Patients where data on tissue NK cells were available were stratified based on NAS score (non-NAFL which represented no steatosis present, NAFL, NASH), liver fibrosis (fibrosis score 0–1 vs. 2–3), and insulin sensitivity status (HOMA-IR < 4.5 vs. >4.5). This evidence concerns the gene INS and metabolic dysfunction-associated steatohepatitis.