Objective: GALIPEMIAS is a study designed to determine the prevalence of familial dyslipidemias in the adult population of Galicia, evaluate the degree of lipid control according to the criteria of current clinical guidelines and analyze its association with atherosclerotic cardiovascular disease (ASCVD).

Methods: Cross-sectional study carried out in the general population over 18years of age residing in Galicia and with a health card from the Galician Health Service (n=1,000). The sample was selected by random cluster sampling. The prevalence of familial combined hyperlipidemia (FCH), hypercholesterolemia with dominant inheritance pattern (HC-DI) and familial hypertriglyceridemia (FHTG), as well as suspected familial dysbetalipoproteinemia (FDB) and the joint prevalence of familial dyslipidemias with dominant inheritance (FDL-DI) were analyzed. For the assessment of cardiovascular risk (CVR), the criteria of the 2021 European guidelines for cardiovascular prevention were followed. The LDL-C control target required according to the CVR level was defined according to the 2019 European ESC/EAS guidelines.

Results: The prevalence of FCH was 15.9% (95%CI: 13.6-18.4%), that of HC-DI 5.9% (95%CI: 4.5-7.6%), that of FHTG 1.7% (95%CI: 1.0-2.8%) and that of subjects with suspected FDB 0.9% (95%CI 0.4-1.6%). The joint prevalence of FDL-DI was 23.5% (95%CI: 20.8-26.3%), also present in 1 in 3 subjects with ASCVD. Overall, 60.5% of participants with FDL-DI had high or very high CV risk and 4.6% of them were on target for LDL-C control.

Conclusions: The presence of familial dyslipidemia with dominant inheritance is the majority among the adult population living in Galicia with dyslipidemia, with FCH being the most prevalent of them. These subjects are underdiagnosed, are generally at high or very high cardiovascular risk, hardly receive lipid-lowering treatment (1 in 3) and the degree of LDL-C control according to guidelines is very poor. .