Insomnia in patients admitted to psychiatric hospital departments

Background. The aim of this study is to estimate the prevalence of insomnia in patients requiring admittance to short-stay hospital psychiatric units. Methodology. A descriptive observational study was designed with the participation of 16 units for brief adult psychiatric hospitalization in Spain. The Athens Insomnia Scale was the instrument used. Results. Four hundred and twenty-five patients were included, with an average value on the global score of the Athens Insomnia Scale of 8.56 (SD: 5.78). The item that obtained the highest average score concerned the presence of waking up during the night, followed by that concerning the time needed to fall asleep. The estimated prevalence of insomnia is 53% (CI 95%). Conclusions. Insomnia is a problem with a high prevalence in psychiatric hospitalization units. The greatest difficulties are found in inducing sleep and staying asleep.