Background: Length of stay (LOS) is an important indicator of efficiency for inpatient care but it does not achieve an adequate performance if it is not adjusted for the case mix of the patients hospitalized during the period considered. After two similar studies for Internal Medicine and Surgery respectively, the aims of the present study were to search for Length of Stay (LOS) predictors in an acute psychiatric department and to assess the performance of the difference: observed-predicted length of stay, as an indicator of inpatient care inefficiencies.
The study supports the hypothesis that an infectious factor related to sexual behaviour could be involved in the occurrence of prostate cancer. A role for hormonal factors related to sexual activity cannot be ruled out.
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