Table 4.

Clinical and biochemical characteristics of CABG patients according to their smoking behaviour

	CABG current/past smokers	CABG never smokers	p value
Number of subjects (n)	72	82
Male/female	66/6	56/26	<0.001
Mean age (years)	71 ± 9	82 ± 7	<0.001
BMI	28.00 ± 3.68	28.82 ± 3.73	ns
Total cholesterol (mg/dl)	167.42 ± 46.86	172.31 ± 44.98	ns
HDL-cholesterol (mg/dl)	45.59 ± 11.00	48.02 ± 9.62	ns
LDL-cholesterol (mg/dl)	93.35 ± 35.48	94.78 ± 39.04	ns
Triglycerides (mg/dl)	166.33 ± 76.45	144.99 ± 68.41	ns
Glucose (mg/dl)	125.80 ± 45.49	121.61 ± 41.22	ns
MI	34 (47.2)	34 (41.5)	ns
Hypertension	46 (63.9)	60 (73.2)	ns
Diabetes	27 (37.5)	36 (43.9)	ns

Categorical variables are presented as n (%) and were analysed between groups using the chi-square test; all continuous variables are expressed as mean ± standard deviation and were compared using the unpaired Student's t test.

Abbreviations: BMI, body mass index; HDL, high-density lipoprotein; LDL, low-density lipoprotein; MI, myocardial infarction; NS, not significant.