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Positive predictive value (PPV), sensitivity and specificity for HCC case identification for each ICD-9 code sampling method
| Algorithm | PPV (%) | Sensitivity (%) |
Specificity (%) |
|---|---|---|---|
| Algorithm 1: Two 155.0 codes (n=1,138) | 67 | 95 | 93 |
| Algorithm 2: Two 155.0 codes and no other malignancy (n=922) | 73 | 84 | 95 |
