Sicras-Mainar, AntoniAller, RocíoCrespo, JavierCalleja, José LuisTurnes, JuanRomero Gómez, ManuelAugustín, Salvador2023-02-092023-02-0920211130-0108http://hdl.handle.net/10668/16644to establish the clinical and economic consequences (resource utilization and healthcare costs) of non-alcoholic fatty liver in the setting of the usual clinical practice in Spain. an observational, retrospective study was performed based on a review of the medical records of adult patients ≥ 18 years of age who sought medical care from 2017 to 2018. Patients were categorized into two groups according to fibrosis stage (estimation method: FIB-4): a) F0-F2; and b) F3-F4 (advanced fibrosis). Follow-up lasted one year. Primary endpoints included comorbidity, concomitant medication, resource utilization and costs. Results were analyzed using a multivariate approach with p a total of 8,151 patients were recruited with a mean age of 61.1 years and 51.5 % were male. By group: a) mild fibrosis n = 7,127, 87.4 %; and b) advanced fibrosis n = 1,024, 12.6 % (6.8 % with liver cirrhosis). The most common comorbidities included 63 % dyslipidemia, 52 % obesity, 52 % hypertension and 35 % diabetes. The average number of drugs used was 2.1 per patient. Patients with advanced fibrosis (F3-F4) had a higher average number of concomitant medications (2.5 vs 2.1; p patients with advanced fibrosis were associated with more comorbidity and concomitant medications, which resulted in higher healthcare costs for the National Health System.enAdultBiopsyHealth Care CostsHumansLiverLiver CirrhosisMaleMiddle AgedNon-alcoholic Fatty Liver DiseaseRetrospective StudiesSeverity of Illness IndexSpainresearch article33222473open access10.17235/reed.2020.7238/2020https://doi.org/10.17235/reed.2020.7238/2020