Table 4.
Comparison of phenotyping algorithm and ICD-9 codes at primary site (Mount Sinai Hospital)
| Manual chart review | Manual chart review | ||||||
|---|---|---|---|---|---|---|---|
| Phenotyping Algorithm | Case | Control | Total | ICD-9 Codes | Case | Control | Total |
| Case | 569 | 24 | 593 | Case | 244 | 144 | 593 |
| Control | 40 | 553 | 593 | Control | 365 | 433 | 593 |
| Total | 609 | 577 | 1186 | Total | 609 | 577 | 1186 |
| Positive Predictive Value (95% Confidence Interval) | 95.95 (93.95–97.33) | Positive Predictive Value (95% Confidence Interval) | 62.89 (57.84–67.67) | ||||
| Negative Predictive Value (95% Confidence Interval) | 93.25 (90.85–95.08) | Negative Predictive Value (95% Confidence Interval) | 54.26 (50.73–57.75) | ||||