Inmate aging is considered to start at the age of 50, which is early in relation to aging in the general population. The aging of the criminal population in France poses a real public health problem. There is very little research on the mental health (mental and cognitive disorders) of older inmates. ObjectivesThe objective of this study was to evaluate the effect of age and time spent in prison on mental disorders and cognitive performance of elderly prison inmates. We put forward the hypothesis that age and amount of time spent in prison are associated with the deterioration of older inmates’ mental health, that is, an increase in the prevalence of psychiatric disorders and a decrease in cognitive performance. MethodsWe recruited 138 men aged 50 and over in seven French prisons. The research protocol included a semi-directive interview, the Mini International Neuropsychiatric Interview (MINI DSM-IV) for the assessment of mental disorders, as well as the Rapid Battery for Frontal Efficiency (BREF) and the Mini Mental State Examination (MMSE) for the evaluation of cognitive performance. ResultsThe average age of the inmates (N=138) was 59.7 years (range 50–84, SD=8.02). The average sentence was approximately 13.5 years (SD=7) and the average time spent in prison was 6.9 years (SD=5.9). The results showed a very high prevalence of mental disorders, notably depression and anxiety, and cognitive disorders. However, the probability of occurrence of certain psychiatric diagnoses decreases with age (major depressive episode, agoraphobia, post-traumatic stress disorder and generalized anxiety). In addition, logistic regression estimates showed no significant relationship between time spent in prison and mental disorders. However, there is a significant link between time spent in prison and cognitive impairment. ConclusionOur hypothesis is partially validated. Indeed, age is not associated with mental or cognitive disorders. However, the amount of time spent in prison has an effect on the deterioration of certain cognitive functions. It appears that after the age of 50, it is not chronological age but environmental factors that mainly explain cognitive decline. Our study shows that the longer the detention period, the greater the inmate's cognitive decline. These results highlight the very high vulnerability of elderly prisoners in terms of mental health and emphasize the importance of implementing appropriate detection and care measures to address the needs of this segment of the criminal population. Routine screening for cognitive impairment in all older prisoners should be carried out by caregivers in penitentiary institutions. Furthermore, better follow-up and cognitive assessment of prisoners aged 50 or more and whose length of incarceration exceeds five years could make it possible to detect subjects at risk and to propose appropriate activities to reduce and/or delay the effects of aging in detention.
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