C21st Health Check
The C21st Health Check (Glasgow University Affiliated Programme, 2001) includes assessment sections on mental ill-health, problem behaviours, autistic-spectrum disorders, developmental level and support needs, as well as general physical health, and has been demonstrated to have good utility (Curtice et al, 2001). It also has a section for a selected physical examination, including assessment of vision and hearing. The sections on mental ill-health, problem behaviours and autistic disorders were used to trigger referral for full psychiatric assessment of participants who scored below our cut-off value on the PAS–ADD Checklist. Assessment of physical health was necessary to exclude any possible physical cause of apparent psychiatric presentation, and measurement of physical health items provided data for statistical investigation of associations with mental ill-health.