Table 1.

Characteristics for total cohort and by change in gait speed

	Total cohort N = 28		≥0.05m/s decrease in gait speed N = 11		<0.05m/s decrease in gait speed N = 17
	average	SD	average	SD	average	SD	P-value*
Age (years)	64.0	10.5	60.5	8.5	66.4	11.2	0.15
Race   White   Black   Other	14 (50%) 13 (46%) 1(4%)		3(27%) 7(64%) 1(9%)		11(65%) 6(35%) 0		0.08
Gender     Male   Female	20 (71%) 8 (29%)		8 (73%) 3 (27%)		12(71%) 5(29%)		1.00
Height (cm)	172.6	11.0	174.5	12.1	171.3	10.5	0.46
Weight (kilograms)	87.1	21.7	95.9	23.1	81.4	19.4	0.08
BMI	29.3	7.0	31.7	7.8	27.7	6.2	0.15
Dialysis vintage (years)	3.9	4.0	5.4	5.6	2.9	2.3	0.11
Diabetes	16 (57.1%)		8 (72.7)		8 (47.1)		0.25
HTN	24 (85.7%)		10 (90.9)		14 (82.4)		0.64
CHF	10 (35.7%)		5 (45.5)		5 (29.40		0.44
CAD	9 (32.1%)		3 (27.3)		6 (35.3)		0.70
PVD	4 (14.3)		2 (18.2)		2 (11.8)		1.00
Cirrhosis	2 (7.2)		0 (0)		2 (11.8)		0.51
Stroke	4 (14.3)		2 (18.2)		1 (11.8)		1.00
Serum Albumin	3.79	0.38	3.87	0.43	3.73	0.35	0.34
Serum hemoglobin	11.00	1.01	11.40	1.04	10.74	0.92	0.09
Kt/V	1.54	0.27	1.51	0.24	1.56	0.29	0.69
URR	76.00	5.08	75.10	3.51	76.56	5.90	0.49
Average Pre HD gait speed	0.76	0.21	0.77	0.22	0.76	0.21	0.92
Average post HD Gait speed	0.71	0.21	0.63	0.19	0.76	0.21	0.10
change in gait speed post HD	−0.06	0.08	−0.14	0.06	0.00	0.03	n/a
Falls Efficacy score	33.15	12.67	32.18	11.73	33.81	13.61	0.75

^*P-values are based on t-test for continuous variables and exact chi-square test for categorical variables.

BMI is body mass index, HTN is hypertension, CHF is congestive heart failure, CAD is coronary artery disease, PVD is peripheral vascular disease, Kt/V is a marker of dialysis clearance and URR is urea reduction ratio.