Introduction:

The World Health Organization recognizes dementia as a public health priority. It affects 50 million people worldwide, with around 10 million new cases reported each year.

Objective:

To apply the diagnostic criteria to patients with dementia according to the Diagnostic and Statistical Manual of Mental Disorders-V and the International Classification of Diseases-10 at the René Vallejo Ortiz University Psychiatric Hospital between June of 2016 and December 2022.

Methods:

An observational, descriptive, cross-sectional study was carried out. The universe was made up of all patients admitted to the aforementioned institution. The non-probabilistic sample and at the discretion of the authors was made up of 66 adult patients with the diagnosis in the indicated study period. Descriptive and inferential statistics were used. The data was presented in tables and graphs.

Results:

Of the 66 patients investigated, 33.3% were between 60 and 69. The female sex represented 57.6%. According to the DSM-V, 24 patients, 36.4%, were within A9, while 12 (18.2%) were within A10. However, according to ICD -10, 93.9% meet the criteria for dementia.

Conclusions:

The main clinical manifestations were disorientation and hypomnesia associated with mild cognitive impairment. In the association of the classifications, it was found that only half of those studied unanimously met the diagnostic criteria.

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