High rates of undetected mental disorder have been reported in male remand
prisons. Little is known about the levels of mental disorder that are undet
ected among female remand prisoners. The aims of the study were to assess t
he prevalence of mental disorder in newly remanded female prisoners and the
efficacy of the prison health screen at identifying mental disorder. To ac
hieve these aims consecutive female remand prisoners were screened for ment
al disorder at reception to prison. Diagnosis of mental disorder was compar
ed with the findings from the standard prison health screen. There were 227
(59%) women who had at least one mental disorder (excluding substance depe
ndence), of whom 42 (11%) were psychotic. The prison reception screening id
entified 81 women as having a mental disorder, and nine of them were psycho
tic. These results lead us to conclude that the prevalence of mental disord
er, including psychoses, is very high in this population. The existing pris
on reception screening does not identify the majority of cases of mental di
sorder.