Cost–effectiveness analysis of pandemic influenza preparedness: what’s missing?

gies. 3 Although the first of these was published in 1999, the majority (75%) were published from 2009 onwards. Perez Velasco et al. evaluated these 44 studies against a checklist of standard practices in the field of economic evaluation, but their stated aim was to summarize the literature and offer policy recommendations rather than to examine methodological approaches. In 2009, Lugner & Postma conducted a review of 12 economic evaluations and recommended using dynamic rather than static transmission modelling in economic evaluations of pandemic influenza preparedness strategies.