TNNI3 and hydrops fetalis: Subsequently, the patients with HF were stratified by these branch points: high risk (hs-cTnI <0.068 μg/L, percentage of lymphocytes <14.688%, and cholinesterase <187.916 U/L); low risk (hs-cTnI <0.068 μg/L, percentage of lymphocytes ≥14.688%, and urea <10.113 mmol/L); intermediate risk 1 (hs-cTnI ≥0.068 μg/L, neutrophil count ≥4.870×109/L, and AST <29.003 U/L); and intermediate risk 2 (hs-cTnI ≥0.068 μg/L, neutrophil count <4.870×109/L, and respiratory rate <18.003 breaths/min).