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. Author manuscript; available in PMC: 2016 Feb 26.
Published in final edited form as: Am J Cardiol. 2009 Jun 18;104(4):554–558. doi: 10.1016/j.amjcard.2009.04.022

Table 4.

Relative risks associated with peak VO2 and age-predicted peak O2 pulse responses.

Variable Cardiac
Mortality
HR (95% CI)		 P
value		 %
Survival		 Major Events
HR (95% CI)		 P
value		 %
Event
free
Peak VO2 ≥ 14.3 1 (reference) - 77% 1 (reference) - 85%
Peak VO2 > 10.1 < 14.3 and Predicted Peak O2 pulse ≥ 85 % 1.18 (0.56 – 2.51) 0.66 77% 1.38 (0.84 – 2.24) 0.19 78%
Peak VO2 > 10.1 < 14.3 and Predicted Peak O2 pulse < 85 % 2.56 (1.69 – 3.88) <0.001 57% 2.82 (2.02 – 3.93) <0.001 60%
Peak VO2 ≤ 10 2.98 (1.88 – 4.72) <0.001 60% 3.94 (2.77 – 5.60) <0.001 57%

Peak VO2 is expressed in mL․kg−1․min−1