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Table 3 Regression coefficients, standard errors, and P-values from the multiple regression analysis type of segmented regression analysis of interrupted time series for models 3 (diagnosis 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
β2−310.78114.85− 2.710.010− 543.2738−78.28034
β3−35.609.85−3.610.001− 55.54324−15.64707