Table 2.
Descriptive Statistics, Categorical Variables
| Category | Number of patients | % |
|---|---|---|
| Procedure | ||
| Gastric bypass | 163 | 82.3 |
| Sleeve gastrectomy | 35 | 17.7 |
| Race | ||
| White | 190 | 96.5 |
| Other | 7 | 3.6 |
| Sex | ||
| Male | 35 | 17.7 |
| Female | 163 | 82.3 |
| Ethnicity | ||
| Non-Hispanic | 193 | 99 |
| Hispanic | 2 | 1 |
| Diabetes | ||
| No | 126 | 64 |
| Yes, no insulin | 35 | 17.8 |
| Yes, with insulin | 36 | 18.3 |
| Smoker | 13 | 6.6 |
| COPD | 3 | 1.5 |
| Oxygen dependent | 7 | 3.5 |
| Sleep apnea | 83 | 42 |
| Mobility device | 7 | 3.5 |
| GERD | 976 | 48.5 |
| Previous surgery | 7 | 3.5 |
| Prior cardiac surgery | 8 | 4 |
| Prior percutaneous coronary intervention | 3 | 1.5 |
| Prior myocardial infarct | 7 | 3.5 |
| Hyperlipidemia | 74 | 37.4 |
| Renal insufficiency | 2 | 1 |
| Dialysis | 1 | 0.5 |
| Steroid use | 4 | 2 |
| History of DVT | 4 | 2 |
| History of pulmonary embolism | 1 | 0.5 |
| Anticoagulation | 7 | 3.5 |
| HTN requiring medications | 127 | 64.1 |
| Number of HTN meds | ||
| 0 | 71 | 35.9 |
| 1 | 43 | 21.7 |
| 2 | 46 | 23.2 |
| 3 | 28 | 14.1 |
| 4 | 4 | 2 |
| 5 | 4 | 2 |
| 6 | 1 | 0.5 |
| 7 | 1 | 0.5 |
| ASA class | ||
| 2 | 33 | 16.7 |
| 3 | 158 | 79.8 |
| 4 | 7 | 3.5 |
ASA, American Society of Anesthesiologists; COPD, chronic obstructive pulmonary disease; DVT, deep vein thrombosis; GERD, gastroesophageal reflux disease; HTN, hypertension requiring at least one medication.