CKD Stage | Measured Minus Predicted LM-Height-Z | Measured Minus Predicted FM-Height-Z | ||||||
---|---|---|---|---|---|---|---|---|

Males | Females | Males | Females | |||||

Predicted from BMI-age-z | Predicted from BMI-height-age-z | Predicted from BMI-age-z | Predicted from BMI-height-age-z | Predicted from BMI-age-z | Predicted from BMI-height-age-z | Predicted from BMI-age-z | Predicted from BMI-height-age-z | |

CKD stage 2–3 | 0.43 (0.13–0.74) | 0.41 (0.13–0.70) | 0.38 (0.01–0.75) | 0.25 (−0.11 to 0.60) | −0.14 (−0.40 to 0.13) | −0.16 (−0.43 to 0.12) | 0.16 (−0.14 to 0.46) | 0.01 (−0.27 to 0.30) |

CKD stage 4–5–dialysis | 0.41 (0.17–0.65) | 0.20 (−0.03 to 0.42) | 0.27 (−0.01 to 0.55) | −0.15 (−0.43 to 0.13) | 0.26 (0.05–0.46) | 0.03 (−0.18 to 0.24) | 0.50 (0.24–0.76) | 0.05 (−0.16 to 0.27) |

Each of LM-height-z and FM-height-z were predicted first from BMI-age-z, age, race, and study site. The predicted LM-height-z and FM-height-z were each subtracted from the corresponding measured values; the mean differences with 95% confidence intervals are presented. Then, BMI-height-age-z was substituted for BMI-age-z in the predictive equations to predict each of LM-height-z and FM-height-z. The BMI-height-age-z predicted LM-height-z and FM-height-z were each subtracted from the corresponding measured values; the mean differences with 95% confidence intervals are presented. Confidence intervals that do not include zero indicate statistically significant differences. LM, lean mass; FM, fat mass; BMI, body mass index.