CAPI	Computer Assisted Personal Interviewing
CASI	Computer Assisted Self Interviewing
CIDI	Composite International Diagnostic Interview
CIS-R	Clinical Interview Schedule-Revised
DSM	Diagnostic and Statistical Manual
GHQ	General Health Questionnaire
GPs	General Practitioner
ICD	International Classification of Diseases
LLSI	Limiting Long Standing Illness
NI	Northern Ireland
NS-SEC	National Statistics Socio-economic Classification
UK	United Kingdom
US	United States
WHO	World Health Organisation