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. Author manuscript; available in PMC: 2015 Oct 1.
Published in final edited form as: JAMA Psychiatry. 2014 Oct;71(10):1129–1137. doi: 10.1001/jamapsychiatry.2014.1126

Figure 1. Self-reported Sleep Quality at Baseline and Risk for Death by Suicide at 10 Follow-up Years.

Figure 1

The mean Sleep Quality Index total scores are shown for cases (20 suicide decedents) compared with 400 age and sex–matched control subjects. Higher Sleep Quality Index total scores reflect poorer subjective sleep quality. Error bars represent standard errors. χ 2 = 10.87 (odds ratio, 1.39; 95% CI, 1.14-1.69; P < .001).