Doctors' stress levels were measured before and after the introduction of a
partial shift system as a result of the New Deal, through the administrati
on of the OSI questionnaire. Doctors' opinions regarding the introduction o
f this new work pattern were collected through the use of an in-depth, semi
-structured interview schedule. The study doctors working the on-call rota
exhibited higher stress levels than the doctor 'norm' group, and higher tha
n most other professional groups. The introduction of a partial shift syste
m resulted in a marked reduction of stress levels in relation to mental wel
l-being and job satisfaction, and a significant reduction in the effect of
stress on physical health. The study doctors perceived that the introductio
n of partial shifts would undermine the close relationship between continui
ty of patient care, the 'firm' system and training. The on-call rota was pr
eferred, providing the remuneration for its antisocial aspects was more app
ropriate. The abolition of 24-hour working and improvements in residential
accommodation were perceived as advantageous. Copyright (C) 1999 John Wiley
& Sons, Ltd.