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Table 2 Four conditional logistic regression model results

From: Transmission of SARS-CoV-2 considering shared chairs in outpatient dialysis: a real-world case-control study

 

Model 1

Model 2

Model 3

Model 4

 

OR (95 % CI)

p-value

OR (95 % CI)

p-value

OR (95 % CI)

p-value

OR (95 % CI)

p-value

Exposed

0.94 (0.57, 1.54)

0.7995

0.92 (0.56, 1.52)

0.7435

0.90 (0.54, 1.50)

0.6900

0.90 (0.54, 1.50)

0.6893

Age at Start (yr)

  

1.01 (1.00, 1.01)

0.0495

1.01 (1.00, 1.02)

0.0285

1.01 (1.00, 1.02)

0.0290

Vintage at Start (yr)

  

1.02 (1.01, 1.04)

0.0050

1.03 (1.01, 1.04)

0.0007

1.03 (1.01, 1.04)

0.0008

Male

  

1.03 (0.91, 1.17)

0.6054

1.05 (0.93, 1.19)

0.4177

1.05 (0.93, 1.19)

0.4207

Race is Black (Reference)

  

1

 

1

 

1

 

Race is Other

  

0.98 (0.68, 1.41)

0.9149

1.07 (0.74, 1.55)

0.7133

1.08 (0.74, 1.56)

0.6903

Race is Unknown

  

1.16 (0.97, 1.39)

0.1021

1.18 (0.98, 1.42)

0.0777

1.18 (0.98, 1.42)

0.0776

Race is White

  

1.05 (0.89, 1.23)

0.5687

1.05 (0.90, 1.24)

0.5219

1.06 (0.90, 1.24)

0.4997

BMI

    

1.01 (1.01, 1.02)

0.0010

1.01 (1.01, 1.02)

0.0009

CVC

    

1.21 (1.03, 1.42)

0.0186

1.21 (1.03, 1.42)

0.0205

Ever Diabetes

    

1.30 (1.15, 1.47)

< 10− 4

1.29 (1.15, 1.46)

< 10− 4

Ever COPD

    

0.99 (0.80, 1.22)

0.9247

0.99 (0.80, 1.22)

0.9194

Five Year Median HH Income (per 1,000$)

      

1.00 (1.00, 1.00)

0.8314

Five Year Gini Coefficient (0 to 1)

      

2.84 (0.11, 70.90)

0.5256

  1. BMI Body mass index; CVC central venous catheter; COPD chronic obstructive pulmonary disease; HH household; yr year; CI confidence interval