Tornado diagram summarizing one-way sensitivity analyses on incremental
cost-effectiveness ratio (cost per quality-adjusted life years gained). Grey and
black bars denote the effects of the upper and lower bounds of each variable
input, respectively. That is, the upper bound may have differential effects on
the incremental cost-effectiveness ratio depending on the variable input.
Abbreviations: AF, atrial fibrillation; HF, heart failure; QALY,
quality-adjusted life year; RR, relative risk.