TABLE 3.

Regressions of percentage lean body mass on urinary potassium excretion¹

	β	P
Model 1 (unadjusted)
Potassium excretion (mmol/d)	0.077	<0.001
Model 2 (minimally adjusted)
Potassium excretion (mmol/d)	0.033	0.006
Sex (% male)	15.843	<0.001
Body weight (kg)	−0.377	<0.001
Nitrogen excretion (mmol/d)	0.002	0.048
Model 3 (fully adjusted)
Potassium excretion (mmol/d)	0.031	0.013
Sex (% male)	15.683	<0.001
Body weight (kg)	−0.368	<0.001
Nitrogen excretion (mmol/d)	0.001	0.342
Age (y)	0.054	0.271
Activity score	0.007	0.095
Creatinine clearance (mL/min)	0.022	0.085
25(OH)D (nmol/L)	<0.001	0.976
Diuretic use (yes)	−0.178	0.768

¹25(OH)D, 25-hydroxyvitamin D.