Research Article

Energy Requirement of Patients Undergoing Hemodialysis: A Cross-Sectional Study in Multiple Centers

Table 5

Summary of limits of agreement, Pitman’s test of difference, bias, and precision for the predicted energy expenditure (by each equation) and measured energy expenditure (by indirect calorimetry) in hemodialysis patients, stratified by weight category and sex.1.

CategoryLimits of agreement (kcal/day)Pitman’s test of difference in variance (r)Bias (kcal/day)2% precision

Harris–Benedict3All−444∼1060−0.21282 (264, 300)24
Men−444∼1060−0.22317 (292, 342)21
Women−99∼571−0.61231 (209, 254)29
BMI ≤ 24 kg/m2−444∼756−0.45242 (221, 263)28
Men−444∼756−0.47261 (233, 290)24
Women−99∼528−0.79216 (187, 245)33
BMI > 24 kg/m2−91∼1060−0.24344 (313, 374)18
Men−71∼1060−0.31397 (355, 440)16
Women−91∼571−0.73257 (222, 292)22

Schofield3All−431∼1122−0.14367 (348, 386)14
Men−431∼1122−0.20423 (396, 449)10
Women−117∼634−0.64288 (265, 310)21
BMI ≤ 24 kg/m2−431∼780−0.25338 (315, 361)14
Men−431∼780−0.31382 (350, 415)7
Women−36∼598−0.76278 (250, 306)23
BMI > 24 kg/m2−117∼1122−0.18414 (381, 446)15
Men22∼1122−0.28482 (438, 525)14
Women−117∼634−0.76304 (266, 343)17

K/DOQI4All−920∼18400.04369 (300, 437)26
Men−920∼1840−0.04411 (314, 508)29
Women−378∼11370.07307 (216, 399)22
BMI ≤ 24 kg/m2−920∼957−0.34207 (134, 280)34
Men−920∼957−0.43240 (135, 346)37
Women−378∼705−0.51162 (64, 261)30
BMI > 24 kg/m2−152∼1840−0.17574 (515, 729)13
Men−232∼1840−0.22660 (505, 816)16
Women41∼1137−0.21560 (427, 693)9

1Limits of agreement: range of differences between predicted total energy expenditure (TEE) (by equation) and measured energy expenditure (by indirect calorimetry), Bias: difference between predicted energy expenditure (by equation) and measured energy expenditure (by indirect calorimetry), and % Precision: percentage of cases where the predicted energy expenditure (by equation) was 90%–110% of the measured energy expenditure (by indirect calorimetry).2 Mean (95% confidence interval).3 Compared with the measured resting energy expenditure (by indirect calorimetry).4 Compared with the measured total energy expenditure (by indirect calorimetry). .