Table 1 Descriptive statistics of the final and the dropout samples.

From: COVID-19 school and kindergarten closure relates to children's social relationships: a longitudinal study in Japan

 

Primary survey (T1 to T2)

Follow-up survey (T2 to T3)a

Final sample (n = 425)

Dropout sample (n = 275)

Remaining sample (n = 130)

Dropout sample (n = 130)

Parent/family measure

Age

38.00 (6.04)

37.39 (6.43)

39.88 (4.63)

41.15 (5.81)

Number of family members

3.92 (1.03)

3.89 (1.04)

3.95 (0.97)

4.11 (1.07)

Education levelb

3 (1)

3 (2)

3(1)

3(2)

Ratio of female

93.6%

85.1%

93.8%

90.8%

Child measure

Age in months

60.92 (34.91)

58.34 (34.51)

80.57 (18.26)

88.40 (22.58)

Ratio of female

51.1%

48.5%

56.9%

47.7%

  1. For most variables, the mean (standard deviation) is shown. The median (interquartile range) for parents’ education level is shown.
  2. aThe follow-up survey only consisted of preschoolers and schoolers.
  3. bEducation level was a selective item graded from 1 (less than high school) to 5 (graduate level).
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