Table 1 The accuracy of ICD9, HITEx and the combinations of ICD9 and HITEx for principal diagnosis and co-morbidity extraction.
| Â | Â | ICD9 | HITEx | ICD9 and HITEx | ICD9 or HITEx |
|---|---|---|---|---|---|
Exclude Insufficient Data | Principal | 80.08% | 81.64% | 75.78% | 85.94% |
| Â | Co-morbidity | 82.57% | 86.72% | 88.80% | 80.50% |
Insufficient Data = Yes | Principal | 71.57% | 73.20% | 66.34% | 78.43% |
| Â | Co-morbidity | 74.18% | 77.45% | 79.41% | 72.22% |
Insufficient Data = No | Principal | 78.76% | 79.74% | 76.80% | 81.70% |
| Â | Co-morbidity | 83.33% | 84.64% | 90.52% | 77.45% |