Table 2.

Baseline demographic and comorbid variables for patients for whom fistula were attempted as the first vascular access (n = 205)

Characteristic	Any Fistula(%; n = 205)	Radiocephalic Fistula(%; n = 113)	Brachiocephalic Fistula(%; n = 92)
Age (yr)
<65	51	50	48
≥65	49	50	52
Gender
male	71	76	65
female	29	24	35
Mean Charlson score	4.7	4.6	5.0
Diabetes	53	42	53
Surgical approach
1	65	53	79a
2	35	47	21
IHD	40	35	46
Hypertension	87	88	86
PVD	20	19	22
CHF	37	34	40
CVD	17	17	16

^aP < 0.0001, χ² test of two-sample proportions comparing number of patients with radiocephalic and brachiocephalic fistula attempted.