Table 2 Relationship between confounding variables and CRF impairment

CRP

1.35(0.96,1.88)

0.079

HB

0.83(0.74,0.93)

0.001

WBC

1.11(1.06,1.16)

 < 0.001

PLT

1.00(1.00,1.01)

 < 0.001

PIR

0.95(0.89,1.01)

0.070

Education

 < High school

Ref

 High school

1.07(0.75,1.54)

0.690

 > High school

0.85(0.60,1.22)

0.377

Smoke

 No

Ref

 Yes

0.87(0.67,1.12)

0.263

Alcohol.user

 No

Ref

 Yes

0.80(0.52,1.24)

0.308

DM

 No

Ref

 Yes

2.37(1.18,4.79)

0.017

Hypertension

 No

Ref

 Yes

1.63(1.18,2.25)

0.004

CKD

 No

Ref

 Yes

0.70(0.46,1.06)

0.087

Hyperlipidemia

 No

Ref

 Yes

1.71(1.39,2.17)

 < 0.001

Obesity

 No

Ref

 Yes

2.32(1.83,2.94)

 < 0.001