Alberto Freitas

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BACKGROUND The study of length of stay (LOS) outliers is important for the management and financing of hospitals. Our aim was to study variables associated with high LOS outliers and their evolution over time. METHODS We used hospital administrative data from inpatient episodes in public acute care hospitals in the Portuguese National Health Service(More)
PURPOSE To evaluate a methodology for adverse drug reactions (ADRs) detection through hospital databases. METHODS A retrospective analysis was conducted to identify ADRs using diagnostic codes from databases, later validated by chart review. An independent chart review was performed for comparison, as well as assessment of spontaneous reports. RESULTS(More)
INTRODUCTION Hospital readmissions are associated with increased healthcare expenses and with higher hospital fatality rates. We aim to characterize unplanned hospital readmissions occurred within 30 days after discharge, according to its Major Diagnosis Category, hospital type and location, and patients' demographic attributes. We also intend to estimate(More)
INTRODUCTION There is a lack of recent and nation-wide epidemiological studies of burns in Europe, mainly in southern Europe. There are no recent studies describing the clinical and economic burden of burns in this European area. Hence, this research aimed to describe the clinical and economic burden of burn hospitalisations in Portugal. METHODS A(More)
BACKGROUND Hyperbilirubinemia is emerging as an increasingly common problem in newborns due to a decreasing hospital length of stay after birth. Jaundice is the most common disease of the newborn and although being benign in most cases it can lead to severe neurological consequences if poorly evaluated. In different areas of medicine, data mining has(More)
BACKGROUND Audit Trails (AT) are fundamental to information security in order to guarantee access traceability but can also be used to improve Health information System's (HIS) quality namely to assess how they are used or misused. This paper aims at analysing the existence and quality of AT, describing scenarios in hospitals and making some recommendations(More)
PURPOSE This study aimed to detect and characterize adverse drug reactions (ADRs) that occurred during hospitalization (ADRIn ) and ADRs associated with admission (ADRAd ) in Portugal from 2000 to 2009. We also intended to compare the results of this methodology with spontaneous reporting. METHODS We conducted a nationwide study using a hospital(More)
BACKGROUND The number of HIV-related hospitalizations has decreased worldwide in recent years owing to the availability of highly active antiretroviral therapy. However, the change in HIV-related hospitalizations in Portugal has not been studied. Using comprehensive hospital discharge data from mainland Portuguese hospitals, we examined trends in(More)