Table 2.

Weighted and adjusted odds ratios (95% confidence intervals) for suicidality and TST^*

	Self-Reported Sleep Duration
	≤ 4 h	5 h	6 h	7 h	8 h	9 h	≥ 10 h
2007
Suicidal Ideation	3.3 (2.5-4.4)	1.7 (1.2-2.2)	1.7 (1.29-2.10)	1.3 (1.0-1.7)	1.0 (1.0-1.0)	1.6 (1.1-2.3)	1.5 (0.8-2.9)
Suicide Planning	3.4 (2.5-4.8)	1.9 (1.4-2.5)	1.7 (1.3-2.2)	1.2 (0.90-1.6)	1.0 (1.0-1.0)	1.2 (0.8-1.9)	2.2 (1.2-4.1)
Suicide Attempt	4.3 (2.9-6.4)	1.3 (0.9-1.9)	1.5 (1.1-2.2)	1.3 (0.9-1.9)	1.0 (1.0-1.0)	1.5 (0.8-2.5)	1.7 (0.8-4.0)
Attempt Requiring Treatment	5.9 (2.8-12.6)	2.5 (1.1-5.6)	1.5 (0.7-3.4)	1.3 (0.6-2.9)	1.0 (1.0-1.0)	2.1 (0.7-6.6)	4.8 (1.3-17.1)
2009
Suicidal Ideation	2.7 (2.0-3.7)	2.0 (1.5-2.6)	1.3 (1.0-1.7)	1.2 (1.0-1.6)	1.0 (1.0-1.0)	1.2 (0.9-1.8)	1.4 (0.9-2.2)
Suicide Planning	2.6 (1.9-3.5)	1.8 (1.4-2.5)	1.5 (1.2-1.8)	1.2 (0.9-1.5)	1.0 (1.0-1.0)	1.1 (0.7-1.6)	1.2 (0.7-2.0)
Suicide Attempt	4.3 (2.9-6.2)	2.7 (1.8-4.1)	1.3 (0.9-1.8)	1.1 (0.8-1.5)	1.0 (1.0-1.0)	1.5 (0.9-2.6)	3.0 (1.6-5.5)
Attempt Requiring Treatment	6.5 (3.2-13.0)	2.3 (1.1-4.5)	0.9 (0.5-1.7)	0.7 (0.3-1.4)	1.0 (1.0-1.0)	2.1 (0.7-6.1)	6.1 (2.3-16.5)

^*Odds ratios are adjusted for age, sex, race/ethnicity, and feelings of sadness. Reference is 8-h TST. Bolded values are significant at p < 0.005.