| Evaluated factor | Infection | p-value | |
| Yes | No | ||
| Gender |
|
|
|
| Male | 4 (23.5%) | 13 (76.5%) | 0.4562 |
| Female | 9 (14.1%) | 55 (85.9%) | |
| Age |
|
|
|
| Less than 60 years | 1 (5.3%) | 18 (94.7%) | 0.2182 |
| 60 to 70 years | 6 (15.8%) | 32 (84.2%) | |
| Above 70 years | 6 (25.0%) | 18 (75.0%) | |
| Principal diagnosis |
|
|
|
| Left Knee Arthrosis | 7 (17.9%) | 32 (82.1%) | 0.766¹ |
| Right Knee Arthrosis | 6 (14.3%) | 36 (85.7%) | |
| Clinical diseases |
|
|
|
| Yes | 12 (17.9%) | 55 (82.1%) | 0.4482 |
| No | 1 (7.1%) | 13 (92.9%) | |
| Length of hospital stay |
|
|
|
| 4 days | 2 (12.5%) | 14 (87.5%) | 0.4702 |
| 5 days | 2 (11.1%) | 16 (88.9%) | |
| 6 or more | 5 (27.8%) | 13 (72.2%) | |
| Type of surgery |
|
|
|
| TKA―left knee | 7 (17.9%) | 32 (82.1%) | 0.766¹ |
| TKA―right knee | 6 (14.3%) | 36 (85.7%) | |
| Time of surgery (in hours) |
|
|
|
| Up to 2 hours | 3 (20.0%) | 12 (80.0%) | 0.8742 |
| Between 2 and 3 hours | 9 (15.0%) | 51 (85.0%) | |
| Above 3 hours | 1 (16.7%) | 5 (83.3%) | |
| PATB |
|
|
|
| Yes | 12 (16.7%) | 60 (83.3%) | 1.0002 |
| No | 1 (11.1%) | 8 (88.9%) | |
| ASAPS |
|
|
|
| I | 1 (7.1%) | 13 (92.9%) | 0.6732 |
| II | 12 (18.8%) | 52 (81.3%) | |
| III | 0 (0.0%) | 3 (100.0%) | |