Table 3.

Mean REE using different devices compared to Vmax.

Comparison Group	Mean kcal Difference (95% CI)	Lin’s Concordance Correlation Coefficient (ρC) (95% CI)	Mean Underpredicted kcal Differences (% difference)	Mean Overpredicted kcal Differences (% difference)
MedGem®–Vmax	−21.4 (−143.3–100.4)	0.80 (0.55–0.92)	−188.4 ± 110.8 (n = 7) (13%)	145.6 ± 138.2 (n = 7) (10%)
HBE–Vmax	−61.5 (−182.3–59.2)	0.56 (0.19–0.79)	−220.3 ± 112.2 (n = 8) (18%)	150.2 ± 44.9 (n = 6) (9%)
MSJ–Vmax	−92.6 (−223.6–38.4)	0.47 (0.07–0.75)	−261.1 ± 132.3 (n = 5) (20%)	132.1 ± 58.1 (n = 9) (8%)

Values presented as mean ± SD. Abbreviations: REE = resting energy expenditure; CI = confidence interval; HBE = Harris Benedict equation; MSJ = Mifflin St. Jeor equation.