[Cellular immunodeficiency (including AIDS): incidence and length of stay of hospitalized cases in Austria in 1990].

The incidence of cellular immunodeficiency (including AIDS), treated at hospitals in Austria in the year 1990, was 3.8 per 100,000 (n = 294, males 6.3 per 100,000, females 1.5 per 100,000). On the average every patient with this diagnosis was admitted to the hospital 3.6 times per year. The average hospitalization time was 7.5 days, summing up to a mean of 27.3 days of stay per case per year. A total of 8031 days was necessary for the hospital care of these patients, costing AS 86873 for care per person in 1990 (AS 3,180 per day in the hospital). In relation to the grand total of approximately 1.8 million admissions to Austrian hospitals, patients with the diagnosis "cellular immunodeficiency (including AIDS)" cover only 0.06% of all admission and 0.03% of patient days per year respectively.