Table 2.

 Proportion of patients with and without coronary heart disease who had ever or never smoked, and odds ratio of CAD

	CAD n = 158	No CAD n = 250	Odds ratio	95% CI	p Value
Male
Never smoked	38% (39/103)	64% (68/106)	1
Ever smoker	62% (64/103)	36% (38/106)	2.94	1.67 to 5.15	<0.001
Female
Never smoked	42% (23/55)	60% (87/144)	1
Ever smoker	58% (32/55)	40% (57/144)	2.12	1.13 to 3.99	0.02
Males and females
Never smoked	39% (62/158)	62% (155/250)	1
Ever smoked	61% (96/158)	38% (95/250)	2.53	1.67 to 3.83	<0.001