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. 2016 Apr 20;353:i1855. doi: 10.1136/bmj.i1855

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Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions

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graphic file with name kotd030418.f3_default.jpg — Fig 3 Kaplan-Meier event curves according to quarter of age distribution for primary outcome (all cause mortality) and major secondary outcome (admission for heart failure) for β blockers v placebo by age. ARR=absolute risk reduction; NNT=number needed to treat