1. Daytime napping, sleep duration and increased 8-year risk of type 2 diabetes in a British population 
Y. Leng, F.P. Cappuccio, P.G. Surtees, R. Luben, C. Brayne, K.-T. Khaw 
Nutrition, Metabolism and Cardiovascular Diseases 
Volume 26, Issue 11, Pages (November 2016)
DOI: /j.numecd
Copyright © 2016 The Italian Society of Diabetology, the Italian Society for the Study of Atherosclerosis, the Italian Society of Human Nutrition, and the Department of Clinical Medicine and Surgery, Federico II University Terms and Conditions

2. 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 durationNappingNoYes<6 h42 (1980)41 (846)6–8 h93 (6556)67 (2337)>8 h23 (829)19 (506)
Nutrition, Metabolism and Cardiovascular Diseases  , DOI: ( /j.numecd )
Copyright © 2016 The Italian Society of Diabetology, the Italian Society for the Study of Atherosclerosis, the Italian Society of Human Nutrition, and the Department of Clinical Medicine and Surgery, Federico II University Terms and Conditions