Table 3.
In-hospital mortality for benchmark operations in administrative vs. clinical registry data
| Operation | Mortality for Operations Identified in Clinical Registry |
Mortality for Operations Identified in Administrative Data |
Absolute Difference in Mortality |
Relative Difference in Mortality |
P-Value |
|---|---|---|---|---|---|
| Method 1 – Individual ICD-9 Procedure Codes | |||||
| VSD Repair | 0.60% (30/5023) | 2.14% (220/10266) | +1.55% | +258.8% | <0.0001 |
| TOF Repair | 1.12% (35/3138) | 1.82% (71/3903) | +0.70% | +63.1% | <0.0001 |
| CAVC repair | 2.00% (43/2151) | 2.39% (88/3676) | +0.39% | +19.8% | 0.09 |
| ASO | 1.66% (24/1449) | 2.73% (66/2415) | +1.08% | +65.0% | <0.001 |
| ASO + VSD repair | 3.48% (20/575) | 4.58% (38/829) | +1.11% | +31.8% | 0.10 |
| Fontan | 1.41% (44/3116) | 1.66% (58/3488) | +0.25% | +17.8% | 0.03 |
| Truncus repair | 9.43% (43/456) | 7.64% (46/602) | −1.79% | −19.0% | <0.01 |
| Norwood | NA | NA | NA | NA | NA |
| Method 2 – Additional Inclusionary/Exclusionary ICD-9 Diagnosis & Procedure Codes | |||||
| VSD Repair | 0.60% (30/5023) | 0.78% (43/5498) | +0.2% | +31.0% | 0.12 |
| TOF Repair | 1.06% (30/2817) | 1.17% (39/3338) | +0.1% | +9.7% | 0.57 |
| CAVC repair | 1.92% (40/2079) | 1.91% (59/3097) | −0.0% | −1.0% | 0.94 |
| ASO | 1.66% (24/1449) | 1.43% (20/1394) | −0.2% | −13.4% | 0.42 |
| ASO+ VSD repair | 3.48% (20/575) | 4.12% (32/777) | +0.6% | +18.4% | 0.36 |
| Fontan | 1.41% (44/3116) | 1.31% (40/3055) | −0.1% | −7.3% | 0.39 |
| Truncus repair | 9.43% (43/456) | 7.01% (38/542) | −2.4% | −25.7% | 0.001 |
| Norwood | 15.82% (345/2181) | 14.08% (285/2024) | −1.7% | −11.0% | <0.01 |
Reference for comparisons: clinical registry data. NA=No data are listed for the Norwood operation for Method 1, as there is no individual ICD-9 procedure code for the Norwood operation.