A study of the frequency of life events was conducted in a group of su
bjects selected from the general population over a period of 9 months.
Four assessments were made, using an events questionnaire and the Psy
chiatric Symptom Index (PSI), at 3-monthly intervals. The results show
a significant relationship (maintained over time) between PSI score a
nd the number of upsetting events, but no significant relationship bet
ween PSI score and non-upsetting events. These observations are interp
reted as follows: the higher frequency of upsetting life events is sec
ondary to the previous psychological pattern of subjects.