Risk group Criteria
Very low-risk
PRETEXT I Resectable at diagnosis and VPEFRM(-) PRETEXT II Resectable at diagnosis, VPEFRM(-), <8 years and AFP >100 ng/ml
Low-risk
PRETEXT I Unresectable at diagnosis and VPEFRM(-) PRETEXT II Unresectable at diagnosis, VPEFRM(-), <8 years and AFP >100 ng/ml PRETEXT III VPEFRM(-), <8 years and AFP >1000 ng/ml
Intermediate-risk
PRETEXT I VPEFR(+), M(-) and <8 years PRETEXT II <8 years, AFP >100 ng/ml, VPEFR(+) and M(-) PRETEXT III <8 years, AFP 101-1000 ng/ml or AFP >1000 ng/ml and VPEFR (+), M(-) PRETEXT IV M(-), <3 years and AFP >100 ng/ml
High-risk
M(+) PRETEXT I VPEFR(+), and ≥8 years PRETEXT II <8 years, and AFP ≤100 ng/ml ≥8 years PRETEXT III <8 years and AFP ≤100 ng/ml ≥8 years PRETEXT IV <3 years and AFP ≤100 ng/ml ≥3 years