Table 3.
Additional risk on readmission with every increasing CCI score (%) per orthopaedic subspecialty*
| Orthopaedic subspecialty | Additional risk | 95% CI | p value | |
|---|---|---|---|---|
| Lower | Upper | |||
| Arthroplasty | 0.45 | 0.0023 | 0.0066 | < 0.001 |
| Foot and ankle | −0.13 | −0.006 | 0.0034 | 0.587 |
| Hand and upper extremity | −0.27 | −0.006 | 0.0004 | 0.092 |
| Shoulder | −0.27 | −0.007 | 0.0020 | 0.2630 |
| Spine | 0.90 | 0.0048 | 0.0132 | < 0.001 |
| Sports | −0.18 | −0.006 | 0.0020 | 0.3590 |
| Pediatrics | −0.82 | −0.028 | 0.0118 | 0.421 |
| Trauma | 0.63 | 0.0030 | 0.0096 | < 0.001 |
| Oncology | −0.26 | −0.01 | 0.0009 | 0.145 |
| R-square | 0.100 | |||
* N = 30,129; CCI = Charlson Comorbidity Index.