Table 3.

Follicular lymphoma-specific international prognostic index (FLIPI) risk factors

PARAMETER	DEFINITION OF RISK FACTORS
	FLIPI I	FLIPI II
NODAL SITES	>4 lymph node regions	Long diameter of largest lymph node >6 cm
AGE	>60 years	>60 years
SERUM MARKER	Elevated LDH	Elevated β2 microglobulin
STAGE	Advanced (III-IV according to Ann Arbor classification)	Bone marrow involvement
HEMOGLOBIN	<12 g/dl	<12 g/dl

0-1 risk factors, low risk; 2 risk factors, intermediate risk; 3-5 risk factors, high risk. LDH, lactate dehydrogenase.