Table 2.

Change in nutritional parameters (BMI, serum albumin) over time among patients with NDD-CKD, by tertile of eGFR changea

Nutritional ParameterDeclining eGFRStable eGFRIncreasing eGFR
Mean (SD) BMI change, kg/m2 per yearb−0.3 (1.7)−0.2 (1.1)−0.4 (1.9)
Mean (SD) serum albumin change, g/dl per yearc−0.1 (5.6)−0.2 (6.5)−0.3 (7.0)
  • “Declining,” “stable,” and “increasing” eGFR groups refer to the lowest, middle, and upper tertiles of eGFR change, respectively. BMI, body mass index; eGFR, estimated glomerular filtration rate; IQR, interquartile range; NDD-CKD, non–dialysis-dependent chronic kidney disease.

  • a Median (IQR) number of BMI measurements was 19 (10 to 31), 22 (13 to 33), 16 (9 to 28) in the declining, stable, and increasing eGFR groups, respectively (P < 0.0001). Median (IQR) number of serum albumin measurements was 5 (2 to 9), 5 (2 to 9), and 4 (2 to 8) in the declining, stable, and increasing eGFR groups, respectively (P < 0.0001).

  • b P = 0.16 and <0.0001 for the comparison of BMI change in those with declining versus stable and increasing versus stable eGFR, respectively.

  • c P = 0.60 and <0.0001 for the comparison of serum albumin change in those with declining versus stable and increasing versus stable eGFR, respectively.