Table 3.

Association of protein intake (per 10 g/d increment) with Quality of Life.

	PCS		MCS
	β (95% CI)	p-Value	β (95% CI)	p-Value
Crude	0.74 (0.39–1.09)	<0.001	0.36 (0.06–0.66)	0.02
Model 1	0.97 (0.60–1.34)	<0.001	0.25 (−0.09–0.59)	0.15
Model 2	0.97 (0.60–1.34)	<0.001	0.30 (−0.04–0.64)	0.09
Model 3	0.83 (0.46–1.21)	<0.001	0.25 (−0.10–0.59)	0.16
Model 4	0.74 (0.36–1.12)	<0.001	0.23 (−0.12–0.58)	0.20
Model 5	0.65 (0.24–1.06)	0.002	0.26 (−0.12–0.64)	0.19
Model 6	0.64 (0.23–1.05)	0.002	0.26 (−0.12–0.65)	0.18

Abbreviations: 95% CI: 95% confidence interval; g/d: grams per day; g/kg/day: grams per kilogram per day; MCS: Mental component summary score; PCS: Physical component summary score. Model 1: adjusted for age, sex, BMI. Model 2: adjusted for model 1 variables plus eGFR, proteinuria and primary kidney disease. Model 3: adjusted for model 2 variables plus time after transplantation, pre-emptive transplantation, living kidney donor, mycophenolic acid use, cyclosporin use and history of combined organ transplantation. Model 4: adjusted for model 3 variables plus diabetes, systolic blood pressure and cholesterol and statin use. Model 5: adjusted for model 4 variables plus hemoglobin, ferritin, vitamin B12, albumin, C-reactive protein. Model 6: adjusted for model 5 variables plus smoking status, alcohol use and level of education.