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. 2017 Jan 9;7:40212. doi: 10.1038/srep40212

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Copyright © 2017, The Author(s)

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Cumulative mortality rate of all-cause according to quartile of cumRHR (a) and the number of visits with a higher RHR (b) estimating by Kaplan-Meier curve. cumRHR quartiles are as follows: Q1, <267.90; Q2, 267.90–292.84; Q3, 292.85–322.84; Q4, ≥322.85 (beats/min) * year. Higher RHR was defined as ≥80 beats/min. The number of visits with a higher RHR are as follows: never, at 1 study visit, at 2 study visits and at 3 study visits. Key: RHR, resting heat rate; CumRHR, cumulative resting heart rate exposure.