Table 3 Comparison of clinical variables by HbA1c in patients without known diabetes (n = 630)
HbA1c (%) | No DM < 5.7 (n = 207) | Increased risk for DM 5.7-6.4 (n = 356) | DM ≥ 6.5 (n = 67) | P value |
|---|---|---|---|---|
Age (years) | Mean 64.6 ± 12.3 | Mean 65.8 ± 10.6 | Mean 64.9 ± 9.9 | 0.592 |
Female | 38 (18.4%) | 89 (25.0%) | 21 (31.3%) | 0.055 |
Male | 169 (81.6%) | 267 (75.0%) | 46 (68.7%) | |
Race | Caucasian 195 (94.0%) | Caucasian 316 (88.8%) | Caucasian 60 (89.6%) | 0.970 |
Black 3 (1.5%) | Black 14 (3.9%) | Black 2 (3.0%) | ||
Asian 0 | Asian 7 (2.0%) | Asian 2 (3.0%) | ||
Other 9 (4.4%) | Other 19 (5.3%) | Other 1 (1.5%) | ||
Insurance Status | Medicare 101 (48.8%) | Medicare 194 (54.5%) | Medicare 31 (46.3%) | 0.479 |
Commercial 82 (39.6%) | Commercial 127 (35.7%) | Commercial 28 (41.8%) | ||
Medicaid 18 (8.7%) | Medicaid 29 (8.2%) | Medicaid 8 (11.9%) | ||
Other 6 (2.9%) | Other 6 (1.7%) | Other 0 | ||
Current Smoker | 92 (44.4%) | 160 (45.0%) | 28 (41.8%) | 0.893 |
Hypertension | 158 (76.3) | 277 (77.8%) | 51 (76.1%) | 0.902 |
Peripheral Vascular Disease | 21 (10.1%) | 29 (8.2%) | 8 (11.9%) | 0.523 |
Myocardial Infarction | 84 (40.6%) | 170 (47.8%) | 34 (50.8%) | 0.176 |
Congestive Heart Failure | 24 (11.6%) | 38 (10.7%) | 13 (19.4%) | 0.127 |
Dyslipidemia | 148 (71.5%) | 265 (74.4%) | 52 (77.6%) | 0.564 |
Minimally Invasive CABG* | 83 (40.1%) | 131 (36.0%) | 18 (26.9%) | 0.149 |
Median Sternotomy CABG | 124 (59.9%) | 225 (63.2%) | 49 (73.1%) | 0.149 |
Emergent Procedure | 3 (1.5%) | 9 (2.5%) | 3 (4.5%) | |
Urgent Procedure | 153 (73.9%) | 243 (68.3%) | 54 (80.6%) | |
Elective Procedure | 51 (24.6%) | 104 (29.2%) | 10 (15.0%) | 0.420 |
Number of Vessels Revascularized | Mean 3.1 ± 1.14 | Mean 3.1 ± 1.14 | Mean 3.6 ± 1.16 | 0.009 |
BMI (%) | Mean 27.7 ± 4.9 | Mean 28.5 ± 5.4 | Mean 29.5 ± 5.4 | 0.031 |