The universal zero markup drug policy and gastric cancer hospitalization expenses: an analysis of trends and influencing factors in Shanghai from 2014 to 2021

Table 3 The impact of the universal zero mark-up drug policy on changes in medical costs for GC patients

Source of Expenses	Effect of Pre-UZMDP		Immediate effect of Inter-UZMDP		Sustained effect of Post-UZMDP
Source of Expenses	Coefficient	*P value*	Coefficient	*P value*	Coefficient	*P value*
Hospitalization Expenses	72.69	0.040	−2900.01	0.059	199.04	0.029
Drug Expenses	−113.21	0.007	−1610.64	0.028	143.37	0.001
Consumable Expenses	64.76	0.058	−394.20	0.051	41.65	0.0236
Examination Expenses	101.3	< 0.001	−1051.07	< 0.001	−52.01	< 0.001
Healthcare Service Expenses	70.74	< 0.001	−328.9	0.222	−21.83	0.171

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