ALB and congenital rubella syndrome: CRS (OR = 13.618; 95% CI = 1.499–123.709; P = 0.013) and baseline albumin (ALB) (OR = 0.854; 95% CI = 0.754–0.967; P = 0.020) were identified as the independent clinical factors associated with post-CAR-T hypoalbuminemia.