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. Author manuscript; available in PMC: 2010 Oct 13.
Published in final edited form as: Circ Heart Fail. 2010 Mar 3;3(3):405–411. doi: 10.1161/CIRCHEARTFAILURE.109.906446

Table 2.

CPX Data

Overall
Group
(n=791)
No Events
(n=560)
0–6 Months
(n=76)
6–12
Months
(n=51)
12–18
Months
(n=39)
18–24
Months
(n=30)
24–30
Months
(n=20)
30–36
Months
(n=15)
Peak VO2, ml• kg−1•min−1 16.0 ±6.4 17.4 ±6.6a 11.4 ±3.7 13.1 ±4.7 12.9 ±4.1 12.4 ±4.4 15.2 ±4.3 14.9 ±4.6
VE/VCO2 slope 35.0 ±10.0 32.2 ±10.0b 45.6 ±12.1c 39.7 ±8.8 39.9 ±12.0 40.2 ±11.4 41.1 ±9.8 36.1 ±3.4
Peak RER 1.09 ±0.17 1.09 ±0.17 1.08 ±0.18 1.13 ±0.19 1.08 ±0.13 1.06 ±0.11 1.07 ±0.12 1.12 ±0.18
a

Peak VO2: no event group greater than 0–6, 6–12, 12–18 and 18–24 event groups (p<0.001)

b

The VE/VCO2 slope: no event group less than 0–6, 6–12, 12–18, 18–24 and 24–30 event groups (p<0.001)

c

The VE/VCO2 slope: 0–6 month greater than 6–12, 12–18 and 30–36 month event groups (p<0.05)