Table 2.
Preoperative characteristics by severity of T2D
| T2D severity (medication usage; n = 355) | ||||
|---|---|---|---|---|
| OAD | insulin | OAD + insulin | p value | |
| N | 47 | 39 | 269 | − |
| Age, years | 51.7±9.3 | 52.1±9.0 | 51.4±9.1 | 0.878a |
| Height | 1.66±0.09 | 1.69±0.10 | 1.66±0.09 | 0.161a |
| Weight | 95.1±14.8 | 96.1±14.4 | 93.8±14.6 | 0.615a |
| BMI, kg/m2 | 34.6±4.6 | 33.7±5.4 | 33.9±4.5 | 0.597a |
| Excess BMI | 9.6±4.6 | 8.7±5.4 | 8.9±4.5 | 0.597a |
| Mean years diagnosed T2D | 9.7±4.8 | 11.9±6.5 | 12.4±6.1 | <0.05a |
| A1C | 8.5±0.3 | 10.1±1.5 | 10.0±1.4 | <0.001a |
| Fasting C-peptide | 2.98±1.0 | 2.47±0.9 | 2.78±1.0 | 0.064a |
| Postprandial C-peptide | 5.21±1.6 | 3.87±1.3 | 4.27±1.6 | <0.001a |
| C-peptide ratio | 1.79±0.4 | 1.64±0.4 | 1.58±0.4 | <0.005a |
| Gender/female | 25 (53.2) | 27 (69.2) | 154 (57.2) | 0.283b |
| Smoker/yes | 6 (12.8) | 13 (33.3) | 63 (23.4) | 0.242b |
| Hypertension | 18 (38.3) | 15 (38.5) | 94 (34.9) | 0.846b |
| Hyperlipidemia | 6 (12.8) | 4 (10.3) | 44 (16.4) | 0.526b |
| Hypertriglyceridemia | 22 (46.8) | 14 (35.9) | 116 (43.1) | 0.583b |
| OAD medication use | 47 (100.0) | 0 (0.0) | 269 (100.0) | <0.001b |
| Insulin use | 0 (0.0) | 39 (100.0) | 269 (100.0) | <0.001b |
Values are mean ± SD or n (%). BMI, body mass index; T2D, type 2 diabetes mellitus; A1C, hemoglobin A1C; OAD, oral antidiabetic. ap value based on ANOVA results. bp value based on χ2 results.