Table I.

Angiographic findings in cases and controls

Angiography findings		Cases	Control	Total	P-value
Single vessel disease		36	0	36	< 0.001
Double vessel disease		23	0	23
Triple vessel disease		41	0	41
Normal coronary vessels		0	100	100
Total		100	100	200
Plaque:					< 0.001
	Yes	29	0	29
	No	71	100	171
	Total	100	100	200
Calcification:					< 0.001
	Yes	24	0	24
	No	76	100	176
	Total	100	100	200