Table 5.

Pairwise comparisons among three groups according to age of patients.

	p-Value Group 1 vs 2	p-Value Group 1 vs 3	p-Value Group 2 vs 3
BMI SD	<0.001	<0.001	n.s.
HOMA-IR	n.s.	0.006	0.006
Fasting insulin (µUI/ml)	n.s.	0.007	0.006
BMI SD >2.5	<0.001	<0.001	n.s.
HOMA-IR >2.5	n.s.	n.s.	0.009

For only variables that significantly differ in comparison among three groups (Table 4), the pairwise comparisons were performed, using Student’s t-test (for numerical parameters) and chi-squared test (for categorical variables); in this context, we applied the Bonferroni correction to control the multiplicity effect (adjusted α is 0.017).