Association of Habitual Physical Activity Measured by an Accelerometer with High-Density Lipoprotein Cholesterol Levels in Maintenance Hemodialysis Patients
Table 3
Baseline characteristics in patients with < median physical activity and ≥ median physical activity.
All patients ()
Physical activity (steps/day)
P
< Median value ()
≥ Median value ()
Age, years
68 (62, 74)
70 (64, 75)
66 (61, 71)
0.04
Gender, women
58 (50.0%)
26 (44.8%)
32 (55.2%)
0.3
Body mass index, kg/m2
20.9 (19.1, 23.3)
20.3 (18.9, 24.2)
21.1 (19.5, 22.8)
0.7
Time on hemodialysis, months
66.5 (34.3, 150.8)
73.0 (34.3,147.0)
65.5 (33.5, 164.8)
0.9
Primary kidney disease, %
0.6
Diabetic nephropathy
41 (35.3%)
20 (34.5%)
21 (36.2%)
Glomerulonephritis
40 (34.5%)
19 (32.8%)
21 (36.2%)
Hypertension
6 (5.2%)
2 (3.4%)
4 (6.9%)
Polycystic renal disease
5 (4.3%)
4 (6.9%)
1 (1.7%)
Other nephropathies
11 (9.5%)
7 (12.1%)
4 (6.9%)
Unknown
13 (11.2%)
6 (10.3%)
7 (12.1%)
Comorbid condition, %
Presence of cardiac disease
31 (26.7%)
16 (27.6%)
15 (25.9%)
0.8
Presence of diabetes mellitus
57 (49.1%)
32 (55.2%)
25 (43.1%)
0.2
Comorbidity score
6.0 (3.3, 8.0)
6.0 (4.0, 8.0)
6.0 (3.0, 7.0)
0.5
Laboratory parameters
Albumin, g/dL
3.8 (3.6, 3.9)
3.8 (3.6, 3.9)
3.8 (3.6, 4.0)
0.8
Creatinine, mg/dL
10.2 (8.9, 11.4)
10.3 (8.7, 11.2)
10.2 (9.0, 11.6)
0.7
Hemoglobin, g/dL
11.1 (10.7, 11.9)
11.1 (10.7, 11.7)
11.2 (10.7, 11.9)
0.7
Hematocrit, %
33.2 (31.9, 34.9)
33.2 (31.5, 34.6)
33.3 (32.0, 35.4)
0.3
Phosphorus, mg/dL
5.0 (4.2, 5.7)
5.1 (4.3, 5.7)
5.0 (4.2, 5.6)
0.4
Calcium, mg/dL
8.7 (8.4, 9.2)
8.8 (8.5, 9.1)
8.6 (8.4, 9.2)
0.2
Intact PTH, pg/mL
104.0 (57.5, 184.0)
127.0 (69.5, 208.5)
85.5 (40.0, 165.8)
0.04
HDL-C, mg/dL
41.0 (32.0, 52.5)
37.0 (30.0, 47.0)
47.0 (38.0, 57.0)
0.001
LDL-C, mg/dL
88.0 (70.0, 108.5)
84.0 (65.5, 103.5)
91.5 (71.5, 115.0)
0.1
Triglycerides, mg/dL
119.0 (82.0, 159.5)
136.0 (92.5, 179.5)
112.5 (69.0, 143.3)
0.04
Medications, %
ACEI
6 (5.2%)
3 (5.2%)
3 (5.2%)
1.0
ARB
58 (50.0%)
34 (58.6%)
24 (41.4%)
0.06
CCB
52 (44.8)
26 (44.8%)
26 (44.8%)
1.0
Beta-blocker
32 (27.6%)
20 (34.5%)
12 (20.7%)
0.1
Lipid-modifier
12 (10.3%)
6 (10.3%)
6 (10.3%)
1.0
Smoking, %
0.7
Current
12 (10.3%)
7 (12.1%)
5 (8.6%)
Past
56 (48.3%)
27 (46.6%)
29 (50.0%)
Brinkman index
60.0 (0.0, 600.0)
225.0 (0.0, 787.5)
40.0 (0.0, 600)
0.5
Physical activity
Number of steps
3208 (1828, 4481)
1833 (1185, 2382)
4478 (3726, 6242)
<0.001
Values are expressed as median (25th, 75th percentiles) or number (percentage) of patients. Intact PTH: intact parathyroid hormone; HDL-C: high-density lipoprotein cholesterol; LDL-C: low-density lipoprotein cholesterol; ACEI: angiotensin converting enzyme inhibitor; ARB: angiotensin receptor blocker; CCB: calcium channel blocker.
