The proportion of pregnant women eligible for the 20-week screening scan who are tested, leading to a conclusive result within the defined timescale. Rationale

Royal College of Radiologists ( RCR) and Society and College of Radiographers (SCoR) standards for the provision of an ultrasound service These revised screening standards for the NHS fetal anomaly screening programme ( FASP) replace previous versions. They apply to data collected from 1 April 2022 unless stated otherwise in the document. Both crude and maternal age standardised DRs will be presented. Ranges as specified reflect the need to maintain the DR close to the national programme target. Performance thresholds Screening strategy Data suggests that while services were maintained, performance was affected for this KPI during COVID-19 in 2020. This is not unexpected as technical guidance in place at the time stated that services could offer screening later than 10 weeks. The UK National Screening Committee (UK NSC) recommends all eligible pregnant women in England are offered screening to assess the chance of the baby being born with Down’s syndrome (trisomy 21 ( T21)), Edwards’ syndrome (trisomy 18 ( T18)) and Patau’s syndrome (trisomy 13 ( T13)) or a number of physical conditions.

Sample did not arrive at the laboratory as specified in the specimen transport and storage section of the FASP laboratory handbook. Public Health England ( PHE) is committed to reducing inequalities and variation in participation to help make sure everyone has fair and equal access to screening services. Denominator: number of confirmed cytogenetic diagnoses of T21, T18, T13 following any result (higher or lower chance) from the combined test Down’s syndrome (T21) quadruple test

Numerator: number of samples received in the laboratory that were inadequate due to at least one of the following criteria: National performance of ST4a (see standard SCT-S05) in Q1 was 49.6%, higher than the previous quarter. The trend graph below shows England ST4a performance since the KPI was first published in Q1 2019 to 2020. Thresholds have not yet been set for this KPI. make sure there is effective communication between maternity and ultrasound services, for example when interpreting services are needed National performance of ST4a in Q4 was 52.9%, the highest ever level recorded for this KPI. The national trend graph below shows the ST4a performance since the KPI was first published from 1 April 2019. Thresholds have not yet been set for this KPI.To provide assurance that screening is offered to everyone who is eligible and each woman who chooses to accept screening has a conclusive screening result. Definition National performance of NB2 (see standard NBS-S06) in Q4 was 2.1%, lower than the previous quarter. The trend graph below shows that England NB2 performance is above the acceptable threshold of 2%. NB2 is a KPI where a lower performance is better. National performance of FA2 in Q2 2021 to 2022 was 99.2%, slightly higher than the previous quarter. FA2 is collected 6 months (2 quarters) in arrears. The trend graph below shows that England FA2 performance has remained above the achievable threshold of 95% since 1 April 2017. National performance of NB2 (see standard NBS-S06) in Q2 was 2.2%, similar to the previous quarter. The trend graph below shows that England NB2 performance is above the acceptable threshold of 2%. NB2 is a KPI where a lower performance is better.

All screening services who submitted data (136 out of 136) met the acceptable threshold of 90%, with 133 meeting the achievable threshold of 95% and 12 of them reporting performance of 100%. present to the service (either dating scan or booking) with a CRL greater than 84.0mm (after 14 weeks plus 1 day) - some women may book and are thought to be before 14 weeks plus 2 days by last menstrual period ( LMP) but when scanned they are found to be at or after 14 weeks plus 2 days; these women can be excluded if there were no delays in the usual process of booking the dating scan This standard is now called FASP-S03: diagnosis or intervention: test turnaround time quantitative fluorescence-polymerase chain reaction ( QF-PCR). In FASP-S02, the exclusion ‘women who are offered an appointment within the optimum time but choose to attend at a different time for personal reasons’ was moved to the subset of women left to follow up. This is because evidence shows this is masking inequalities in some services. The removal of this exclusion will have minimal impact on performance at an England level. FASP-S03: diagnosis/intervention: test turnaround time quantitative fluorescent-polymerase chain reaction (QF-PCR) Denominator: eligible women is the total number of pregnant women booked for antenatal care during the reporting period, excluding women who:

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Date standard updated: April 2022. FASP-S05: test: turnaround time T21, T18, T13 screening Description National performance of FA2 in Q1 2020 to 2021 was 99.3%, the highest ever level recorded for this key performance indicator (KPI0. FA2 is collected 6 months (2 quarters) in arrears. The national trend graph below shows that FA2 performance has remained above the achievable threshold of 95% since 1 April 2017. The numerator and denominator include those completing fetal anomaly scan at 18 weeks plus 0 days to 23 weeks plus 0 days.