I haven’t seen all the comments on this post nor kept up with the different versions, but: have you considered doing an analysis with added information as how long into the flu season the person is? That is, the likelihood of my getting the flu this year goes down as time goes on, while the costs of getting the shot remain constant: at which point would the costs outweigh the gains?
I haven’t seen all the comments on this post nor kept up with the different versions, but: have you considered doing an analysis with added information as how long into the flu season the person is? That is, the likelihood of my getting the flu this year goes down as time goes on, while the costs of getting the shot remain constant: at which point would the costs outweigh the gains?