Table 2 Attributes and attribute levels for hypothetical COVID-19 vaccines.

From: Public attitudes toward COVID-19 vaccination: The role of vaccine attributes, incentives, and misinformation

Vaccine attributes

Levels

Efficacy

50%

70%

90%

Risk of mild side effects (fever, headaches, muscle pain)

1 in 2

1 in 4

1 in 10

Vaccine approval

Full FDA approval

Emergency Use Authorization

Manufacturer

AstraZeneca

Pfizer

Moderna

Johnson and Johnson

Cost or financial incentive

You pay: $20 co-pay

Free

You receive: $10 incentive

You receive: $100 incentive

  1. Note: Full text of the Full FDA approval and Emergency Use Authorization treatments are provided in the Supporting Information.
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