ALB and obesity due to melanocortin 4 receptor deficiency: This procedure selected 30 nonzero coefficient variables with significant predictive value, encompassing demographic characteristics (Age, Gender, Race, Marital status), health behaviours (Smoking, Height, BMI, Obesity, Diabetes, Hypertension) and laboratory parameters (TC_mmol, LDL_mmol, Albumin, ALT, AST, Creatinine, SF, LYMNO, NENO, HGB, RDW, PLT, UA, HRR, NLR, PLR, SII, CRI, BRI) (Figure 2C).