• S Weyerer, R el-Barrawy, S König, and A Zimber.
• Zentralinstitut für Seelische Gesundheit, Mannheim.
• Gesundheitswesen. 1996 Apr 1;58(4):201-6.

AbstractCross-sectional studies conducted in 1988 and 1992 using identical assessment methods also determined the prevalence of psychotropic drug consumption by the residents of homes for the elderly in the city of Mannheim. Another purpose of the studies was to find out the extent of a possible interrelation between treatment with psychotropics on the one hand and sociodemographic sociodemographic characteristics and behaviour problems of the residents on the other. In addition, in all consecutive new admissions to the homes not only the prevalence of consumption of psychotropics was investigated, but also the question to what extent the use of psychotropic drugs increases the mortality rate. In a total of 12 Mannheim old-age homes each in 1988 (n = 542) and 1992 (n = 497) all the residents older than 65 years of age were investigated. Between 1986 and 1988 all consecutive admissions (n = 239) to Mannheim old-age homes were interviewed and the mortality risk determined in a subsequent investigation in 1992. Taking a period of four weeks as reference period, 42.1% of the residents were treated during that period with psychotropics in 1988, of which 13.3% received neuroleptics, 11.7% hypnotics, 8.9% antidepressants and 13.0% tranquilizers. There were considerable variations between the individual homes in respect of the intake of psychotropics (minimum 18.2%, maximum 58.3%). In 1992 the prevalence of the use of psychotropics rose to 47.6%, the increase being mainly due to neuroleptics (23.8%) and, to a lesser extent, to antidepressants (12.9%). Compared with 1988 there was a slight decrease in the consumption of tranquilizers (10.9%) and hypnotics (10.7%). In 1988 there was no statistically significant connection between intake of psychotropics and gender, age, frequency of visits by relatives/friends, duration of residence and behaviour problems (aggression, suspiciousness, wandering, depression, dementia) of the residents. This result was also confirmed for 1992, albeit with two exceptions: a significantly higher consumption of psychotropic drugs by home residents characterised by the "behaviour problems wandering" and "depression". Examination of the consecutively newly admitted inmates revealed that psychotropic drug consumption was already relatively high (38.0%) at the time of admission. The mortality risk, determined after having checked on possibly confounding variables, was not significantly enhanced in residents who had already been treated with psychotropics at the time of admission (odds ratio: 0.52; Cl: 0.25-1.08). Compared with elderly persons in private households the consumption of psychotropics is markedly higher in old-age homes. However, the intake is not due to institutionalisation, but had already been high at the time of admission. Prospective studies of the course with relatively short follow-up intervals would be necessary for a differentiated examination of the determinants and effects of high psychotropics consumption and to establish a sound foundation for an appropriate prescription of psychotropics for home residents.

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