"Given the significant association of HP1/1 genotype and HP1 allele with increased life-expectancy, we also performed HP1F/S subtyping to check the possible existence for a preferential advantage of HP1F or HP1S allele... No significant differences were noticed between age groups studied either considering total HP1F and HP1S allele frequencies... or according to HP 1/2 genotypes...". The population was divided into 3 sex-specific age classes: for men [women], Age Class 1: <66 years old [<73], Age Class 2: 66–88 [73–91], Age Class 3: >88 [>91]
Ethnicity: Italian
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