Variable

Unadjusted OR (95% CI)

p-value

Adjusted OR (95% CI)

p-value

Advanced age (>50 years)

2.6 (0.9 - 6.9)

0.05

3.6 (1.0 - 12.6)

0.04

Male Sex

1.4 (0.6 - 3.6)

0.37

Low education level

2. 0 (0.9 - 4.7)

0.09

2.6 (0.9 - 7.6)

0.08

Overweight

1.2 (0.4 - 3.6)

0.78

Obesity

2.2 (0.9 - 5.3)

0.09

2.2 (0.7 - 7.1)

0.20

Elevated pre-dialytic SBP

2.4 (0.9 - 6.0)

0.07

3.5 (1.1 - 11.3)

0.05

Elevated pre-dialytic DBP

1.6 (0.7 - 3.9)

0.28

Moderate or severe anemia

2.9 (1.2 - 7.0)

0.01

4.7 (1.5 - 14.4)

0.006

Elevated blood urea nitrogen

1.4 (0.4 - 5.7)

0.62

Short duration of HD (<7 month)

2.6 (1.1 - 6.1)

0.03

3.1 (1.0 - 9.1)

0.04

Hypoalbuminemia

1.3 (0.5 - 3.7)

0.59

Frequency of HD sessions per week

3.7 (0.8 - 17.6)

0.10

1.6 (0.2 - 10.5)

0.59

Dialyzer surface area

1.5 (0.7 - 3.5)

0.32

Blood flow rate > 300

3.2 (0.9 - 10.9)

0.05

3.7 (0.9 - 14.9)

0.07

Catheter type

Temporary

1.3 (0.4 - 4.2)

0.58

Permanent

1.2 (0.5 - 2.9)

0.65

Arterio-venous fistula

0.6 (0.2 - 1.7)

0.31