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PICO
Question: Among parents, do informational messages encouraging vaccination increase the intent to vaccinate children against measles, mumps, and rubella compared to no informational messages?
Question type: Therapy
Study design: Randomized controlled
Investigators from multiple institutions conducted a randomized controlled trial to assess the effects of informational campaigns on perceptions surrounding measles-mumpsrubella (MMR) vaccination. For the study, parents of children <18 years old who were members of an online panel were recruited using random digit dialing from a population probability sample representative of the US population. Parents were first surveyed regarding the baseline health status of their child and vaccine attitudes. Those who responded to the first survey were then randomized to 1 of 5 groups: Group …
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