Table 2.

Patient Demographics and Clinical Characteristics: All Rigorously Staged Patients With Stage I Disease

Demographic or Characteristic	Staged Without PET Scan		Staged With PET Scan		P
	No. of Patients	%	No. of Patients	%
Age, years					.32*
≤ 60	34	44	65	51
> 60	44	56	63	49
Hemoglobin, g/dL					.95*
< 12	10	14	17	14
≥ 12	60	86	105	86
Serum LDH					.73*
Normal	48	91	87	89
> ULN	5	9	11	11
FLIPI					.98*
Good	49	86	91	86
Intermediate/poor	8	14	15	14
Histologic diagnosis					.10*
Grade 1 or 2	56	86	88	76
Grade 3	9	14	28	24
B symptoms					.44*
No	71	91	112	88
Yes	7	9	16	12
Practice setting					.03*
Academic	23	29	21	16
Community	55	71	107	84
Treatment					.47†
Watchful waiting	16	21	19	15
R-mono	10	13	15	12
R-chemo	25	32	32	25
XRT	18	23	38	30
CM:XRT	8	10	18	14
Other	1	1	6	5

Abbreviations: CM:XRT, combined modality with radiation therapy; FLIPI, Follicular Lymphoma Prognostic Index; LDH, lactate dehydrogenase; PET, positron emission tomography; R-chemo, rituximab/chemotherapy; R-mono, rituximab monotherapy; ULN, upper limit of normal; XRT, radiation therapy.

^*Calculated by using the χ² test.

^†Calculated by using Fisher's exact test.