RESUMO
OBJECTIVE: The aim of the present study is to describe the trend in volume and age-specific rates in visits to the Paediatric Emergency Department of a university teaching hospital in Cantabria (Spain) from January 2001 to December 2013, and evaluate the influence of population growth on Emergency Department use. MATERIAL AND METHODS: A retrospective study was conducted in which an analysis was made on all Emergency Department visits over a 13 year period. Simple and polynomial linear regressions were used to assess the relationship between population size and Emergency Department attendance rates across 2 age groups (0-2 and 3-14 years). RESULTS: From 2001 to 2013, attendance in the Emergency Department increased by 14.1%, whereas the paediatric population rose by 26.3%. Rates of presentation per head of population were greatest among those aged<3 years: 1.48 (95% CI 1.40-1.56) vs. 0.46 (95% CI 0.44-0.48) for the older age group (P<.01). A significant regression equation was found (F[1, 11]=11.2, P<.05) with an R2=0.50, showing that population growth produces a continuous rise in the Emergency Department visits for those aged<3 years. However, ED presentations of patients aged 3-14 years fit a quadratic regression model (R2=0.48, F[2, 10]=4.6, P<.05) so increases in population increase ED presentations until an inflection point, after which increases in population will decrease ED visits. CONCLUSIONS: Those aged 0-2 years presented a steady increase in ED visits related to population growth, whereas children aged 3-14 years experienced a "saturation of the demand" and a reduction in ED presentations.