J. Vanos et al., THE INFLUENCE OF LIFE EVENTS ON THE SUBSEQUENT COURSE OF PSYCHOTIC ILLNESS - A PROSPECTIVE FOLLOW-UP OF THE CAMBERWELL COLLABORATIVE PSYCHOSIS STUDY, Psychological medicine, 24(2), 1994, pp. 503-513
Fifty-nine psychotic patients with acute onset of illness, who had bee
n interviewed about their experience of stressful life events before t
he episode, were followed up for an average of 42 months. Thirty patie
nts (51%) had experienced a stressful life event in the 3 months immed
iately before onset (EV+), 29 had not (EV-). In patients with an RDC d
iagnosis of affective disorder or unspecified functional psychosis, th
e presence of stressful life events was associated subsequently with m
ilder symptom severity, less time spent in hospital, more treatment fo
r depressive symptoms and less for psychotic symptoms. In schizophreni
a, differences were less apparent, but patients with event associated
episodes had less need of anti-psychotic maintenance medication over t
he follow-up period and tended to have spent more time in complete rem
ission. EV+ schizophrenic subjects also had higher morbid risk for sch
izophrenia in their first degree relatives, and tended to be female an
d to have less typical symptoms than EV- schizophrenic patients.