Table 2.
Univariate and multivariate analysis of specific complication by presence or absence of computer assisted surgery
| Specific complication | With CAS, n (%) | Without CAS, n (%) | Univariate P | OR (95% CI) | Multivariate P |
|---|---|---|---|---|---|
| Any wound complication | 21 (5.9) | 677 (4.1) | 0.087 | ||
| Superficial site infection | 4 (1.1) | 124 (0.7) | 0.417# | ||
| Deep wound infection | 9 (2.5) | 134 (0.8) | 0.003# | 2.926 (1.305–6.563) | 0.009 |
| Organ space infection | 1 (0.3) | 39 (0.2) | 0.573# | ||
| Wound dehiscence | 10 (2.8) | 499 (3.0) | 0.828 | ||
| Pulmonary complication | 4 (1.1) | 269 (1.6) | 0.461 | ||
| Pneumonia | 3 (0.8) | 178 (1.1) | 1.000# | ||
| Unplanned intubation | 1 (0.3) | 134 (0.8) | 0.536# | ||
| Pulmonary embolism | 0 | 4 (0.02) | 1.000# | ||
| Acute kidney injury | 1 (0.3) | 17 (0.1) | 0.318# | ||
| Urinary tract infection | 3 (0.8) | 122 (0.7) | 0.748# | ||
| Stroke/CVA | 0 | 5 (0.03) | 1.000# | ||
| Seizure | 0 | 10 (0.1) | 1.000# | ||
| Nerve injury | 0 | 58 (0.3) | 0.636# | ||
| Cardiac arrest requiring CPR | 1 (0.3) | 23 (0.1) | 0.399# | ||
| Transfusion | 262 (73.6) | 10,938 (65.9) | 0.002 | 0.977 (0.731–1.306) | 0.874 |
| Blood stream infection | 0 | 5 (0.03) | 1.000# | ||
| Sepsis/septic shock | 8 (2.2) | 124 (0.7) | 0.007# | 3.192 (1.324–7.693) | 0.010 |
#Fisher’s exact test. Bold values indicate significance (P<0.05). CPR - Cardiopulmonary resuscitation; CVA - Cerebrovascular accident; CAS – Computer-assisted surgery; OR - Odds ratio; CI - Confidence interval