Table 1 Demographic characteristics of the study population (n = 80).

From: Children’s screen time alters the expression of saliva extracellular miR-222 and miR-146a

 

Mean (SD) or n (%)

Boys

37 (46.3%)

Age, yrs

10.44 (0.97)

BMI, kg/m² a

17.01 (2.42)

  Underweight

14 (17.5%)

  Normal weight

56 (70%)

  Overweight

10 (12.5%)

Passive smoking

9 (11.3%)

Maternal level of education

  Up to high school diploma

26 (32.5%)

  College or university diploma

54 (67.5%)

Caucasian

73 (91.3%)

TV screen use, hours per week

9.32 (5.46)

Computer screen use, hours per weekb

4.77 (3.65)

Total screen use, hours per weekb

14.11 (6.93)

Physical activityc

  None

7 (9%)

  Low

33 (42.3%)

  Middle

21 (26.9%)

  High

17 (21.8%)

  1. aBMI categorization based on age and gender specific children’s growth curves for Flanders 2004; bn = 77 (included in the analysis); clow: ≤3 hours, middle: >3 and <6 hours per week, high: ≥6 hours per week, n = 78.
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