Table 4.

Multivariate-adjusted logistic regression analysis indicating odds ratios (OR) associated with the presence of diabetes based on interactions between short/long sleep duration and race/ethnicity. In the first pane, effects of sociodemographic (age, sex, and income), factors were adjusted; in the second pane, effects of medical factors (hypertension, heart disease, and depression) were also adjusted, and in the third pane effects of obesity was also adjusted but was statistically insignificant. In Model A, short sleep was defined as sleep durations ≤ 5hoursand in Model B, long sleep was defined as sleep durations ≥9 hours.

Associations of Short/Long Sleep Duration, Sociodemographic, and Medical Factors with Diabetes
	Model A: Short Sleep		Model B: Long Sleep
Variables	OR	95% C.I.	OR	95% C.I.
Sleep Duration X Black	2.56	1.94–3.37	2.15	1.62–2.83
Sleep Duration X White	1.41	1.18–1.68	1.28	1.08–1.51
Sleep Duration X Black	1.74	1.30–2.34	1.68	1.26–2.24
Sleep Duration X White	1.07	0.89–1.29	1.19	1.01–1.42
Sleep Duration X Black	1.25	0.86–1.80	1.45	1.00–2.12
Sleep Duration X White	1.01	0.80–1.28	1.23	0.98–1.53