Changes in number and rates of hospital admissions for diarrhea due to all causes among children <5 y by December, 2009, Brazil.

aObserved number of hospital admissions are annual means for 2007–2009; observed rates are estimated annual rates for 2007–2009 from the regression model.bExpected in the absence of vaccination on the basis of 2002–2005 data, adjusting for seasonality and secular trends.cCalculated as 1 − RR of diarrhea deaths post-vaccine compared to the pre-vaccine era from Poisson regression models, adjusting for seasonality and secular trends.