Table 1.
The best parsimonious models for prediction of SSIs
| Model 1. The best parsimonious model of hospitalization diagnostic (ICD 10) codes | ||
| Effect | *AOR, 95% CI | Risk point |
| T81- Operative complication (infection, hemorrhage, etc.) | 6.40 (5.08–8.01) | 2 |
| K65 - Peritonitis | 5.87 (3.88–7.88) | 1 |
| B96 - Other bacterial agents causing infections | 2.56 (1.84–3.47) | 1 |
| K83 - Biliary duct infection, obstruction, perforation | 6.32 (4.42–8.01) | 3 |
| Y83 - Surgical operation/procedures as the cause of abnormal reaction of the patient/ or later complication | 2.46 (1.97–3.07) | 1 |
| B95 – Streptococcus/ staphylococcus as the cause of diseases | 3.25 (2.17–4.87) | 1 |
| Model 2. The best parsimonious model of physician diagnostic (ICD 9) codes | ||
| Effect | AOR, 95% CI | Risk point |
| 686 - Pyoderma, pyogenic granuloma, other local infections | 8.13 (6.50–9.20) | 3 |
| 682- Cellulitis, abscess | 4.70 (3.57–6.10) | 2 |
| 998 - Other complications of procedures | 5.68 (4.77–6.78) | 2 |
| 556 - Ulcerative colitis | 8.60 (6.31–9.18) | 3 |
| 685 - Pilonidal cyst with fistula, abscess | 2.69 (1.52–3.76) | 2 |
| 560 - Intestinal obstruction without mention of hernia | 2.97 (2.19–4.01) | 2 |
| 154 - Malignant neoplasm of rectum, rectosigmoid junction | 4.37 (3.29–5.17) | 2 |
| 599 - Other disorders of urethra and urinary tract | 2.04 (1.55–2.62) | 1 |
| 153 - Malignant neoplasm of colon | 2.71 (2.02–3.22) | 1 |
| Model 3. The best parsimonious model of physician procedure claims | ||
| Effect | AOR, 95% CI | Risk point |
| Z59 - Digestive system surgical procedure: colon/biliary tract | 7.38 (6.08–9.09) | 4 |
| C46 - Infectious disease: hospital consult/assessment | 5.77 (4.66–7.43) | 3 |
| Z10 - Skin/subcutaneous tissue: incision of abscess or hematoma | 7.88 (6.04–8.67) | 3 |
| C03 - General surgery: hospital consult/assessment | 3.45 (2.86–4.19) | 2 |
| H15 - Family practice: assessment on weekend | 2.33 (1.80–3.01) | 2 |
| S16 - Digestive system surgical procedures: intestine | 1.98 (1.48–2.52) | 1 |
| C20 - Obstetrics and gynecology assessment/consult | 2.25 (1.66–3.05) | 2 |
| Z08 - Debridement of wound(s) and/or ulcer(s) | 4.01 (2.83–5.56) | 3 |
| S21 - Digestive system surgical procedures: colon/rectum | 2.65 (1.91–3.62) | 2 |
| R06 - Skin/subcutaneous tissue: free island flaps | 4.64 (2.58–6.36) | 3 |
| C13 - Internal medicine: hospital assessment/consult | 1.96 (1.52–2.36) | 1 |
| H13 - Family practice: assessment/consult on weekdays | 2.85 (2.18–3.52) | 2 |
| C21 – Pain management: limited consultations | 1.84 (1.55–2.10) | 1 |
| R11- Operations of the breast: incision, excision, repair | 2.81 (1.02–3.41) | 3 |
*AOR, 95% CI = Adjusted Odds Ratio, 95% Confidence Interval