Psychosomatic Medicine
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Published online before print August 31, 2007, 10.1097/PSY.0b013e31814b8de6
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Sleep Quality Varies as a Function of 5-HTTLPR Genotype and Stress

Beverly H. Brummett, PhD, Andrew D. Krystal, MD, Allison Ashley-Koch, PhD, Cynthia M. Kuhn, PhD, Stephan Züchner, MD, Ilene C. Siegler, PhD, MPH, John C. Barefoot, PhD, Edna L. Ballard, MSW, Lisa P. Gwyther, MSW and Redford B. Williams, MD

From the Department of Psychiatry and Behavioral Sciences (B.H.B., A.D.K., I.C.S., J.C.B., E.L.B., L.P.G., R.B.W.), Duke University Medical Center; Center for Human Genetics (A.A.-K.), Duke University Medical Center; Department of Pharmacology and Cancer Biology (C.M.K.), Duke University Medical Center; The Bryan Alzheimer's Disease Research Center (E.L.B., L.P.G.), Durham, North Carolina; and University of Miami Miller School of Medicine (S.Z.), Miami Institute of Human Genomics, Miami, Florida.


Figure 15
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  		Figure 1. Pittsburgh Sleep Quality Index (PSQI): Caregiver Stress x 5-HTTLPR genotypes (higher sleep quality scores = poorer sleep; values are adjusted means and error bars = standard errors).

 




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