Table 1.
Clinical characteristics and imaging findings by diabetic status before and after propensity score matching
| Before matching | After matching | |||||
|---|---|---|---|---|---|---|
| Diabetes (n = 452) |
No diabetes (n = 1390) |
P value | Diabetes (n = 451) |
No diabetes (n = 451) |
P value | |
| Age (years) | 59 ± 12 | 58 ± 13 | .08 | 59 ± 12 | 60 ± 12 | .26 |
| Male gender, n (%) | 218 (48) | 582 (42) | < .05 | 218 (48) | 230 (51) | .42 |
| Body mass index (kg/m2) | 32 ± 7 | 30 ± 7 | < .001 | 32 ± 7 | 32 ± 7 | .62 |
| Hypertension, n (%) | 370 (82) | 893 (64) | < .001 | 370 (82) | 376 (83) | .60 |
| Dyslipidemia, n (%) | 353 (78) | 765 (55) | < .001 | 353 (78) | 354 (78) | .94 |
| Smoking history, n (%) | 82 (18) | 277 (20) | .41 | 82 (18) | 94 (21) | .31 |
| Family history of CAD, n (%) | 190 (42) | 683 (49) | < .05 | 190 (42) | 191 (42) | .95 |
| Baseline MBF (ml/g/min) | 1.06 ± .34 | 1.09 ± 0.37 | .18 | 1.06 ± 0.34 | 1.07 ± 0.38 | .64 |
| Hyperemic MBF (ml/g/min) | 2.52 ± 0.80 | 2.80 ± 0.79 | < .001 | 2.52 ± 0.80 | 2.76 ± 0.80 | < .001 |
| MFR | 2.46 ± 0.70 | 2.68 ± 0.71 | < .001 | 2.46 ± 0.70 | 2.69 ± 0.71 | < .001 |
| MFR < 2, n (%) | 124 (27) | 236 (17) | < .001 | 124 (27) | 70 (17) | < .001 |
| CAC categories | ||||||
| < 400, n (%) | 388 (86) | 1269 (91) | < .001 | 387 (86) | 397 (88) | .32 |
| ≥ 400, n (%) | 64 (14) | 121 (9) | < .001 | 64 (14) | 54 (12) | .32 |
Values are expressed as mean value ± standard deviation or as number (percentage) of subjects
CAD, coronary artery disease; MBF, myocardial blood flow; MFR, myocardial flow reserve; CAC, coronary artery calcium