The results obtained provide a valuable starting point for the Panamanian government from which it can identify the most serious inequalities in health and health service provision and develop policies to eliminate or reduce them. They also offer a baseline to monitor changes in the magnitude of these inequalities over time.
INTRODUCTION: There is increasing concern worldwide at the steady growth in acute inpatient admissions and emergency department (ED) attendances. AIM: To develop measures of variation in acute hospital use between populations enrolled at different general practices that are independent of the sociodemographic characteristics of those populations. METHODS: Two consecutive years of hospital discharge and ED attendance data were combined with primary health organisation (PHO) registers from 385 practices of over 1.5 million people to develop and test two measures of unplanned hospital use: the standardised acute hospital admission ratio (SAAR) and the standardised ED attendance ratio (SEAR). Disease-specific measures were also produced for inpatient events. RESULTS: The enrolled populations of a high proportion of practices had significantly higher or lower than expected acute use of hospitals and this was consistent over both years studied. Practices whose population made unexpectedly high use of acute hospital care for one condition tended to do so for others. Differences in health needs between practice populations as measured by clinical complexity, comorbidities and length of stay did not explain a significant portion of the overall variation in hospital admissions. The enrolled populations average travelling time to a 24-hour ED accounted for some of the practice variation in unplanned utilisation of hospital services. DISCUSSION: This study confirms that there is considerable unexplained practice variation in acute hospital use. Further development of the SAAR and SEAR measures may be possible to use these to identify modifiable practice-level factors associated with high unplanned hospital use. KEYWORDS: Access to health care; emergency medical services; general practice; health services needs and demand; hospital costs; patient admissions
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