Table 2.

Characteristics of study patients who received fluorouracil chemotherapy

Category	Leucovorin IV	Leucovorin bolus	Total
No. of observations	53	18	71
Age (mean ± SD), yr	68 ± 10	53 ± 5	63 ± 11
Sex, n (%)
Male	29 (55)	1 (6)	30 (42)
Female	24 (45)	17 (94)	41 (58)
Insurance, n (%)
Private insurance or HMO	9 (17)	18 (100)	27 (38)
Medicare	43 (81)	0 (0)	43 (61)
No insurance	1 (2)	0 (0)	1 (1)
Type of cancer, n (%)
Colon and rectum	44 (83)	17 (94)	61 (86)
Gastric	7 (13)	0 (0)	7 (10)
Others	2 (4)	1 (6)	3 (4)
Race, n (%)
Caucasian	26 (49)	16 (89)	42 (59)
African American	8 (15)	0 (0)	8 (11)
Latino American	8 (15)	2 (11)	10 (14)
Others	11 (21)	0 (0)	11 (15)

HMO, health maintenance organization.