Table 2.
Risk Factors for Undergoing Subsequent Surgery Following an Osteochondral Allograft.
| Risk Factor | N, Total | N, Subsequent (%) | aOR (95% CI) | P Value |
|---|---|---|---|---|
| Age, years, mean (SD) | ||||
| 20-29 | 1,598 | 15 (0.94) | 0.49 (0.24-0.99) | 0.046 |
| 30-39 | 1,991 | 29 (1.46) | 0.74 (0.41-1.37) | 0.330 |
| 40-49 | 1,849 | 46 (2.49) | 1.25 (0.74-2.19) | 0.426 |
| 50-59 | 953 | 20 (2.10) | Reference | N/A |
| Surgical Approach | ||||
| Open | 3,950 | 72 (1.82) | 2.00 (0.59-5.10) | 0.197 |
| Arthroscopic | 2,589 | 42 (1.62) | Reference | N/A |
| Sex | ||||
| Male | 3,212 | 54 (1.68) | 0.99 (0.67-1.46) | 0.949 |
| Female | 3,174 | 56 (1.76) | Reference | N/A |
| BMI | ||||
| ≥25 | 778 | 13 (1.67) | 0.65 (0.26-1.26) | 0.215 |
| ≥40 | 288 | <11 (N/A) | 1.73 (0.60-4.79) | 0.293 |
| ECI score, mean (SD) | ||||
| 0 | 1,948 | 30 (1.54) | 0.77 (0.40-1.51) | 0.437 |
| 1-3 | 3,261 | 52 (1.59) | 0.73 (0.43-1.28) | 0.262 |
| >3 | 1,182 | 28 (2.37) | Reference | N/A |
| Bony Realignment | ||||
| Yes | 477 | <11 (N/A) | 0.24 (0.04-0.76) | 0.046 |
| No | 5,914 | N/A | Reference | N/A |
| Comorbidities | ||||
| Tobacco use | 907 | 16 (1.76) | 0.82 (0.45-1.42) | 0.508 |
| Diabetes | 410 | <11 (N/A) | 1.05 (0.47-2.08) | 0.927 |
| Lung disease | 1,123 | 15 (1.34) | 1.71 (0.91-3.01) | 0.076 |
| Hypertension | 505 | 26 (5.25) | 1.10 (0.63-1.85) | 0.735 |
| Hypovitaminosis D | 456 | <11 (N/A) | 1.00 (0.46-1.42) | 0.995 |
aOR = adjusted odds ratio; CI = confidence interval; BMI = body mass index; ECI = Elixhauser Comorbidity Index.
Bold font indicates statistical significance (P value of <0.05).