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. Author manuscript; available in PMC: 2016 Sep 1.
Published in final edited form as: Gen Hosp Psychiatry. 2015 May 6;37(5):441–447. doi: 10.1016/j.genhosppsych.2015.04.014

Figure 1. Self-reported Pittsburgh Sleep Quality Index (PSQI) Global Score, Sleep Quality a, Depression Status b, and Suicidal Ideation (N = 639 c).

Figure 1

Error bar stands for standard error

a: Good sleep quality was defined as the PSQI global score ≤5; poor sleep quality was defined as the PSQI global score >5.

b: No depression was defined as the Patient Health Questionnare-8 (PHQ-8) score < 10; depression was defined as the PHQ- 8 score ≥ 10.

c: Two participants were excluded due to missing information on the PHQ-8.