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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

Analyses

Influenza-related ILI consultation [28]

Influenza-associated excess mortality attributable to respiratory diseases [12]

Base case

Used original rate as reported for each province in the literature

Used original rate as reported for each province in the literature

Scenario 1

Used 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 2

Assumed every province has the same risk as Shanghai, with the highest rate of 690/100,000

Assumed every province has the same risk as Gansu Province, with the highest rate of 83.2/100,000

Scenario 3

Used 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 4

Assumed every province has the same risk as Shanghai, with the highest rate of 690/100,000

Used original rate as reported for each province in the literature