Table 3.
Electronic Health Record Predictors (Categorized by type) by National Surgical Quality Improvement Program Complication Status
| Variable Type | All Patients N (%) | Patients with Any Complication N (%) | Patients with No Complication N (%) |
|---|---|---|---|
| (n=6,840) | (n=922) | (n=5,918) | |
| At least one of the 60 ICD-9 codes | |||
| No | 3,596 (52.6) | 283 (7.9) | 3,313 (92.1) |
| Yes | 3,244 (47.4) | 639 (19.7) | 2,605 (80.3) |
| At least one of the 63 CPT codes | |||
| No | 2,306 (33.7) | 41 (1.8) | 2,265 (98.2) |
| Yes | 4,534 (66.3) | 881 (19.4) | 3,653 (80.6) |
| At least one of the 39 medications | |||
| No | 4,561 (66.7) | 168 (3.7) | 4,393 (96.3) |
| Yes | 2,279 (33.3) | 754 (33.1) | 1,525 (66.9) |
| CPT-specific Complication event rate, median (IQR) | 7.0 (3.1–15.8) | 22.7 (12.4–38.6) | 5.9 (2.3–13.2) |
Abbreviations: CPT, common procedural terminology; ICD, international classification of disease; IQR, interquartile range.
Fisher’s exact p-values for binary variables and Wilcoxon rank sum for CPT-specific complication event rate. All p values were <0.0001.