Table 1. Risk group allocation applied... | American Society of Hematology

Table 1.

Risk group allocation applied by the GHSG

Risk group	Stage
Early stages	Stage I/II with no risk factors
Intermediate stages	Stage I/IIA with ≥1 risk factor(s)
Intermediate stages	Stage IIB with risk factors C/D, but not A/B
Advanced stages	Stage IIB with risk factors A/B
Advanced stages	Stage III/IV
Risk factors	(A) Large mediastinal mass*
	(B) Extranodal disease
	(C) Elevated ESR†
	(D) ≥3 nodal areas

Risk group	Stage
Early stages	Stage I/II with no risk factors
Intermediate stages	Stage I/IIA with ≥1 risk factor(s)
Intermediate stages	Stage IIB with risk factors C/D, but not A/B
Advanced stages	Stage IIB with risk factors A/B
Advanced stages	Stage III/IV
Risk factors	(A) Large mediastinal mass*
	(B) Extranodal disease
	(C) Elevated ESR†
	(D) ≥3 nodal areas

Large mediastinal mass: more than one-third of the maximum horizontal chest diameter.

Elevated erythrocyte sedimentation rate (ESR): >50 mm/h without B symptoms, >30 mm/h with B symptoms.