Table 5.
Summary of Demographics in Gender, Age, and BMI Matched Sub-Sample in Orthopedic Versus Bariatric Surgery Groups.
| Variable | Bariatric surgery | Orthopedic surgery | p a |
|---|---|---|---|
| N | 1057 | 1057 | — |
| Age, years | 52.1 ± 11.1 | 52.2 ± 11.1 | .849 |
| Male, % | 26.7 | 26.7 | — |
| BMI, kg/m2 | 41.3 ± 8.8 | 41.2 ± 8.8 | .863 |
| sMVAP | 0.52 ± 0.3 | 0.52 ± 0.3 | .877 |
| Previous OSA, % | 50.8 | 23.1 | <.0001 |
| Current hypertension, % | 63.0 | 63.1 | .964 |
| Extended length of stay, % | 8.2 | 9.6 | .256 |
| Any ICU-stay, % | 5.4 | 14.3 | <.0001 |
| Any respiratory complications, % | 0.5 | 0.4 | >.999 |
BMI = Body Mass Index; ICU = Intensive Care Unit; OSA = Obstructive Sleep Apnea; sMVAP = Symptomless Multi-Variable Apnea Prediction. Any ICU-stay defined as Any Stay in Intensive Care Unit. Any respiratory complications defined as diagnosis of Pulmonary Embolus, Acute Respiratory Distress Syndrome, and/or Aspiration Pneumonia. Extended Length of Stay defined as a length of stay >90th percentile for given procedure code. Significant results shown in bold.
a p-value from t test or Wilcoxon test (for continuous measures) and chi-squared or Fisher’s exact test (for categorical measures).