Autism ‘may be missed in girls’

Girls may show different symptoms

Girls with mild autism are less likely to be identified and diagnosed than boys, a study suggests.

Researchers examined 493 boys and 100 girls with autistic spectrum disorders.

They found the girls showed different symptoms, and fewer signs of symptoms traditionally associated with autism, such as repetitive behavior.

The researchers, who presented their work to a Royal College of Psychiatrists meeting, said this might mean cases among girls are missed.

“We shouldn’t assume autism or Asperger syndrome will look the same in both sexes Professor Simon Baron-Cohen University of Cambridge

Autism is thought to affect four times as many boys as girls – but the latest study suggests this might not be the case.

Most of the children featured in the study had been seen at the Social and Communication Disorders Clinic at Great Ormond Street Hospital in London. Additional cases came from Sunderland and Finland.

All the children were classified as “high-functioning”. They did not have classic autism, but did have difficulties with socialising and communication.

Relationship obsessions

The researchers, who have yet to publish their research, found that the girls were more likely to have obsessional interests centred around people and relationships.

However, these interests were more likely to be acceptable to their parents, and therefore tended not to be reported to doctors.

Characteristics such as shyness and over-sensitivity, common to people affected by autism, are sometimes deemed to be typically female traits Judith Gould National Autistic Society

In addition, these types of obsessions were less likely to be discovered using standard diagnostic questionnaires.

The investigators said more research was needed to analyse how autism spectrum conditions manifest differently in the sexes.

Professor Simon Baron-Cohen, an autism expert at the University of Cambridge, agreed.

He said: “This is an important clinical issue and there are too few studies addressing it.

“We shouldn’t assume autism or Asperger syndrome will look the same in both sexes.

“There may be many factors leading to these conditions either being underdiagnosed or misdiagnosed in females, or leading females to require a diagnosis less often.”

Judith Gould, of the National Autistic Society, said: “We hear from many women who have been diagnosed later in life.

“The way autism is presented in women can be very complex and so can be missed.

“It might be that due to misconceptions and stereotypes, many girls and women with autism are never referred for diagnosis, and so are missing from statistics.

“This may mean that many women who are undiagnosed are not receiving support, which can have a profound effect on them and their families.”

Ms Gould said it was also possible that girls were better at masking difficulties in order to fit in with society.

“Characteristics such as shyness and oversensitivity, common to people affected by autism, are sometimes deemed to be typically female traits.

“However if a boy were to display such characteristics, concerns may be raised.”

Minorities set to be US majority

Population projections are subject to a variety of factors

White people of European descent will no longer make up a majority of the US population by the year 2042 – eight years sooner than previous estimates.

The big change is among Hispanics and Asians, whose numbers are expected to double by the middle of the century to form 30% and 9% of the population.

It is projected that black people will account for 15%, a small increase.

The US Census Bureau’s latest projections are based on birth, death and current immigration rates.

According to the bureau’s statistics, ethnic and racial minorities will become the majority by 2042 and account for 54% of the population by 2050.

The process of change has been speeded up through immigration and higher birth rates among US minorities, especially Hispanics.

Non-Hispanic whites, who now make up 66% of the population, will account for 46% by the middle of the century.

‘Ageing baby boomers’

It has long been said that the US is a nation of immigrants but in the past the influx has mainly come from white Europeans.

CENSUS PREDICTION 2050: Minorities will make up 54% Hispanics: Rise to 30% from 15% Blacks: Small increase to 15% Asians: Rise to 9% from 4%

It is likely that the demographic changes will be experienced right across the country – and no longer confined to urban areas as in the past.

Overall, the US population is expected to rise from 305 million people to 439 million by 2050.

The white population will also be ageing. The number of people over 85 years old will triple in the next 40 years.

“The white population is older and very much centred around the ageing baby boomers who are well past their high fertility years,” William Frey, a demographer at the Brookings Institution think tank, told the Associated Press.

“The future of America is epitomized by the young people today. They are basically the melting pot we are going to see in the future.”

The Census Bureau points out that its projections are subject to big revisions, depending on immigration policy, cultural changes and natural or man-made disasters.