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. 2014 Apr 20;15(9):565–570. doi: 10.1111/hiv.12154

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© 2014 The Authors. HIV Medicine published by John Wiley & Sons Ltd on behalf of British HIV Association.

This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.

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Fig 2 — The relationship between trans-activator of transcription (Tat) protein concentration, sleep quality and melatonin levels in HIV-infected patients. (a) Tat protein level was negatively associated with sleep quality in HIV-infected patients, as indicated by the Pittsburgh Sleep Quality Index (R² = 0.0912; F = 11.272; P = 0.001). (b) Tat protein level was positively associated with melatonin level (R² = 0.29; F = 38.17; P < 0.001).