Table 4.
Summary of OR Values, P-values, Number of Studies (k), and Heterogeneity (I2) for 11 Outcomes and Across 3 Subsets of Included Studies: All studies, <100,000, and Single Institution (SI).
| OR | P-value | k (studies) | I2 (%) | |
|---|---|---|---|---|
| All/<100,000/SI | ||||
| Peri-Op events | ||||
| Re-admission | 1.27/1.42/1.77 | 0/0/0 | 21/19/8 | 47/27/13 |
| Non-routine discharge | 1.71/1.8/1.69 | 0/0/0.01 | 18/16/2 | 92/69/45 |
| Re-operation | 1.16/1.08/1.08 | .17/0.35/0.76 | 8/7/2 | 72/50/0 |
| Post-Op complications | ||||
| Mortality | 1.56/1.24/— | 0/0.08/— | 10/5/— | 82/26/- |
| All medical | 1.38/1.38/0.95 | 0/0/0.80 | 27/21/4 | 94/69/35 |
| Cardiovascular | 2.11/1.48/1.31 | .01/0.05/0.61 | 12/10/4 | 64/65/0 |
| DVT/PE | 1.44/2.2/0.39 | .01/0.02/0.07 | 12/11/2 | 60/66/0 |
| Genitourinary | 1.16/1.16/1.31 | .04/0.04/0.61 | 10/10/4 | 0/0/0 |
| Neurologic | 1.36/1.48/0.65 | .21/0.32/0.35 | 11/7/1 | 97/81/- |
| Respiratory | 1.38/1.33/0.41 | .04/0.25/0.20 | 11/8/2 | 77/70/0 |
| Wound | 1.47/1.38/1.35 | 0/0/0.34 | 16/15/4 | 0/0/0 |
OR values with significance (P < .05) are bolded.