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Congenital heart defects are a leading cause of infant death, accounting for more deaths than any other type of malformation and up to 7.5% of all infant deaths. Timely diagnosis is crucial for the best possible outcome for these children. However, the accuracy of current methods for screening for critical congenital heart defects (CCHD) before birth is variable and currently only detects these defects in between 35-50% of cases. Although around a third of remaining cases are picked up after birth, up to a third of children with a CCHD are sent home, where they may become unwell or die. Research led by Dr Andrew Ewer at the University of Birmingham has demonstrated that pulse oximetry is a rapid, safe, non-invasive, painless method of detecting the low blood oxygen levels associated with CCHD, and is also a cost-effective approach. As a result of Dr Ewer's research, Pulse Ox was recommended for adoption across the US in 2011 by the Secretary for Health and Human Services, and Dr Ewer has been instrumental in this screening approach being taken up worldwide. This research prompted a national UK review of screening for these conditions.
The UK Faecal Occult Blood Test Screening Programme, based on Dundee-led research (Steele), offers bowel cancer screening through mailed test kits followed up with colonoscopy when faecal blood is detected. It is estimated to prevent about 2,000 UK deaths annually. Steele's Screening Research Unit also trialled immunological faecal occult blood testing, which was subsequently incorporated into the Scottish screening algorithm. In addition to demonstrating a 27% reduction in bowel cancer deaths through participation in Faecal Occult Blood screening, the Unit has researched the incidence of interval cancers and the impact of repeated invitations, development of new tests, and strategies for increasing participation. All of these drive the National Screening Programme, and will further reduce mortality.
Diabetic retinopathy is a leading cause of blindness in people of working age. Screening programmes for its early detection are therefore crucial. Following the introduction of screening programmes for diabetic eye disease, research carried out at the University of Aberdeen enabled the resulting images to be analysed by computer rather than manually, a technique that has now been adopted by Scotland's national screening programme. This has achieved a significant impact on patient health, as well as economic impacts for the taxpayer, through cost savings, and for the company that developed the screening software commercially.
Therefore this research has had impact in health and welfare by influencing decisions and care practices by a health service.
Antenatal screening aims to identify genetic carriers of sickle cell/thalassaemia in order to provide prospective parents with "informed choice". Throughout the period January 2008-July 2013, the NHS in England has used a Family Origins Questionnaire in connection with sickle cell/thalassaemia screening derived from our research programme. The original policy issue concerned whether or not it is possible/desirable to target antenatal screening for sickle cell/thalassaemia by means of an ethnicity question. The policy problem was that socially constructed "ethnicity" categories correspond imperfectly and to an unknown degree with actual prevalence of genetic carriers. The screening question based on our research now guides the offer of initial screening and/or further laboratory tests for all pregnant mothers in England.
Essex contributed to the independent evaluation of the UK NHS Bowel Cancer Screening Pilot programme by conducting the psychosocial aspects of this research. The evaluation recommended full roll-out, and was used to inform the programme's subsequent development and implementation. Nationwide screening for 60-69 year olds, using the Faecal Occult Blood test, began in 2006 and in 2010 the programme was extended to include adults up to their 75th birthday. Since July 2006 over 17 million screening episodes have been completed and 15,000 cancers detected. It is estimated that the programme is on track to cut deaths by 16%.
Researchers at the University of Southampton have informed aviation security policies and training procedures of soldiers in the USA and UK. The research has applied principles from vision science to the practical field of contemporary security, specifically the screening of airport baggage for weapons and explosives, and the search for Improvised Explosive Devices (IEDs) embedded in the environment in combat theatres such as Afghanistan. Findings have contributed to international airport security and to vital training for troops in combat situations. They have also been widely used to inform the public about the latest advances in security procedures.
Research by Professor Judith Stephenson and colleagues at the UCL Institute of Women's Health into the effectiveness of chlamydia screening has led to guidance to health policy makers in the EU about national strategies for chlamydia control, and has influenced NICE guidelines on the subject. In particular, our work has informed debate on the value for money of the National Chlamydia Screening Programme (NCSP). Stephenson advised the National Audit Office on this topic, and a resulting report led to the NCSP focusing on chlamydia testing in sexual health services and primary care rather than screening in low risk groups. These changes are expected to make considerable cost savings to the NHS.
Research on Frequency Selective Surface (FSS) structures has led to major advances in the design and manufacture of the world's most advanced payload instrumentation for use in Earth observation satellites. This technology has provided the core element of the radiometer instrumentation needed for more accurate global weather forecasts and better understanding of climate change. The advances described have made it possible to combine all of the different functions of the MetOP-SG radiometer into one instrument, thereby halving the footprint of the satellite payload resulting in a [text removed for publication] cost saving.
Pioneering research at Essex developed an innovative mathematical method for determining the chlorophyll fluorescence parameter Fo', as well as novel LED lighting technology and a multi-plant imaging system. This instrument is marketed by Technologica. Originally an Essex spinout, the company has sold 42 units across Europe, Asia and South America since 2006, recording its highest ever profits over the past three years (totalling ~£115k). Essex's mathematical method for determining Fo' is also used by other manufacturers, who have since developed their own imaging systems. This research has helped to establish chlorophyll fluorescence imaging as a mainstream screening tool, now used globally to inform a range of crop production and handling strategies.