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Table 2 Risk of type 2 diabetes in adulthood according to screen-based sedentary behaviors at age 16

From: Do adolescent sedentary behavior levels predict type 2 diabetes risk in adulthood?

  N Person-years of follow-up Number of cases of type 2 diabetes Type 2 diabetes cases/10,000 person-years Hazard ratio (95% confidence interval) for type 2 diabetes
Model 1 Model 2 Model 3
Watching TV and videos
  ≤ 120 min/day 1857 49,910 36 7 1 1 1
 121–240 min/day 1404 38,012 27 7 0.99 (0.60, 1.63) 0.89 (0.54, 1.47) 0.89 (0.54, 1.47)
  > 240 min/day 681 17,768 28 16 2.31 (1.41, 3.78)* 2.01 (1.22, 3.32)* 2.06 (1.24, 3.43)*
Computer
 None 3606 96,920 80 8 1 1 1
 1–30 min/day 197 5128 6 12 1.43 (0.63, 3.29) 1.20 (0.52, 2.81) 1.21 (0.52, 2.84)
  > 30 min/day 139 3642 5 14 1.71 (0.69, 4.22) 1.26 (0.50, 3.16) 1.11 (0.44, 2.80)
Total screen time
  ≤ 120 min/day 1821 48,950 36 7 1 1 1
 121–240 min/day 1385 37,478 25 7 0.91 (0.55, 1.52) 0.83 (0.50, 1.39) 0.83 (0.49, 1.38)
  > 240 min/day 736 19,262 30 16 2.23 (1.37, 3.62)* 1.85 (1.13, 3.04)* 1.86 (1.13, 3.06)*
  1. Model 1 is unadjusted. Model 2 is adjusted for sex, BMI category, sugary beverage consumption, smoking status, physical activity at baseline and physical activity in adulthood. Ethnicity, parental education, fruit consumption, and takeout eating were removed during the stepwise elimination process. Model 3 is adjusted for Model 2 covariates plus the other sedentary behavior variables (e.g., watching TV and videos was adjusted for computer, reading, and homework)
  2. *P < 0.05