SUMMARYThis study investigated the psychosocial and physical factors preceding psychiatric admission in 70 elderly patients suffering from senile dementia by comparing them with two control groups, 50 dementia sufferers in the community and 50 fit elderly people matched for age and sex. There was no overall excess of current physical ill-health or disability in the dementia sufferers. Moreover, the dementia sufferers had more social contacts and better support from relatives and services than the fit elderly group. However, the dementia patients who lived with a carer had significantly more negative communication than those dementia controls living with carers. Negative communication may increase the risk of admission but may be attenuated by day centre support.