Table 3.
Impact of unplanned TKA readmissions on hospital finances for initial visits
| Reimbursement (USD) | Total cost (USD) | Profit (USD) | Variable cost (USD) | Contribution margin (USD) | |
|---|---|---|---|---|---|
| Initial TKA visit for patients who had subsequent unplanned readmission(s) (Interquartile range) | 24,149 (16,257; 28,283) Range, 11,238 to 65,834 |
17,728 (14,328; 22,831) Range, 11,340 to 125,528 |
2979 (−465; 8,470) Range, −82,332 to 41,444 |
11,019 (8892; 14,588) Range, 7259 to 68,428 |
9380 (6024; 15,091) Range, −25,233 to 49,387 |
| Initial TKA visit for patients who did not have subsequent unplanned readmission (Interquartile range) | 24,149 (16,471; 27,153) Range, 3718 to 122,503 |
16,018 (13,893; 20,562) Range, 5740 to 132,957 |
5300 (1420; 11,141) Range, 52,057 to 85,415 |
964 (8635; 13,195) Range, 2998 to 81,558 |
11,652 (7319; 16,795) Range, −21,361 to 98,657 |
| p Value | 0.973 | < 0.001 | < 0.001 | < 0.001 | 0.008 |
| Linear regression coefficient* (95% CI) | 27 (−1514 to 1568) | 3250 (2124 to 4377) | −3223 (−4731 to −1715) | 1,944 (1238 to 2650) | −1917 (−3327 to −507) |
* Linear regression coefficient is a measure of effect size. CI = Confidence interval.