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Table 2 Regression coefficients, standard errors, and P-values from the multiple regression analysis type of segmented regression analysis of interrupted time series for models 2(medical service expenses as the dependent variable)

From: Impacts of the zero mark-up drug policy on hospitalization expenses of COPD inpatients in Sichuan province, western China: an interrupted time series analysis

 coefficientsrobust std. errortsig95% Conf. Interval
β1−14.933.46− 4.320.000− 21.92152−7.92853