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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

Table 3.

Associations between Subjective Sleep Quality, Depressive Symptoms, and Suicidal Ideation (N = 639)

Sleep quality a and depressive symptoms b Suicidal ideation
Unadjusted d OR (95% CI) Adjusted e OR (95% CI)
No (N = 531c)
Yes (N = 108)
n % n %
Good sleep quality, no depression 354 66.7 42 38.9 Reference Reference
Good sleep quality, depression 46 8.7 15 13.9 2.75 (1.41–5.34) 2.83 (1.43–5.61)
Poor sleep quality, no depression 75 14.1 22 20.4 2.47 (1.39–4.38) 2.01 (1.10–3.67)
Poor sleep quality, depression 56 10.5 29 26.9 4.37 (2.52–7.57) 3.48 (1.96–6.18)
 P-value for interaction 0.35 0.32
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.

d

: Unadjusted model; odds ratio was calculated by including an interaction term between sleep quality and depression in the model.

e

: Adjusted for age (years), parity (nulliparous vs. multiparous), access to basics (hard vs. not very hard), and lifetime intimate partner violence (any physical or sexual abuse vs. no abuse); odds ratio was calculated by including an interaction term between sleep quality and depression in the model.