Psychiatric morbidity in bus crews following violent assault: a follow-up study.

In a prospective study 22 bus crews who were victims of physical assault were assessed using standardized psychiatric instruments, followed up for 18 months and compared to a non-assaulted control group drawn from the same bus garage. At initial assessment the assaulted group, compared to the controls showed a significant increase in psychiatric impairment and distress (as measured by the GHQ-30 and IES respectively), with 23% of assault victims developing post-traumatic stress disorder as defined by DSM-III-R. At follow-up, while high levels of both psychiatric impairment and distress persisted there was evidence that they may be separate phenomena.