Table 2.

Angiographic characteristics of index coronary lesions. Data are presented as mean ± SD, or number of subjects (%). Complete data were available for all lesions.

	Females (n = 3446)	Males (n = 6547)	All patients (n = 9993)	P value (females versus males)
Culprit vessel:				< 0.0001
Left anterior descending	1659 (48.1%)	2999 (45.8%)	4658 (46.6%)
Circumflex	784 (22.8%)	1843 (28.2%)	2627 (26.3%)
Right coronary	971 (28.2%)	1636 (25.0%)	2607 (26.1%)
Left main coronary	32 (0.9%)	69 (1.1%)	101 (1.0%)
Calcification severity:				0.38
None	1902 (55.2%)	3657 (55.9%)	5559 (55.6%)
Mild	1060 (30.8%)	1934 (29.6%)	2994 (30.0%)
Moderate	386 (11.2%)	737 (11.3%)	1123 (11.2%)
Severe	98 (2.8%)	219 (3.3%)	317 (3.2%)
Mod-severe calcification	484 (14.0%)	956 (14.6%)	1440 (14.4%)
Stenosis severity (%)	84.2 ± 10.5	85.4 ± 10.7	85.0 ± 10.7	< 0.0001