British Journal of Anaesthesia, 1978, Vol. 50, No. 9 917-920
© 1978 The Board of Management and Trustees of the British Journal of Anaesthesia
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FREQUENCY OF PREVIOUS ANAESTHESIA IN AN ANAESTHETIC PATIENT POPULATION
Department of Anaesthetics, The Queen's University of Belfast
Department of Medical Statistics, The Queen's University of Belfast
Ten thousand patients presenting for anaesthesia were questioned about their anaesthetic history; 6672 had received an anaesthetic previously, 19.2% in the preceding 4 weeks. Of 2780 in whom the agents were known, 80.4% had received thiopentone, 18.1% Althesin and 57.4% halothane. Thirty-seven per cent of the total survey population had received two or more anaesthetics.