Only two of the seven analyzed polymorphisms have been studied in HT patients: LDLR c.1959C>T (Chinese population) [12] and LPL p.S474X (Chinese and Caucasian populations) [23]; similar to the results of the present study, the authors did not report significant differences in the genotypic and allelic frequency distribution. The gene discussed is LDLR; the disease is hematocrit.