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. 2017 May 23;12(5):e0177230. doi: 10.1371/journal.pone.0177230

Fig 2. Scatter plots of correlations among PSQI, BDI, the physical and mental component scores of SF-36, and FACIT-fatigue.

Fig 2

There were negative correlations among PSQI score, BDI score, and FACIT-fatigue score. Furthermore, the physical and mental component scores of SF-36 were positively correlated with FACIT-fatigue score. PSQI, Pittsburgh Sleep Quality Index; BDI, Beck Depression Inventory; FACIT-fatigue, Functional Assessment of Chronic Illness Therapy-fatigue; SF-36, Short-Form 36 Health Survey.