Prognostic Assessment in Patients with Indolent B-Cell Lymphomas

Table 1

Risk categories according to FLIPI index.

Risk group	Number of factors	Distribution of patients (%)	5-year OS, % (SE)	10-year OS, % (SE)	RR	95% CI
Low	0-1	36	90.6 (1.2)	70.7 (2.7)	1.0	NA
Intermediate	2	37	77.6 (1.6)	50.9 (2.7)	2.3	1.9–2.8
High	≥3	27	52.5 (2.3)	35.5 (2.8)	4.3	3.5–5.3