The prevalence of false positives varies depending on the specific neonatal screening test. For example, the false positive rate for [congenital hypothyroidism]() can be relatively high due to the [immature thyroid function]() in some newborns. On the other hand, the false positive rate for [newborn hearing screening]() may be lower but still significant. The overall false positive rate can also be influenced by factors like the specificity of the test and the prevalence of the disorder in the population.
