Fig. 4
From: Fast and accurate dynamic estimation of field effectiveness of meningococcal vaccines
Comparing MCML and the screening method for Bexsero. Confidence intervals around four hypothetical values of VEdir=60 % (a), 70 % (b), 80 % (c), and 90 % (d) for the Bexsero immunization campaign in England, as a function of years required to obtain the precision. The shaded red area indicates the predicted CI produced by the MCML method. The shaded gray area indicates the predicted CI obtained with the screening method power analysis. CI confidence interval, MCML Monte Carlo maximum likelihood