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Figure 1 Kaplan-Meier survival curves using both PkVO₂ of 14 ml/kg/min and PkVO₂ lean of 19 ml/kg/min as cutoffs showing a stronger prognostic value to the fat-adjusted PkVO₂ by log-rank testing. PkVO₂ = peak oxygen consumption; PkVO₂ lean = peak oxygen consumption adjusted to lean body mass; VO₂ = oxygen consumption.