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Table 3 Optical coherence tomography characteristics

From: Relationships of coronary culprit-plaque characteristics with duration of diabetes mellitus in acute myocardial infarction: an intravascular optical coherence tomography study

Variables Non-DM (n = 184) Short-DM (n = 64) Long-DM (n = 31) P value
P for overall # PNon-DM vs. DM PNon-DM vs. Short-DM PShort-DM vs. Long-DM PNon-DM vs. Long-DM
Plaque morphology     0.017* 0.130 0.885 0.026 0.006*
 Plaque rupture 86 (46.7) 31 (48.4) 23 (74.2)      
 Intact fibrous cap 98 (53.3) 33 (51.6) 8 (25.8)      
Plaque type     0.007* 0.011* 0.189 0.100 0.003*
 Lipid-rich plaque 96 (52.2) 40 (62.5) 25 (80.6)      
 Fibrous plaque 88 (47.8) 24 (37.5) 6 (19.4)      
TCFA 36 (19.6) 20 (31.3) 13 (41.9) 0.012* 0.008* 0.059 0.361 0.010*
Calcification 85 (46.2) 40 (62.5) 19 (61.3) 0.043* 0.016* 0.029 1.000 0.126
Macrophage 95 (51.6) 38 (59.4) 19 (61.3) 0.407 0.206 0.311 1.000 0.338
Microvessels 32 (17.4) 12 (18.8) 5 (16.1) 0.970 1.000 0.850 0.787 1.000
Cholesterol crystal 10 (5.4) 8 (12.5) 4 (12.9) 0.080 0.058 0.089 1.000 0.124
Thrombus 178 (96.7) 63 (98.4) 31 (100) 0.725 0.429 0.681 1.000 0.597
Minimal FCT, μm 123 ± 84 125 ± 97 101 ± 73 0.387 0.065 0.993 0.456 0.416
Stenosis length, mm 18.0 ± 5.8 18.6 ± 7.1 20.9 ± 7.2 0.058 0.092 0.814 0.240 0.059
Maximal lipid arc, ° 300 ± 75 301 ± 71 333 ± 47 0.059 0.255 0.999 0.123 0.064
MLA, mm2 1.88 ± 0.75 1.89 ± 0.66 1.90 ± 0.64 0.975 0.830 0.989 0.997 0.981
  1. Continuous data are presented as mean ± standard deviation. Categorical variables are presented as number (%)
  2. DM diabetes mellites, FCT fibrous cap thickness, Long-DM patients with a long duration of diabetes, MLA minimal lumen area, Non-DM patients without diabetes, Short-DM patients with a short duration of diabetes, TCFA thin-cap fibroatheroma
  3. * P < 0.05
  4. #Pfor overall means statistical analysis among three groups