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Table 1 Study population descriptives

From: Leisure time computer use and overweight development in young adults – a prospective study

  Baseline study group Gaming >2 h per day Emailing/chatting >2 h per day
  Men Women   Men   Women   Men   Women  
  % % p a % p b % p b % p c % p c
Education    ***   ns   ns   ns   ns
 Elementary 7 7   10   9   8   7  
 Upper secondary 81 78   80   84   78   77  
 University 11 15   10   7   14   16  
Occupation    ***   ***   ***   ***   ns
 Working 55 43   48   36   45   41  
 Studying 36 44   34   33   38   44  
 Other 9 13   18   30   17   15  
  Sick leave 1 2   2   5   1   3  
  Parental/other leave 0 4   1   1   1   2  
  Unemployed 7 7   15   24   14   11  
Computer gaming    ***   -   -   ***   ***
 Not at all 47 77   -   -   30   66  
 <1 h per day 27 16   -   -   28   21  
 1–2 h per day 13 4   -   -   17   7  
 >2 h per day 12 2   -   -   25   6  
Emailing/chatting    *   ***   ***   -   -
 Not at all 10 8   8   5   -   -  
 <1 h per day 60 63   50   56   -   -  
 1–2 h per day 19 21   20   19   -   -  
  > 2 h per day 11 9   22   20   -   -  
Total computer use    ***   ***   ***   ***   ***
  < 2 h per day 28 39   2   4   0   2  
 2–4 h per day 35 34   19   25   16   24  
  > 4 h per day 37 27   78   71   84   74  
Physical activity    ***   ***   ***   **   ***
 Inactive 17 13   34   40   23   23  
 Light 34 46   34   44   36   43  
 Regular or vigorous 49 41   33   17   41   35  
Social support    ***   ns   *   *   ***
 Low 17 14   16   21   23   21  
 Medium 41 32   43   37   39   32  
 High 42 55   40   41   38   47  
BMI categories    ***   ***   **   *   ns
 Underweight 3 6   5   9   5   6  
 Normal 69 73   57   59   64   68  
 Overweight 24 16   31   22   27   18  
 Obesity 4 5   7   10   4   7  
  Mean (SD) Mean (SD) p a Mean (SD) p b Mean (SD) P b Mean (SD) P c Mean (SD) P c
Min-max Min-max Min-max Min-max Min-max Min-max
BMI 23.7 (3.4) 22.7 (3.8) *** 24.2 (4.1) * 24.1 (4.9) ** 23.5 (3.4) ns 23.2 (4.5) *
14.043.9 13.949.4 14.943.9 16.139.7 15.439.6 15.443.4
Sleep duration (hours/night) 7.7 (1.0) 7.8 (1.1) *** 7.7 (1.1) ns 7.9 (1.5) ns 7.8 (1.1) ns 7.6 (1.4) **
3.413.7 2.013.4 3.912.0 4.312.0 3.412.0 3.012.0
Age 22.1 (1.4) 22.0 (1.4) ns 21.9 (1.4) * 21.8 (1.3) ns 21.7 (1.4) *** 21.7 (1.4) ***
2024 2024 2024 2024 2024 2024
  1. The number of subjects varied due to partially missing data. Baseline study group: men n = 2612–2662, women n = 3966–4073. High gaming: men n = 319–325, women n = 96–99. High emailing/chatting: men n = 272–281, women n = 334–344
  2. P-values for differences in the demographic variables; asex, bhigh gaming versus the rest, chigh emailing/chatting versus the rest. * = p < 0.05, ** = p < 0.01, *** = p < 0.001