Table 2.

Disease Characteristics

Variable	All Survivors (N = 741)	Total Percent	< 65 years of age (n = 419)	Percent of Total	≥ 65 years of age (n = 322)	Percent of Total	p value
NHL Histology
Indolent	365	49	202	48	163	51	.244
Aggressive	335	45	200	48	135	42
Missing	41	6	17	4	24	8
Stage at Diagnosis
I	204	28	108	26	96	30	.249
II	137	18	78	19	59	18
III	125	17	79	19	46	14
IV	178	24	108	26	70	22
Missing	97	13	46	11	51	16
Currently in Remission
Yes	579	78	321	77	258	80	.415
No	97	13	60	14	37	12
Don’t Know	63	9	38	8	25	8
Missing	2	<1	5	1	2	<1
Currently receiving treatment
Yes	105	1	69	17	36	11	.041
No	636	86	350	84	286	89
Treatments Received
Chemotherapy	592	80	340	81	252	78	.331
Radiation therapy	358	48	214	51	144	45	.086
Surgery	223	30	133	32	90	28	.245
Biologic therapy	223	30	150	36	73	23	.000
Bone marrow/stem cell transplantation	116	16	95	23	21	7	.000
Other therapy	87	12	54	13	33	10	.269
Missing surgery variable	18	2	11	3	7	2
Number of Comorbidities
0	84	11	71	17	13	4	.001
1	138	19	95	23	43	14
2	134	18	78	19	56	17
≥ 3	385	52	175	41	210	65
Total Comorbidity Score(range 0–30)	5.6 (4.8)		4.6 (4.5)		6.8 (5.1)
Mean age at time of study (range 21–90)	62.3 (13.4)		53.1 (9.3)		74.4 (6.4)
Years since diagnosis (range 2–44)	10.2 (7.1)		9.6 (6.3)		11.2 (7.9)

Note. Numbers in parenthesis are standard deviations.