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Components of Pillar 2, Screening.
| Parameter | Description | Score | Interaction |
|---|---|---|---|
| Availability | DBS test is available and in use | 2 | OR |
| DBS test is not yet available, but is in development with published evidence | 1 | ||
| Performance | DBS test has a low false-positive rate and/or a high positive predictive value (PPV) | 1 | OR |
| DBS test has a high false-positive rate and/or a low PPV and/or requires additional confirmatory strategies that are available to improve screening performance | 0.5 |
