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Table 1 Description of base case and scenario analyses

From: Cost-effectiveness of introducing national seasonal influenza vaccination for adults aged 60 years and above in mainland China: a modelling analysis

AnalysesInfluenza-related ILI consultation [28]Influenza-associated excess mortality attributable to respiratory diseases [12]
Base caseUsed original rate as reported for each province in the literatureUsed original rate as reported for each province in the literature
Scenario 1Used original rate as reported for each province in the literature, and assumed the difference between any other province and Shanghai is due to difference in health care access (i.e., “health care access” hypothesis)Assumed every province has the same risk as Gansu Province, with the highest rate of 83.2/100,000
Scenario 2Assumed every province has the same risk as Shanghai, with the highest rate of 690/100,000Assumed every province has the same risk as Gansu Province, with the highest rate of 83.2/100,000
Scenario 3Used original rate as reported for each province in the literature, and assumed the difference between any other province and Shanghai is due to difference in health care access (i.e., “health care access” hypothesis)Used original rate as reported for each province in the literature
Scenario 4Assumed every province has the same risk as Shanghai, with the highest rate of 690/100,000Used original rate as reported for each province in the literature