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EDITOR—The figure shows the forest plots of the hazard ratios and 95% confidence intervals. The forest plots were removed during revision for reasons of space. Fig 1 Hazard ratios and 95% confidence intervals for individual studies for effect of exercise training on risk of death and on risk of death and admission to hospital (full data available on bmj.com>) As Metcalfe observes, in one fairly …
Piepoli et al. (Thu,) studied this question.