Scatter plot of estimated joint density of incremental costs and incremental effects (quality-adjusted life years (EuroQol five-dimension questionnaire, EQ-5D)) of chiropractic care versus self-management obtained by bootstrap resampling. Scatter plot of estimated joint density of incremental costs and incremental effects (quality-adjusted life years (EuroQol five-dimension questionnaire, EQ-5D)) of chiropractic care versus self-management obtained by bootstrap resampling. Mette Jensen Stochkendahl et al. Open Heart 2016;3:e000334 ©2016 by British Cardiovascular Society