Table 4.

Univariate and multivariate analysis of diet by logistic regression

	Univariate analysis		Multivariate analysis
Factors*	Odds ratio (95% CI)	p	Odds ratio (95% CI)	p
Gender		0.003		0.002
Boys (n = 397)	1		1
Girls (n = 482)	1.44 (1.14-1.83)		1.72 (1.23-2.40)
Self-esteem		< 0.0001		0.0001
Positive (n = 61)	1		1
Normal (n = 595)	2.61 (1.39-4.91)	< 0.0001	2.55 (1.26-5.14)	0.0002
Negative (n = 223)	1.51 (0.82-2.78)	0.71	1.23 (0.63-2.39)	0.20
BMI		< 0.0001		< 0.0001
Underweight (n = 84)	1		1
Average-weight (n = 598)	2.54 (1.32-4.87)	0.005	3.85 (1.72-8.60)	0.001
Overweight (n = 165)	6.72 (3.37-13.4)	< 0.0001	11.2 (4.78-26.1)	< 0.0001
Obese (n = 32)	14.9 (6.10-36.7)	< 0.0001	29.8 (9.82-90.5)	< 0.0001
Province		0.06		0.06
Palermo (n = 238)	1		1
Catania (n = 243)	0.86 (0.63-1.18)	0.46	0.78 (0.52-1.17)	0.69
Caltanissetta (n = 250)	0.78 (0.57-1.06)	0.80	0.78 (0.52-1.18)	0.70
Messina (n = 148)	0.61 (0.42-0.88)	0.03	0.49 (0.29-0.83)	0.02

*Numbers were furnished for the multivariate analysis