Table 2 Odds ratios of COVID-19 infection and exposure to close contact in function of commuting time, Japan, nationwide-Internet-based health survey in workers, December 2020

 Using public transportation

3.89

2.37

6.40

<.001

4.17

2.51

6.93

<.001

 Commuting time

0.021

0.131

 Almost never

1

1

  < 30 min

2.52

1.21

5.24

0.014

2.38

1.13

4.98

0.022

  < 1 h

2.75

1.37

5.52

0.004

2.45

1.21

4.96

0.012

  < 2 h

2.15

1.02

4.55

0.046

1.76

0.82

3.79

0.146

  ≥ 2 h

2.21

0.90

5.36

0.082

1.72

0.69

4.29

0.247

 Using public transportation

1.93

1.37

2.72

<.001

1.988

1.399

2.824

<.001

 Commuting time

0.024

0.048

 Almost never

1

1

  < 30 min

1.62

0.98

2.66

0.058

1.56

0.94

2.57

0.083

  < 1 h

1.62

1.00

2.61

0.049

1.51

0.93

2.46

0.093

  < 2 h

1.31

0.78

2.20

0.311

1.25

0.74

2.13

0.402

  ≥ 2 h

1.98

1.14

3.42

0.015

1.92

1.09

3.40

0.024