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Newborn Bloodspot screening Wales annual statistical report 2022-23

Details:

Published on: 21st July 2025

  • All Wales/National
  • Annual

This report is a detailed summary of information on work undertaken by the Newborn Bloodspot Screening Programme for the year April 2022 to the end of March 2023. Results are reported by health board where screening has been carried out. Further details are available on request.

Headline statistics

This report covers the period from April 2022 to March 2023

  • The number of eligible births across Wales was 28,313
  • The number of babies tested was 28,178 (99.5%)
  • 96.5% of eligible newborn babies had a bloodspot card (for screening or decline) received in
    the laboratory by day fourteen of life (completeness of offer)
  • 95.0% of eligible newborn babies had conclusive bloodspot screening results by day seventeen
    of life (coverage)
  • 95.2% of first blood spot samples were taken between days 4 and 6 of life
  • 54.4% of samples were taken on day 5 of life, in line with programme recommendations
  • The avoidable repeat rate was 2.8%
  • 99.9% of bloodspot cards received in the laboratory had a valid NHS number for the baby
    recorded
  • 85.1% of bloodspot cards were received within 3 working days of sample collection
  • The number of screen positive babies detected in the year was as follows: phenylketonuria (4),
    maple syrup urine disease (0), medium-chain acyl-CoA dehydrogenase deficiency (6),
    homocystinuria (1), glutaric aciduria type 1 (0), isovaleric acidaemia (4), congenital
    hypothyroidism (27), cystic fibrosis (16) and sickle cell disorders (4). These are screen positive
    results, not all babies were diagnosed with the suspected condition.

Table of contents:

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Newborn Bloodspot Screening Wales Annual Statistical Report 2022-23

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