Table 4.

Prediction model for dropout (Cox proportional hazards regressions) including all variables in the same model after using STEP algorithm to reduce variables that are not expected to improve predictions.

Characteristics	Beta-Coefficients + 95% CI	p-Value
12 min running test (m)	0.997 (0.994–0.999)	0.006
Cortisol (nmol/L)	1.006 (1.001–1.011)	0.017
IGF-1 (nmol/L)	1.082 (0.994–1.177)	0.069

All regressions adjusted for treatment condition beginning at day 6 of the military field training for treatment group.