Table 3.
Optical coherence tomography characteristics
| 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 |
Continuous data are presented as mean ± standard deviation. Categorical variables are presented as number (%)
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
* P < 0.05
#Pfor overall means statistical analysis among three groups