Carnitine deficiency is associated with decreased exercise activity in hemodialysis patients

Table 3 Univariate and multiple stepwise regression analysis for the knee extension strength

Variables	Univariate			Multiple stepwise regression
Variables	β	SE	P value	β	SE	P value
Age	− .111	− .122	0.513
Sex	− .530	2.80	0.001	− .397	2.448	< 0.0001
BMI	.071	.409	0.675
HD duration	.119	.024	0.483
Hemoglobin	.082	1.048	0.630
Serum albumin	.054	6.825	0.755
AST	− .038	.214	0.821
ALT	.052	.223	0.760
BUN	.259	.111	0.122
Serum Cr	.599	.556	< 0.0001	.599	.556	< 0.0001
Uric acid	.223	1.017	0.185
Corrected Ca	.229	2.641	0.173
Phosphate	.233	1.200	0.165
Total chol	− .068	.055	0.688
HDL-chol	.064	.121	0.707
LDL-chol	.021	.077	0.903
Triglycerides	− .241	.017	0.151
CRP	− .105	5.593	0.534
Whole PTH	.187	.017	0.269
NT-pro BNP	− .013	.000	0.434
Free carnitine	.359	.209	0.029
Kt/V	− .359	4.383	0.029

β standardized regression coefficients, SE standard error. r² = 0.506
BMI body mass index, HD hemodialysis, ALT alanine amino transferase, AST aspartate transaminase, Cr creatinine, Ca calcium, HDL-chol high-density lipoprotein cholesterol, LDL-chol low-density lipoprotein cholesterol, CRP C-reactive protein, Whole PTH whole parathyroid hormone, NT-pro BNP N-terminal pro B-type natriuretic peptide

ISSN: 2059-1381