Table 1.

Patient characteristics (N = 87)

	n	%
Median age, 30 (16–59) years
Age > 50 years	4	5
Gender
Male		44
Female		43
Subtype of classical HL
Nodular sclerosis	73	84
Mixed cellularity	14	16
Stage
IA	23	26
IIA or IIEA	64	74
ESR ≥ 50 mm/h	12	14
Mediastinal involvement	65	75
Ann Arbor nodal sites > 3	16	18
Ann Arbor nodal sites > 2	39	45
Extranodal disease	3	3
Unfavorable risk factors
GHSG criteria
>2 nodal regionsa, ESR ≥ 50, E sites	42	48
EORTC criteria
>3 nodal regionsb, ESR ≥ 50, mixed cellularity, age > 50 years	33	38

^aDefined according to GHSG criteria.

^bDefined according to EORTC criteria.

ESR, erythrocyte sedimentation rate; GHSG, German Hodgkin Study Group; EORTC, European Organisation for Research and Treatment of Cancer.