Table 2 Variations of patients and procedural data in relation to radial artery (RA) anatomy

	Normal anatomy	High bifurcations*	RA loops*	Tortuous RA*	Other anomalies*
Patients (n)	1321	108	35	30	39
Women (%)	28	29†	49‡	50‡	33†
Age (years), mean (SD)	63.0 (11.0)	65.5 (10.8)†	69.8 (10.4)§	72.2 (7.7)§	65.1 (11.8)†
Procedure duration (min), mean (SD)	41.3 (21.5)	45.2 (23.2)†	49.4 (17.1)†	41.0 (12.7)†	42.1 (19.2)†
Fluoroscopy time (min), mean (SD)	9.7 (8.0)	9.3 (6.5)†	10.0 (6.6)†	10.7 (6.5)†	9.6 (7.1)†
Failures (%)**	0.9	4.6†	37.1§	23.3¶	12.9%†

*p Value comparing radial anomaly with normal anatomy provided when relevant; †p = NS; ‡p<0.05; §p<0.001; ¶p<0.005.
**Percentage of failure to radial artery anatomical finding.