Key Health Statistics from General Practice 1996. Stationery Office, 1998. Asthma Current Perspectives. Impact of Asthma Survey Results. This survey is based on a group of self-selected people with asthma and therefore the results may not be representative of the population as a whole.
Results are also self-reported.
Cause 1997, Office of National Statistics, Series DH2 No.24, Annual Report of the Registrar General for Scotland, 1997. General Registrar Office for Scotland. Registrar Annual Report, 1997. General Registrar of Northern Ireland. Morbidity Statistics from General Practice.