Figure 1.
Joint effects of daytime napping and sleep duration on the risk of type 2 diabetes. Adjusted for age, sex, education, marital status, employ status, smoking, alcohol, physical activity, pre-existing diseases and hypnotic drug use. p for interaction = 0.3.
Number of participants with (and without) diabetes by categories of sleep duration and napping.
| Sleep duration | Napping |
|
|---|---|---|
| No | Yes | |
| <6 h | 42 (1980) | 41 (846) |
| 6–8 h | 93 (6556) | 67 (2337) |
| >8 h | 23 (829) | 19 (506) |