Table 1.

Baseline Clinical Characteristics According to the Presence of QCA-Based LSD

Without LSD (n=5790)With LSD (n=81)P Value
Demographic features
 Age, y63.3±11.063.7±10.70.741
 Men3935 (68.0%)53 (65.4%)0.628
Cardiovascular risk factors
 Hypertension3842 (66.6%)54 (67.5%)0.867
 Diabetes mellitus1961 (34.0%)23 (28.7%)0.326
 Dyslipidemia2958 (51.6%)39 (49.4%)0.696
 Current smoker1774 (30.9%)25 (30.9%)0.993
 Previous MI325 (5.6%)6 (7.5%)0.472
 Previous PCI705 (12.2%)7 (8.6%)0.331
 Previous CABG61 (1.1%)0 (0.0%)0.353
 Previous CHF99 (1.7%)0 (0.0%)0.239
 Previous CVA407 (7.1%)6 (7.5%)0.886
Clinical indication of PCI0.667
 Stable angina1849 (32.0%)28 (35.0%)
 Unstable angina2162 (37.5%)29 (36.3%)
 NSTEMI851 (14.7%)14 (17.5%)
 STEMI678 (11.7%)8 (10.0%)
 Silent ischemia232 (4.0%)1 (1.3%)
Angiographic disease extent0.002
 1 VD2747 (47.4%)24 (29.6%)
 2 VD1799 (31.1%)29 (35.8%)
 3 VD1244 (21.5%)28 (34.6%)
  • CABG indicates coronary artery bypass grafting; CHF, congestive heart failure; CVA, cerebrovascular event; LSD, longitudinal stent deformation; MI, myocardial infarction; NSTEMI, non–ST-segment–elevation myocardial infarction; PCI, percutaneous coronary intervention; QCA, quantitative coronary angiography; STEMI, ST-segment–elevation myocardial infarction; and VD, vessel disease.