Table 4 Results of interaction factors associated with handwashing ^{a, b}

Year

 2013

1.00

1.00

1.00

1.00

1.00

 2015

0.82

(0.81

–

0.83)

0.83

(0.81

–

0.84)

0.76

(0.74

–

0.78)

0.63

(0.62

–

0.64)

0.81

(0.80

–

0.82)

 2017

0.83

(0.82

–

0.84)

0.81

(0.80

–

0.83)

0.80

(0.78

–

0.82)

0.67

(0.66

–

0.68)

0.80

(0.79

–

0.82)

 2019

0.89

(0.87

–

0.90)

0.76

(0.75

–

0.78)

0.79

(0.77

–

0.81)

0.74

(0.73

–

0.76)

0.80

(0.78

–

0.81)

 2020

2.18

(2.15

–

2.21)

2.34

(2.28

–

2.40)

2.75

(2.66

–

2.84)

4.95

(4.79

–

5.12)

2.69

(2.63

–

2.74)

Self-perceived health status

 Bad

1.00

1.00

1.00

1.00

1.00

 Good

1.13

(1.12

–

1.13)

1.20

(1.19

–

1.22)

1.16

(1.15

–

1.17)

1.16

(1.15

–

1.17)

1.10

(1.09

–

1.11)

Year x Self-perceived health status

 2013 × Bad

1.00

1.00

1.00

1.00

1.00

 2015 × Good

0.98

(0.97

–

0.99)

0.97

(0.96

–

0.99)

0.95

(0.93

–

0.97)

0.95

(0.94

–

0.97)

0.98

(0.97

–

1.00)

 2017 × Good

0.99

(0.98

–

1.00)

0.98

(0.96

–

0.99)

0.98

(0.96

–

1.00)

0.97

(0.95

–

0.98)

0.98

(0.97

–

0.99)

 2019 × Good

1.00

(0.99

–

1.01)

0.99

(0.97

–

1.01)

0.97

(0.95

–

0.99)

0.98

(0.96

–

1.00)

0.98

(0.97

–

1.00)

 2020 × Good

1.01

(1.00

–

1.02)

1.08

(1.06

–

1.10)

1.09

(1.06

–

1.13)

1.11

(1.08

–

1.15)

1.05

(1.03

–

1.07)