Table 2 Percentage (%) of cases with missing data for specific variables in the original APPROACH database
FISCAL YEAR | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
ICD-9-CM | ICD-10 | |||||||||||
CLINICAL VARIABLES | TOTAL | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 |
N | 86,649 | 6,348 | 6,131 | 6,242 | 6,718 | 8,110 | 8,469 | 8,479 | 8,767 | 8,835 | 9,257 | 9,293 |
Dialysis (%) | 11.5 | 4.7 | 2.8 | 2.5 | 3.6 | 4.9 | 2.1 | 24.1 | 11.0 | 20.7 | 21.5 | 18.2 |
Diabetes Type I (%) | 6.5 | 4.7 | 2.8 | 2.5 | 3.6 | 2.9 | 0.9 | 14.4 | 8.8 | 7.8 | 10.0 | 9.2 |
Renal (Creatinine > 200 mmol/L) (%) | 29.8 | 20.8 | 12.7 | 15.3 | 28.8 | 59.5 | 43.2 | 32.3 | 26.7 | 25.1 | 24.6 | 30.0 |
Malignancy/Metastatic Disease (%) | 10.4 | 7.0 | 5.7 | 5.9 | 5.9 | 5.1 | 2.1 | 20.5 | 17.7 | 14.4 | 11.7 | 13.5 |
Prior CABG (%) | 9.2 | 20.8 | 11.1 | 10.4 | 10.9 | 12.2 | 6.3 | 1.1 | 0.1 | 10.0 | 12.4 | 10.3 |
Liver/GI (%) | 11.1 | 0.2 | 0.1 | 5.4 | 5.9 | 5.1 | 2.1 | 39.1 | 16.4 | 13.2 | 11.3 | 13.8 |
Prior PCI (%) | 9.3 | 19.3 | 11.3 | 10.1 | 11.0 | 12.7 | 6.6 | 1.2 | 0.2 | 10.0 | 12.8 | 12.1 |
Cerebrovascular Disease (%) | 10.8 | 4.7 | 2.8 | 2.5 | 3.6 | 4.9 | 2.1 | 11.9 | 11.3 | 21.3 | 23.7 | 20.1 |
PVD (%) | 10.4 | 4.7 | 2.8 | 2.5 | 3.6 | 4.9 | 2.1 | 12.0 | 11.3 | 21.4 | 21.0 | 18.6 |
Pulmonary Disease (%) | 9.3 | 7.0 | 5.7 | 5.9 | 5.9 | 5.1 | 2.1 | 17.6 | 14.2 | 11.7 | 11.0 | 12.5 |
Congestive heart failure (%) | 14.1 | 20.6 | 17.3 | 8.3 | 10.7 | 16.0 | 10.2 | 12.5 | 10.8 | 17.2 | 17.5 | 14.4 |
Diabetes Type II (%) | 6.7 | 4.7 | 2.8 | 2.5 | 3.6 | 2.9 | 0.9 | 14.7 | 8.9 | 7.6 | 10.3 | 10.1 |
Prior MI (%) | 15.8 | 19.3 | 15.9 | 9.5 | 12.2 | 16.6 | 11.4 | 17.7 | 18.2 | 19.1 | 17.5 | 14.9 |
Hypertension (%) | 11.2 | 14.9 | 12.4 | 7.8 | 10.8 | 15.1 | 10.9 | 11.5 | 10.0 | 8.7 | 12.2 | 9.3 |
Hyperlipidemia (%) | 17.4 | 28.0 | 26.8 | 19.9 | 20.8 | 22.7 | 17.1 | 14.8 | 12.9 | 13.2 | 12.1 | 11.0 |
Proportion with one or more missing | 58.9 | 48.2 | 45.8 | 39.5 | 49.5 | 72.3 | 58.3 | 74.1 | 60.0 | 64.8 | 60.2 | 61.3 |