Table 3.

Binary Regression Model Showing Odds Ratio of Various Diseases

	7–8 Hours	<5 Hours		5–6 Hours		6–7 Hours		>8 Hours
	OR	OR (95% CI)	P-value	OR (95% CI)	P-value	OR (95% CI)	P-value	OR (95% CI)	P-value
Diabetes	1.00	1.58 (1.40–1.77)	<0.001	1.05 (0.93–1.18)	0.436	1.02 (0.91–1.15)	0.679	1.02 (0.83–1.25)	0.883
Disorders of glucose regulation and pancreatic internal secretion	1.00	1.72 (0.97–3.07)	0.064	1.18 (0.66–2.11)	0.575	0.82 (0.45–1.48)	0.505	1.80 (0.78–4.14)	0.169
Obesity and other hyperalimentation	1.00	1.48 (1.28–1.70)	<0.001	1.12 (0.97–1.29)	0.115	1.04 (0.90–1.19)	0.613	0.92 (0.71–1.19)	0.524
Organic mental disorder	1.00	2.06 (1.26–3.37)	0.004	0.91 (0.53–1.56)	0.733	1.32 (0.82–2.14)	0.256	2.16 (1.10–4.25)	0.026
Schizophrenia/schizotypal/delusional disorders	1.00	1.36 (0.68–2.72)	0.383	0.84 (0.42–1.70)	0.627	0.95 (0.49–1.83)	0.877	5.61 (2.81–11.21)	<0.001
Mood disorder	1.00	1.44 (1.26–1.65)	<0.001	0.89 (0.78–1.02)	0.093	0.84 (0.74–0.95)	0.007	1.55 (1.28–1.87)	<0.001
Hypertensive diseases	1.00	1.36 (1.28–1.44)	<0.001	1.07 (1.01–1.13)	0.025	1.03 (0.97–1.09)	0.312	1.11 (1.01–1.22)	0.039
Ischaemic heart diseases	1.00	1.25 (1.14–1.37)	<0.001	1.13 (1.04–1.24)	0.007	1.01 (0.93–1.10)	0.819	1.17 (1.01–1.36)	0.040
Pulmonary heart diseases	1.00	1.33 (1.05–1.68)	0.017	1.04 (0.83–1.31)	0.712	0.97 (0.78–1.22)	0.818	1.72 (1.25–2.38)	0.001
Other form of heart disease	1.00	1.37 (1.24–1.52)	<0.001	1.16 (1.05–1.28)	0.004	1.11 (1.01–1.23)	0.032	1.22 (1.03–1.44)	0.020
Cerebrovascular disease	1.00	1.27 (1.05–1.54)	0.013	1.17 (0.98–1.41)	0.086	1.05 (0.88–1.25)	0.609	1.58 (1.20–2.07)	0.001
Diseases of arteries, arterioles and capillaries	1.00	1.36 (1.13–1.65)	0.001	1.26 (1.05–1.51)	0.014	1.14 (0.96–1.36)	0.144	1.32 (0.98–1.76)	0.065

Notes: Binary regression model was adjusted for age, gender and Townsend deprivation index. 7–8 hours sleep group is used as the reference group.

Abbreviations: OR, odds ratio; CI, confidence interval.