Research Article
Impact of Resident Involvement on 30-Day Postoperative Outcomes in Orthopedic Shoulder Surgery
Table 1
Demographic data and comorbidities in 5,648 patients treated with orthopedic shoulder surgery in 2010–2012, categorized by resident presence.
| Variable | Resident present | value | No (3455 patients) | Yes (2193 patients) | Value | % | Value | % |
| Demographic | Age in yrs, mean ± SD | 59.9 ± 15.6 | | 59.4 ± 16.9 | | 0.229 | BMI in kg/m2, mean ± SD | 29.6 ± 8.1 | | 28.8 ± 8.2 | | 0.958 | Sex | 0.444 | Male | 1770 | 51.3 | 1042 | 47.6 | | Female | 1680 | 48.7 | 1146 | 52.4 | | Race | <0.001 | Asian | 24 | 0.7 | 16 | 0.7 | | Black | 115 | 3.3 | 106 | 4.8 | | Native American or Alaskan | 25 | 0.7 | 9 | 0.4 | | Native Hawaiian or Pacific Islander | 6 | 0.2 | 0 | 0.0 | | White | 2851 | 82.5 | 1673 | 76.3 | | Other | 434 | 12.6 | 389 | 17.7 | | Ethnicity | <0.001 | Hispanic | 224 | 6.5 | 52 | 2.4 | | Non-Hispanic | 3231 | 93.5 | 2141 | 97.6 | | Comorbidities | >10% loss body weight in <6 mo | 5 | 0.1 | 9 | 0.4 | 0.050 | Ascites | 0 | 0.0 | 2 | 0.1 | 0.076 | Bleeding disorders | 88 | 2.5 | 76 | 3.5 | 0.045 | CHF | 3 | 0.1 | 8 | 0.4 | 0.021 | COPD | 159 | 4.6 | 89 | 4.1 | 0.331 | Current smoker | 601 | 17.4 | 396 | 18.1 | 0.525 | Diabetes | 512 | 14.8 | 310 | 14.1 | 0.478 | Dialysis | 14 | 0.4 | 11 | 0.5 | 0.595 | Disseminated cancer | 13 | 0.4 | 36 | 1.6 | <0.001 | Dyspnea | 250 | 7.2 | 128 | 5.8 | 0.040 | EtOH >2 drinks/day | 126 | 3.6 | 70 | 3.2 | 0.363 | Functional status (partially dependent) | 96 | 2.8 | 107 | 4.9 | <0.001 | Hypertension | 1759 | 50.9 | 1101 | 50.2 | 0.605 | Rest pain/Gangrene | 3 | 0.1 | 2 | 0.1 | 0.957 | Steroid use | 86 | 2.5 | 94 | 4.3 | <0.001 |
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BMI = body mass index; CHF = congestive heart failure; COPD = chronic obstructive pulmonary disease. Denotes significant difference between cohorts ( ). |