Table 3.
Adjusted mean difference comparing altTP to nlTP | |||
---|---|---|---|
Overall (n=5124 pt-yrs) | No self-reported appetite impairment (n=1367 pt-yrs) | With self-reported appetite impairment (n=3757 pt-yrs) | |
Normalized protein catabolic rate | −0.05 +/− 0.01 <0.001 |
−0.05 +/− 0.02 0.01 |
−0.04 +/− 0.01 <0.001 |
p-interaction=0.83 | |||
Reported caloric intake; kcal/kg/d | −0.54 +/− 0.31 0.08 |
−0.71 +/− 0.66 0.29 |
−0.33 +/− 0.33 0.32 |
p-interaction=0.43 | |||
Reported protein intake; g/kg/d | −0.04 +/− 0.01 0.006 |
−0.03 +/− 0.03 0.31 |
−0.03 +/− 0.01 0.04 |
p-interaction=0.90 | |||
Reported sodium intake; mg/day | −90 +/− 40 0.02 |
−150 +/− 80 0.05 |
−50 +/− 40 0.23 |
p-interaction=0.19 | |||
Interdialytic weight gain; kg | −0.04 +/− 0.04 0.38 |
+ 0.08 +/− 0.09 0.34 |
−0.05 +/− 0.05 0.32 |
p-interaction=0.26 | |||
Estimated dry weight; kg | −1.03 +/− 0.58 0.08 |
−0.48 +/− 1.16 0.68 |
−0.70 +/− 0.61 0.25 |
p-interaction=0.88 | |||
Midarm muscle circumference; cm | −0.28 +/− 0.14 0.05 |
−0.14 +/− 0.31 0.66 |
−0.23 +/− 0.15 0.14 |
p-interaction=0.93 | |||
Triceps skinfold thickness; mm | −0.68 +/− 0.44 0.12 |
−0.57 +/− 0.88 0.52 |
−0.43 +/− 0.46 0.35 |
p-interaction=0.91 | |||
Serum albumin; g/dL | −0.03 +/− 0.01 0.02 |
−0.05 +/− 0.02 0.04 |
−0.02 +/− 0.01 0.21 |
p-interaction=0.35 | |||
Serum creatinine; mg/dL | −0.22 +/− 0.08 0.009 |
−0.26 +/− 0.17 0.13 |
−0.10 +/− 0.09 0.27 |
p-interaction=0.30 | |||
Serum phosphorus; mg/dL | +0.05 +/− 0.06 0.44 |
+0.11 +/− 0.13 0.41 |
+0.05 +/− 0.07 0.49 |
p-interaction=0.61 | |||
Serum bicarbonate; mEq/L | +0.07 +/− 0.13 0.61 |
+0.03 +/− 0.27 0.91 |
−0.03 +/− 0.15 0.82 |
p-interaction=0.77 | |||
Serum intact PTH; pg/mL | −33 +/− 12 0.007 |
−1 +/− 25 0.97 |
−39 +/− 14 0.004 |
p-interaction=0.32 | |||
White blood count; K/uL | +0.09 +/− 0.08 0.26 |
−0.20 +/− 0.16 0.22 |
+0.16 +/− 0.09 0.07 |
p-interaction=0.03 | |||
Hematocrit; % | +0.14 +/− 0.14 0.35 |
+0.61 +/− 0.29 0.03 |
+0.10 +/− 0.16 0.55 |
p-interaction=0.10 | |||
Ferritin; ng/mL | +42 +/− 17 0.02 |
+14 +/− 27 0.56 |
+39 +/− 20 0.05 |
p-interaction=0.54 | |||
TIBC; ug/dL | −1.7 +/− 2.0 0.38 |
−0.2 +/− 3.8 0.96 |
−1.6 +/− 2.2 0.47 |
p-interaction=0.75 |
All analyses adjusted for age, sex, race, vintage, access type, and diabetes, congestive heart failure, ischemic heart disease, cerebrovascular disease, and peripheral vascular disease; variance estimates adjusted for within-subject clustering. Negative coefficients indicate a lower value for altTP relative to nlTP. P-interaction measures the significance of the difference in effect estimates between subjects with normal appetite versus those with impaired appetite.