Table 1.

Non-parametric linkage analysis of phenotypes of the 200 Italian families by Merlin software

Phenotype	Prevalence	Families	Lod score	P-value	Empirical P-value
Overweight	85.20%	112	1.22	0.009	0.004
Obesity	47.50%	42	0.62	0.050	0.053

Prevalence = phenotype prevalence among the family subjects studied; Families = families number analyzed; Lod score = derived from the non-parametric linkage analysis by Merlin; Empirical P-value = derived from 1000 replicates by using the gene dropping method; Overweight = presence of BMI ≥25; Obesity = presence of BMI ≥30.