Table 2. Mean number of carotid atherosclerotic plaques by sex and smoking status.

Sex	Smoking	N	Plaques Average†	Plaques>0
				n¥	%
Females	Nonsmokers	407	0.51	107	26.3
	Smokers	115	0.56	30	26.1
	All	522	0.52	137	26.2
Males	Nonsmokers	281	0.74	93	33.1
	Smokers	133	1.42	62	46.6
	All	414	0.96	155	37.4
Both	Nonsmokers	688	0.61	200	29.1
	Smokers	248	1.02	92	37.1
	All	936	0.72	292	31.2

^†average number of plaques per individual;

^¥number of individuals with at least 1 plaque.