Table 2.

Myocardial perfusion imaging data in smokers compared with non-smokers

Myocardial perfusion	Non- smokers	Smokers	p-value
Abnormal perfusion (summed stress score ≥ 4) No (%)	63 (26.4)	24 (36.9)	0.09
Summed stress score	2.18 (4.32)	4.23 (7.63)	0.02
Summed rest score	0.59 (2.34)	1.42 (3.37)	<0.001
Summed difference score	1.59 (3.54)	2.82 (6.37)	0.34
Average rate-pressure product during adenosine	92.0 (23.9)	86.1 (22.9)	0.11
Maximal rate-pressure product during adenosine	114.8 (31.1)	105.2 (28.6)	0.04
Coronary vascular resistance during rest	1.56 (0.31)	1.32 (0.28)	<0.001
Coronary vascular resistance during hyperemia	0.59 (0.19)	0.62 (0.19)	0.50

Values presented are means (SD). P-values are obtained from mixed models for continuous variables that included a random intercept for pair.