• 1
    Specchio LM, Prudenzano MP, De Tommaso M, et al. Insomnia, quality of life and psychopathological features. Brain Res Bull 2004; 63: 38591.
  • 2
    Parish JM. Sleep related problems in common medical conditions. Chest 2009; 135: 56370.
  • 3
    Kahrilas PJ. Obstructive sleep apnea and reflux disease: bedfellows at best. Chest 2010; 137: 7478.
  • 4
    Addolorato G, Mirijello A, D’Angelo C, et al. State and trait anxiety and depression in patients affected by gastrointestinal diseases: psychometric evaluation of 1641 patients referred to an internal medicine outpatient setting. Int J Clin Pract 2008; 62: 10639.
  • 5
    Siniscalchi M, Iovino P, Tortora R, et al. Fatigue in adult coeliac disease. Aliment Pharmacol Ther 2005; 22: 48994.
  • 6
    Ludvigsson JF, Reutfors J, Osby U, Ekbom A, Montgomery SM. Coeliac disease and risk of mood disorders – a general population-based cohort study. J Affect Disord 2007; 99: 11726.
  • 7
    Addolorato G, Capristo E, Ghittoni G, et al. Anxiety but not depression decreases in coeliac patients after one-year gluten-free diet: a longitudinal study. Scand J Gastroenterol 2001; 36: 5026.
  • 8
    Moccia M, Pellecchia MT, Erro R, et al. Restless legs syndrome is a common feature of adult celiac disease. Mov Disord 2010; 25: 87781.
  • 9
    Buysse DJ, Reynolds CF 3rd, Monk TH, Berman SR, Kupfer DJ. The Pittsburgh Sleep Quality Index: a new instrument for psychiatric practice and research. Psychiatry Res 1989; 28: 193213.
  • 10
    Buysse DJ, Reynolds CF, Monk TH, et al. Quantification of subjective sleep quality in healthy elderly men and women using the Pittsburgh Sleep Quality Index. Sleep 1989; 14: 3318.
  • 11
    Ware JE, Kosinski M, Keller SD. SF-36 Physical and Mental Health Summary Scales: A User’s Manual. Boston, MA: The Health Institute, New England Medical Center, 1994.
  • 12
    Ware JE. SF-36 health survey update. Spine 2000; 25: 31309.
  • 13
    Ware JE Jr, Kosinski M, Bjorner JB, Turner-Bowker DM, Gandek B, Maruish ME. User’s Manual for the SF-36v2 Health Survey. 2nd ed. Lincoln, RI: Quality Metric Incorporated, 2007.
  • 14
    Hadjivassiliou M, Gibson A, Davies-Jones GAB, Lobo AJ, Stephenson TJ, Milford-Ward A. Does cryptic gluten sensitivity play a part in neurological illness? Lancet 1996; 347: 36971.
  • 15
    Zung W. From art to science. Arch Gen Psychiatry 1973; 29: 32837.
  • 16
    Ciacci C, Iavarone A, Mazzacca G, De Rosa A. Depressive symptoms in adult celiac disease. Scand J Gastroenterol 1998; 33: 24750.
  • 17
    Peterson RA, Reiss RL. The anxiety sensitivity index: construct validity and factor anal analytic structure. J Anxiety Disord 1987; 1: 26577.
  • 18
    Spielberger CD, Gorsuch RL, Lushene RE. Manual for the State-Trait Anxiety Inventory. Palo Alto, CA: Consulting Psychologists Press, 1970.
  • 19
    Spielberger CD, Reheiser EC, Ritterband LM, Sydeman SJ, Unger KK. Assessment of emotional states and personality traits: measuring psychological vital signs. In: ButcherJN, ed. Clinical Personality Assessment: Practical Approaches. New York: Oxford University Press, 1995: 140.
  • 20
    Weinstein AM. Visual ERPs evidence for enhanced processing of threatening information in anxious university students. Biol Psychiatry 1995; 37: 84758.