Figure 2. Random-Effects Model of Rotavirus Vaccine Protection against Rotavirus Gastroenteritis (RVGE) and RVGE Hospitalization, by Country Income Level, in Case-Control Studies.

HIC indicates high-income countries; LIC, low-income countries; LLR, Lanzhou lamb rotavirus; MIC, middle-income countries; OR, odds ratio; RV1, monovalent rotavirus vaccine; RV5, pentavalent rotavirus vaccine.