Table 3 Chi-square test comparison of outcome measures between the two study groups.
Comparison of outcomes | Teaching hospitals (n = 616) | Non-teaching hospitals (n = 652) | Chi-square | p value | |
|---|---|---|---|---|---|
n. (%) | n. (%) | ||||
Postop. ICU admission | 104 (16.9%) | 17 (2.6%) | 71.62 | < 0.01* | |
VTE events | 18 (2.9%) | 11 (1.7%) | 1.90 | 0.16 | |
Need for blood transfusion | 248 (40.3%) | 79 (12.1%) | 19.57 | < 0.01* | |
One-month readmission | 65 (10.6%) | 68 (10.4%) | 0.01 | 0.89 | |
Need for revision | 27 (4.4%) | 11 (1.7%) | 7.35 | 0.007* | |
Mortality | In-hospital | 15 (2.4%) | 14 (2.1%) | 0.11 | 0.72 |
6-months | 19 (3.1%) | 23 (3.5%) | 0.19 | 0.65 | |
1-year | 23 (3.7%) | 24(3.7%) | 0.002 | 0.96 | |
