Table 1.
Descriptive values [average ± standard deviation or n (%)] of preoperative variables according to the study group.
| Original Cohort (n=2,688) | |||
|---|---|---|---|
| Diabetes | P value | ||
| Variables | No (n=1,698) | Yes (n=990) | |
| Age | 61±10 | 63±9 | <0.001[1] |
| Male sex | 1,245 (73.3) | 639 (64.6) | <0.001[2] |
| Body mass index (kg/m2) | |||
| < 25 | 584 (35.5) | 283 (29.3) | <0.001[2] |
| 25-30 | 774 (47.1) | 427 (44.3) | |
| >30 | 285 (17.4) | 255 (26.4) | |
| Smoking history: | |||
| Smokers | 318 (18.7) | 104 (10.5) | <0.001[2] |
| Former smokers | 652 (38.4) | 416 (42.0) | <0.001[2] |
| Never smoked | 728 (42.9) | 470 (47.5) | <0.001[2] |
| Dyslipidemia | 697 (41.1) | 499 (50.4) | <0.001[2] |
| Chronic kidney disease | 64 (3.8) | 82 (8.3) | <0.001[2] |
| In dialysis (n=146) | 9 (14.1) | 23 (28.1) | 0.043[2] |
| Hypertension | 1,336 (78.7) | 883 (89.2) | <0.001[2] |
| Previous cerebrovascular accident | 67 (4.0) | 73 (7.4) | 0.001[2] |
| Chronic obstructive pulmonary disease | 128 (7.5) | 56 (5.7) | 0.062[2] |
| Peripheral arterial disease | 67 (4.0) | 59 (6.0) | 0.017[2] |
| Cerebrovascular disease | 27 (1.6) | 21 (2.1) | 0.316[2] |
| Serum creatinine | 1.3±0.6 | 1.4±0.9 | <0.001[1] |
| Prior CABG | 20 (1.2) | 18 (1.8) | 0.175[2] |
| Prior acute myocardial infarction | 801 (47.2) | 442 (44.7) | 0.205[2] |
| Congestive heart failure | 21 (1.2) | 33 (3.3) | <0.001[2] |
| Arrhythmia | 81 (4.8) | 54 (5.5) | 0.433[2] |
| Ejection fraction | 65.6±11.9 | 63.5±12.4 | 0.005[1] |
| EuroSCORE logistics | 2.2±2.0 | 2.6±2.4 | <0.001[3] |
[1]
Descriptive level of probability determined by the Student's t-test.
[2]
Descriptive level of probability determined by the chi-square test.
[3]
Descriptive level of probability determined by the nonparametric Mann-Whitney U test.