socio economics status and all interaction terms between covariates and allocation group
  2. 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
  3. cP-value of the unadjusted analysis
  4. dP-value of interaction term between of fitness status (fit/low fitness) X allocation group (intervention/control) from unadjusted analysis.