The Influence of SARS-CoV-2 Lifestyle Changes on Non-alcoholic Fatty Liver Disease Evolution

The investigators performed a four years retrospective study on a NAFLD cohort from January 2018 to January 2022, dividing the study period in accordance to the beginning of the European SARS-CoV-2 spread in January 2020: two years before the pandemic followed by an equal period during the pandemic. The investigators routinely followed-up the enrolled patients with clinical, biochemical and imaging assessments in accordance with the current CPG and presented the data as mean values of the recordings occurred during the specific period of observation for insulin, fasting plasma glucose (FPG), the homeostatic model assessment for insulin resistance (HOMA-IR), aspartate aminotransferase (AST), alanine aminotransferase (ALT), platelets count (PLT), plasma albumin. Baseline (T0), intermediate (at the end of the pre-pandemic period, January 2020: T1), and end of the study (January 2022 T2) weight, body mass index (BMI), liver stiffness measurement (LSM) and controlled attenuation parameter (CAP), NAFLD fibrosis score (NFS) and multicompartment bioimpedance body composition analysis were also performed. Moreover, a physical activity investigation in terms of hours per week of physical exercise and daily caloric intake were collected by administering a standardized questionnaire. The Alcohol Use Disorders Identification Test (AUDIT-C) questionnaire was also recorded to assess alcohol consumption. For the entire length of the study, the investigators screened and eventually recorded hepatocellular carcinoma (HCC) occurrence by using ultrasonography assessments in accordance with CPG. The study primary endpoint was to assess the impact of the SARS-CoV-2 spread related lifestyle changes on body composition analysis and metabolic syndrome components worsening. Secondary endpoint was to assess the impact of the pandemic on HCC occurrence as well as shed light on the pandemic risk factors for HCC onset.