Effectiveness of a structured protocol for the prevention of acute respiratory tract infections in daycare centers: A quasi-experimental study

Figure 1  Study flow diagram of cluster allocation, follow-up, and analysis.

Figure 2  Weekly cumulative proportion of children with at least one respiratory tract infections episode in the intervention and control groups over the 25-week follow-up period.

Figure 3  Adjusted predicted mean incidence rates of respiratory tract infections in the intervention and control groups over the 25-week follow-up period, estimated from the multivariable Poisson regression model using marginal predictions.