| Primary Diagnosis | Year | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | |
| Total | 248 | 251 | 247 | 238 | 231 | 238 | 243 | 250 | 244 |
| Congenital Disease | 118 | 119 | 120 | 107 | 104 | 97 | 92 | 89 | 77 |
| Idiopathic Pulmonary Arterial Hypertension | 56 | 55 | 55 | 59 | 61 | 67 | 70 | 73 | 72 |
| Cystic Fibrosis | 13 | 13 | 12 | 12 | 8 | 9 | 10 | 8 | 9 |
| Emphysema/COPD | 7 | 9 | 8 | 6 | 6 | 6 | 6 | 7 | 5 |
| Alpha-1-Antitrypsin Deficiency | 4 | 3 | 3 | 2 | 2 | 2 | 1 | 1 | 1 |
| Other | 18 | 17 | 16 | 13 | 10 | 14 | 17 | 20 | 23 |
| Unknown | 32 | 35 | 33 | 39 | 40 | 43 | 47 | 52 | 57 |
| Total (%) | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% |
| Congenital Disease | 47.6% | 47.4% | 48.6% | 45.0% | 45.0% | 40.8% | 37.9% | 35.6% | 31.6% |
| Idiopathic Pulmonary Arterial Hypertension | 22.6% | 21.9% | 22.3% | 24.8% | 26.4% | 28.2% | 28.8% | 29.2% | 29.5% |
| Cystic Fibrosis | 5.2% | 5.2% | 4.9% | 5.0% | 3.5% | 3.8% | 4.1% | 3.2% | 3.7% |
| Emphysema/COPD | 2.8% | 3.6% | 3.2% | 2.5% | 2.6% | 2.5% | 2.5% | 2.8% | 2.0% |
| Alpha-1-Antitrypsin Deficiency | 1.6% | 1.2% | 1.2% | 0.8% | 0.9% | 0.8% | 0.4% | 0.4% | 0.4% |
| Other | 7.3% | 6.8% | 6.5% | 5.5% | 4.3% | 5.9% | 7.0% | 8.0% | 9.4% |
| Unknown | 12.9% | 13.9% | 13.4% | 16.4% | 17.3% | 18.1% | 19.3% | 20.8% | 23.4% |