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

BMC Public Health

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

	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
	N	Person-years of follow-up	Number of cases of type 2 diabetes	Type 2 diabetes cases/10,000 person-years	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)*

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)
*P < 0.05

ISSN: 1471-2458