Table 3. Final adjustment of the logistic regression model for the occurrence of a Cystic Fibrosis Questionnaire under 80.

Variables	B	p-value	OR	CI95%
HGS (%)	0.56	0.04*	1.06	1.00-1.12
FEV1 (%)	-0.46	0.11	0.96	0.90-1.01
FEV1/FVc (%)	0.12	0.03*	1.12	1.01-1.25

B: intercept of logistic regression; OR: Odds Ratio; 95% CI: 95% confidence interval; HGS: Hand Grip Strength; FEV₁: forced expiratory volume in the first second; FVC: forced vital capacity; *p≤0.05. The initial model was adjusted for the variables gender, age, bacterial colonization, height, body mass index and the distance covered in the 6-minute walk test. The final model presented as statistically significant variables the handgrip strength and the ratio between the forced expiratory volume in the first second and the forced vital capacity.