Table 3

Quantitative angiographic analyses of current smokers, ex-smokers, and non-smokers

	Non-smokers	Ex-smokers	Current smokers	Significance level
Reference diameter (mm)
Before angioplasty	2.60 (0.54)	2.65 (0.53)	2.64 (0.54)	0.116
After angioplasty	2.65 (0.52)	2.69 (0.50)	2.67 (0.51)	0.129
At follow up	2.67 (0.56)	2.71 (0.56)	2.71 (0.54)	0.200
Minimum lumen diameter (mm)
Before angioplasty	0.96 (0.40)	1.00 (0.40)	1.02 (0.38)^3-150	0.046
After angioplasty	1.75 (0.37)	1.78 (0.36)	1.76 (0.34)	0.144
At follow up	1.40 (0.62)	1.44 (0.57)	1.46 (0.59)	0.096
Differences in minimum lumen diameter
Absolute gain (mm)	0.78 (0.43)	0.78 (0.41)	0.74 (0.40)	0.128
Relative gain	0.31 (0.16)	0.30 (0.16)	0.29 (0.15)	0.074
Absolute loss (mm)	0.35 (0.55)	0.33 (0.52)	0.29 (0.54)	0.172
Relative loss	0.14 (0.22)	0.13 (0.21)	0.12 (0.22)	0.085
Absolute net gain	0.43 (0.61)	0.45 (0.56)	0.45 (0.61)	0.870
Net gain index	0.16 (0.25)	0.17 (0.22)	0.16 (0.24)	0.282
Loss index	0.41 (2.37)	0.60 (5.01)	0.49 (1.34)	0.545
Percentage stenosis
Before angioplasty	62.4 (14.4)	61.8 (14.3)	60.7 (14.0)	0.142
After angioplasty	33.6 (8.4)	33.6 (8.3)	33.7 (7.8)	0.919
At follow up	47.3 (20.3)	46.2 (18.9)	45.7 (19.1)	0.278
Diameter stenosis at follow up > 50%	37.1%	35.3%	35.3%	0.687