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 | |||||
Homework | |||||||
None | 2512 | 67,060 | 59 | 9 | 1 | 1 | 1 |
1–30 min/day | 373 | 10,022 | 9 | 9 | 1.01 (0.50, 2.04) | 1.12 (0.55, 2.26) | 1.13 (0.56, 2.31) |
> 30 min/day | 1057 | 28,608 | 23 | 8 | 0.89 (0.55, 1.44) | 1.05 (0.65, 1.72) | 1.13 (0.67, 1.86) |
Reading | |||||||
None | 2246 | 59,986 | 47 | 8 | 1 | 1 | 1 |
1–30 min/day | 1082 | 29,148 | 30 | 10 | 1.30 (0.82, 2.05) | 1.39 (0.87, 2.20) | 1.39 (0.87, 2.22) |
> 30 min/day | 614 | 16,556 | 14 | 8 | 1.07 (0.59, 1.94) | 1.15 (0.63, 2.10) | 1.13 (0.62, 2.07) |
Reading and doing homework | |||||||
None | 1479 | 39,220 | 31 | 8 | 1 | 1 | 1 |
1–120 min/day | 1643 | 44,338 | 43 | 10 | 1.20 (0.75, 1.90) | 1.34 (0.84, 2.14) | 1.37 (0.86, 2.19) |
> 120 min/day | 820 | 22,132 | 17 | 8 | 0.94 (0.52, 1.70) | 1.16 (0.64, 2.12) | 1.24 (0.68, 2.27) |