Effectiveness of multidisciplinary psychiatric home treatment for elderly patients with mental illness: a systematic review of empirical studies

The vast majority of older people with mental illness prefer to live independently in their own homes. Barriers caused by the health care system often prevent adequate, adapted treatments. With regard to the increasing ageing of the population, the determination of effective, age-appropriate service models for elderly patients with mental illness is clearly required. The aim of this review is to examine and to evaluate multidisciplinary psychogeriatric treatment models that include home visits, particularly with regard to the effects on psychiatric symptoms, social and mental health rehabilitation and quality of life. A systematic review was carried out of empirical studies with participants who were diagnosed with a mental illness according to ICD-10, aged 60 years or older, and who were living at home. The inclusion criteria comprised a duration of intervention of at least 12 weeks and a minimum of two interventions and domiciliary visits delivered by a multidisciplinary team. The online databases Medline, PsychInfo, Web of Science, Cochrane Register of Controlled Trials, and Google Scholar, as well as hand search, were used to search for relevant studies published between 1996 and 2016. An additional search was performed for studies published between 2016 and 2019. After removing duplicates, abstracts were screened and the remaining articles were included for full-text review. Of the 3536 records discovered in total, 260 abstracts appeared to be potentially eligible. Of these, 30 full-text articles were assessed for eligibility. For the additional search 415 records and abstracts were screened and 11 articles were read full text. Finally, only three studies fully met the inclusion criteria for this review. The results indicate that psychogeriatric home treatment is associated with significant improvements of psychiatric symptoms and psychosocial problems, fewer admissions to hospital and nursing homes, as well as lower costs of care. Psychogeriatric home treatment has positive effects on older people with mental illness. However, these findings are based upon a small number of studies. The need for further research, especially to specify the effective factors in psychogeriatric home treatment, is clearly indicated.