
PROGRAM SERVICES (2007)
| Disorder | Proficiency Testing Participants |
Quality Control Participants |
| Congenital Hypothyroidism | 201 | 198 |
| Phenylketonuria | 236 | 184 |
| Galactosemia | 91 | 70 |
| Congenital Adrenal Hyperplasia | 118 | 81 |
| Maple Syrup Urine Disease (Leu) | 150 | 99 |
| Homocystinuria | 139 | 96 |
| Tyrosinemia | 155 | 105 |
| Maple Syrup Urine Disease (Val) | 129 | 88 |
| Citrullinemia | 129 | 91 |
| FAO, AA, OA Disorders (MS/MS) | 157 | 111 |
| Cystic Fibrosis (IRT) | 75 | 57 |
| Biotinidase Deficiency | 80 | Not Offered |
| Galactose-1-Phosphate Uridyltransferase Deficiency | 80 | Not Offered |
| Sickle Cell Disease & Other Hemoglobinopathies | 75 | Not Offered |
Source: Newborn Screening Quality Assurance Program, CDC (May 2007)