Average duration presented a decreasing trend (APC = -0.0017, 95%CI -0.002– -0.0014).
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RESULTS Specialized care expenditure (APC = 0.059, 95%CI 0.041–0.074), number of medical professionals (APC = 0.0006, 95%CI 0.0003–0.0009) and nursing professionals (APC = 0.001, 95%CI 0.0005–0.0016), hospital infections (APC = 0.0003, 95%CI 0.0002–0.0004), and in-hospital mortality (APC = 0.0008, 95%CI 0.0006–0.001) had an increasing trend in Spain.
Trend estimation was based on the calculation of annual percentage change (APC) and its 95% confidence intervals (95%CI), using the Prais-Wisnten regression method for the analysis of time series, which allows us to obtain an overall trend for a given period 12 .