Table 5.

REE Using Different Devices and Locations

	Mean Difference (95% CI)	Absolute Differences Underpredicted (% Difference)	Absolulte Differences Overpredicted (% Difference)
HHRC in hospital room—HHRC in CRU	−72.4 (−185.3 to 40.5)	−132.5 ± 39.6 (n = 12) (−11.1 ± 3.7)	261.5 ± 63.1 (n = 13) (16.3 ± 4.1)
HHRC in hospital room—metabolic cart	−100.5 (−226.9 to 25.9)	−145.0 ± 38.8 (n = 11) (−11.0 ± 3.3)	293.4 ± 70.4 (n = 14) (17.6 ± 4.3)
HHRC in CRU—metabolic cart	−28.1 (−149.9 to 93.8)	−266.9 ± 47.1 (n = 10) (−19.1 ± 3.5)	224.7 ± 45.8 (n = 15) (13.5 ± 2.7)
HHRC in hospital room—Harris-Benedict	−258.4*** (−383.7 to −133.2)	−387.7 ± 46.6 (n = 19) (−31.0 ± 4.9)	151.0 ± 68.8 (n = 6) (8.2 ± 3.1)
HHRC in CRU—Harris-Benedict	−186.0* (−324.1 to −48.0)	−346.2 ± 51.4 (n = 18) (−25.6 ± 4.4)	225.8 ± 73.6 (n = 7) (11.4 ± 3.4)
Metabolic cart—Harris-Benedict	−158.0** (−261.6 to −54.3)	−312.1 ± 40.0 (n = 16) (−18.6 ± 2.5)	116.2 ± 31.4 (n = 9) (6.8 ± 1.8)
HHRC in hospital room—Mifflin	−191.3** (−309.5 to −73.1)	−333.3 ± 42.5 (n = 18) (−27.5 ± 4.8)	173.9 ± 52.8 (n = 7) (9.9 ± 2.2)
HHRC in CRU—Mifflin	−118.9 (−248.1 to 10.4)	−315.9 ± 40.2 (n = 16) (−23.9 ± 4.0)	231.3 ± 57.8 (n = 9) (12.4 ± 2.5)
Metabolic cart—Mifflin	−90.8 (−196.6 to 15.0)	−285.1 ± 35.9 (n = 14) (−21.1 ± 3.4)	156.5 ± 35.8 (n = 11) (9.3 ± 21.0)

Values presented as mean ± SEM. CRU, clinical research unit; HHRC, handheld respiratory calorimeter device; REE, resting energy expenditure in kcal/d.

^*P < .05.

^**P < .01.

^***P < .001.

P values correspond to paired t tests.