Table 2 Change of each variable during three phases.

From: A 2-year longitudinal study examining the change in psychosocial factors under the COVID-19 pandemic in Japan

 

Phase 1

Phase 2

Phase 3

F

p

η2

Mean (SD)

Mean (SD)

Mean (SD)

K6

5.1

(5.3)

4.0

(5.2)

3.9

(5.4)

167.66

<0.001

0.041

PHQ-9

4.4

(5.4)

3.9

(5.4)

3.8

(5.4)

44.05

<0.001

0.011

UCLA-LS3

23.6

(5.8)

24.0

(5.9)

23.9

(6.0)

21.48

<0.001

0.005

LSNS-6

10.0

(6.1)

9.4

(6.0)

9.3

(6.0)

42.94

<0.001

0.011

SHS

4.4

(1.0)

4.3

(1.0)

4.4

(1.1)

29.81

<0.001

0.008

SSS-8

6.3

(5.5)

5.1

(5.5)

5.1

(5.5)

187.41

<0.001

0.046

AUDIT *

 

4.4

(6.1)

4.4

(5.8)

0.67

0.501

0.011

Exercise

4.1

(1.8)

3.8

(1.9)

3.8

(1.9)

95.75

<0.001

0.024

Healthy eating habits

4.3

(1.5)

4.2

(1.6)

4.2

(1.6)

19.89

<0.001

0.005

Healthy sleep habits

4.7

(1.7)

4.7

(1.7)

4.8

(1.7)

2.21

0.111

0.001

Favorite activity

4.0

(1.6)

3.7

(1.7)

3.8

(1.7)

53.23

<0.001

0.013

Offline interaction with familiar people

3.5

(1.8)

3.3

(1.8)

3.9

(1.8)

177.67

<0.001

0.044

Online interaction with familiar people

3.1

(1.9)

2.7

(1.7)

2.8

(1.8)

90.16

<0.001

0.023

Altruistic preventive behavior

5.4

(1.7)

5.4

(1.7)

5.4

(1.7)

3.89

0.021

0.001

Optimism

4.0

(1.5)

4.2

(1.5)

4.3

(1.5)

69.17

<0.001

0.017

Deterioration of household economy

3.7

(1.8)

3.5

(1.7)

3.5

(1.7)

35.68

<0.001

0.009

Deterioration of relationship with familiar people

2.4

(1.5)

2.6

(1.6)

2.6

(1.5)

61.53

<0.001

0.016

Frustration

3.2

(1.7)

3.2

(1.7)

3.1

(1.7)

4.43

0.035

0.001

COVID-19-related anxiety

3.9

(1.7)

3.4

(1.7)

3.2

(1.6)

324.70

<0.001

0.077

COVID-19-related sleeplessness

2.5

(1.5)

2.5

(1.5)

2.4

(1.5)

5.58

0.004

0.001

Difficulties owing to the lack of daily necessities

3.5

(1.8)

2.5

(1.5)

2.5

(1.5)

684.09

<0.001

0.150

Difficulties in work or schoolwork

3.6

(2.0)

2.8

(1.7)

2.7

(1.7)

465.29

<0.001

0.107

  1. * Because the paired-samples t test was applied for the AUDIT, t value and Cohen’s d were provided as the effect size.