The question as to whether deaf teenagers have better language skills if they are identified as deaf just after they are born is being answered in a probe by the University of Southampton.
The scientists will investigate the children's level of development and compare them to deaf teenagers who were not screened as newborn babies.
The team has been studying the development of a group of children whose hearing impairment was detected at birth in a pilot screening programme conducted in Southampton and London in the 1990s. Now those children are aged 13 to 18.
Scientists, funded by the Wellcome Trust, will investigate the children's level of development and compare them to deaf teenagers who were not screened as newborn babies. They will also compare them to 'hearing' teenagers from the same parts of the country.
A national, universal newborn screening programme for deafness was introduced in the NHS following the publication of the team's initial study in 1998. This new form of screening is now in place in every area of the UK.
Colin Kennedy, professor of neurology and paediatrics at the University and a consultant paediatric neurologist at Southampton General Hospital, is leading the study. He explains: "We tested the effect of screening all newborn babies for hearing problems at birth and found that it was an effective way of picking up hearing impairment early in the first year after birth. We also discovered that children exposed to this type of newborn screening had, on average, better language and reading abilities at age 8 years than those not exposed to newborn screening.
"As the group are now teenagers, we are going back to review their progress. This work suggests that screening all babies for hearing impairment at birth, so that families can have the information they need to support their baby's development, does lead to benefits of practical importance at primary school, but only now can we find out what benefit this leads to in the teenage years."
Reading, language, school attainment, behaviour, quality of life, interpersonal relationship functioning, social understanding and views about their deafness and their education will all be investigated in the latest study.