Table 2 Bland-Altman limit analysis for comparison between the VH_MC and RMR_WRIC for ethanol and propane combustion along with subject metabolic testing

Ethanol Vs. VH_MC¹

RMR³ (kcal/d)

337.6 ± 192.6

2.7 - 672.5

−47.6 - 722.8

<0.01

RQ⁴ (VO₂/VCO₂)

0.01 ± 0.01

0.00 - 0.02

0.00 - 0.020

NS

VO₂  ⁵ (l/day)

45.0 ± 35.6

0.2 - 89.8

−26.2 - 116.2

<0.01

VCO₂  ⁶ (l/day)

32.1 ± 23.9

0.2 - 64.0

−15.7 - 79.9

<0.01

Propane vs.² RMR_WRIC

RMR (kcal/d)

68.7 ± 72.8

−0.3 - 137.7

−76.9 - 214.3

NS

RQ (VO₂/VCO₂)

−0.01 ± 0.01

0.00 - 0.02

−0.030 - 0.010

NS

VO₂ (l/day)

7.49 ± 15.90

0.00 - 15.00

−24.31 - 39.29

NS

VCO₂ (l/day)

−3.38 ± 12.00

−6.80 - 0.00

−27.38 - 20.62

NS

VH_MC vs. RMR_WRIC⁸

RMR (kcal/d)

194.9 ± 170.2

1.20 - 388.6

−145.5 - 535.3

<0.01

RQ (VO₂/VCO₂)

0.02 ± 0.05

0.00 - 0.04

−0.08 - 0.12

NS

VO₂ (l/day)

−44.20 ± 41.90

−88.4 - 0.00

−128.00 - 39.6

<0.05

VCO₂ (l/day)

−35.30 ± 30.64

−70.3 - -0.30

−96.5 - 25.90

<0.01