Results of the proficiency testing of conventional neonatal screening tests in 2021
| Variable | 1st trial | 2nd trial | |||
|---|---|---|---|---|---|
| No. of institutions | Proportion of correct answers (%) | No. of institutions | Proportion of correct answers (%) | ||
| Phenylketonuria | 15 | 150/150 (100) | 15 | 150/150 (100) | |
| Galactosemia | 15 | 150/150 (100) | 15 | 150/150 (100) | |
| Congenital adrenal hyperplasia | 15 | 150/150 (100) | 15 | 149/150 (99.3) | |
| Maple syrup urine disease | 15 | 149/150 (99.3) | 15 | 150/150 (100) | |
| Homocystinuria | 15 | 150/150 (100) | 15 | 150/150 (100) | |
| Congenital hypothyroidism | 90/90 (100) | 90/90 (100) | |||
| TSH | 15 | 48/48 (100) | 15 | 48/48 (100) | |
| T4, total | 8 | 150/150 (100) | 8 | 150/150 (100) | |
Abbreviations: TSH, thyroid-stimulating hormone; T4, thyroxine.