Arch Dis Child 2001;84:468-475 ( June )
Current topic

Screening and surveillance for autism and pervasive developmental disorders

G Baird^a, T Charman^b, A Cox^a, S Baron-Cohen^d, J Swettenham^c, S Wheelwright^d, A Drew^a

^a Newcomen Centre and Bloomfield Clinic, Guy's, King's College and St Thomas' Hospital Medical School, London, UK, ^b Institute of Child Health, University College London, UK, ^c Department of Human Communication and Science, University College London, ^d Departments of Experimental Psychology and Psychiatry, University of Cambridge, UK

Correspondence to: Dr G Baird, Department of Paediatric Neurology, Newcomen Centre, Guy's and St Thomas' Medical School, St Thomas St, London SE1 9RT, UK Gillian.Baird@gstt.sthames.nhs.uk

Accepted 21 December 2000

The first 150 words of the full text of this article appear below.

	Screening and surveillance

Screening and surveillance are different but related activities involving the detection of impairments with a view to prevention or amelioration of consequent disability and handicap. Screening is the prospective identification of unrecognised disorder by the application of specific tests or examinations. Surveillance refers to the ongoing and systematic collection of data relevant to the identification of a disorder over time by an integrated health system.

The review by Hall¹ in Health for all children concluded that most screening tests that set out to identify neurodevelopmental disorders do not meet the stringent criteria outlined by Cochrane and Holland² and Wilson and Jungner.³ In some conditions, for example language disorders, this is because there is uncertainty about "caseness" and tests tend to have low sensitivity and specificity.^4 5 This is particularly the case for screening tests that attempt to identify a specific condition rather than general developmental delay, and for the identification of . . . [Full text of this article]

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