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Table 2 Exposure and outcome variables at baseline, 1-, and 5 year follow-ups

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

  Men Women
  Baseline n = 952–957 1 year n = 745–749 5 year n = 953–957 Baseline n = 1622–1636 1 year n = 1352–1356 5 year n = 1629–1636
Computer gaming %    1)    1)
 Not at all 45 46 35 74 75 51
  < 1 h per day 29 29 39 18 18 37
 1–2 h per day 13 15 16 5 4 7
  > 2 h per day 13 10 11 3 3 5
Emailing/chatting %    1)    1)
 Not at all 7 5 4 5 3 1
  < 1 h per day 62 64 53 66 69 44
 1–2 h per day 20 20 27 20 20 37
  > 2 h per day 10 11 17 9 8 18
BMI categories %       
 Underweight 3 3 2 6 6 3
 Normal weight 71 70 61 75 73 70
 Overweight 22 23 31 14 15 19
 Obesity 4 3 7 5 6 8
BMI Mean (SD) 23.4 (3.3) 23.6 (3.1) 24.5 (3.6) 22.7 (3.7) 22.9 (3.8) 23.7 (4.2)
  1. Respondents that remained at 5-year follow-up. The number of subjects varied due to partially missing data
  2. 1) Note: In the 5-year follow-up questionnaire, the gaming and email/chatting items also included the use of mobile phones and tablets, i.e. were no longer restricted to the use of computers