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)
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)
ABsTRAcT This chapter introduces cost-sensitive learning and its importance in medicine. Health managers and clinicians often need models that try to minimize several types of costs associated with healthcare, including BLOCKINattribute BLOCKINcosts BLOCKIN(e.g. BLOCKINthe BLOCKINcost BLOCKINof BLOCKINa BLOCKINspecific BLOCKINdiagnostic BLOCKINtest)(More)
There is currently a need to optimize the levels of perceived quality in most public services. Some of the most critical services are those related to Health, since health and welfare are fundamental to the population as a whole. Both public and private Health organizations are therefore interested in quantifying how good their services are, and to what(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)
BACKGROUND Several organizations and individual authors have been proposing quality indicators for the assessment of clinical care in HIV/AIDS patients. Nevertheless, the definition of a consensual core set of indicators remains controversial and its practical use is largely limited. This study aims not only to identify and characterize these indicators(More)