| Co-morbidity | Mean healing time (weeks) | Standard Deviation |
| Nil | 16.02 | 3.84 |
| Diabetes mellitus | 29.00 | 15.56 |
| Hypertension | 17.50 | 6.36 |
| Osteoporosis | 21.50 | 5.42 |
| Villi-nodular Synovitis Of the elbow | 20.00 |
|
| HIV | 18.00 |
|
| Psychiatric patient | 16.00 |
|
| Total | 17.38 | 5.30 |
|
|
| p = 0.001 |