. Author manuscript; available in PMC: 2016 Mar 31.

Published in final edited form as: J Ren Nutr. 2012 Jan 9;22(4):423–433. doi: 10.1053/j.jrn.2011.10.006

Table 4.

Results of Multivariable Regression Analyses on Physical Performance Measures

n = 26	Usual Gait Speed (cm/second)		Fast Gait Speed (cm/second)		6-Minute Walk (feet)		Sit-to-Stand Time (10 repetitions) (seconds)
Predictor Variable	Coefficient	P Value	Coefficient	P Value	Coefficient	P Value	Coefficient	P Value
1,25(OH)₂D serum level, pg/mL	0.74	.002	1.19	.02	8.93	.02	−0.25	.02
BMI, kg/m²	−2.25	<.001	−5.40	<.001	−36.06	<.001	0.704	.006
Intercept	172.42	–	307.67	–	2293.67	–	11.09	–
r	Overall r = 0.76 r² = 0.57		Overall r = 0.75 r² = 0.55		Overall r = 0.73 r² = 0.54		Overall r = 0.64 r² = 0.40
Significance of the model	P < .001		P < .001		P < .001		P = .003

1,25(OH)₂, 1,25-dihydroxyvitamin D; BMI, body mass index.