Persuading people to stop smoking

Forty smokers attending a chest clinic were given a questionnaire designed to measure motivation to stop smoking. The effects of three variables on their smoking level were investigated: (1) advice from the chest physician to stop smoking; (2) subjection to a further ‘motivating’ interview by a psychologist: (3) the wearing of a white coat by the psychologist during his interview. The questionnaire proved a useful predictor of smoking reduction over a 3-month follow-up period. Advice from the chest physician had a significant effect in getting people to reduce smoking over 3 months but the extra ‘motivating’ interview was ineffective. Patients responded to the white coat by reducing their smoking level significantly, irrespective of whether the psychologist wearing the white coat was advising them to reduce smoking or not. These results suggest that the advice-giving role of the doctor could be used more effectively than it currently is in preventive medicine, and that the psychologist has an important role to play in measuring the successful parameters of such advice and hence improving its quality.