Reviews4 August 2015
A Systematic Review and Meta-analysis
    Author, Article, and Disclosure Information

    Abstract

    Background:

    Because psychological approaches are likely to produce sustained benefits without the risk for tolerance or adverse effects associated with pharmacologic approaches, cognitive behavioral therapy for insomnia (CBT-i) is now commonly recommended as first-line treatment for chronic insomnia.

    Purpose:

    To determine the efficacy of CBT-i on diary measures of overnight sleep in adults with chronic insomnia.

    Data Sources:

    Searches of MEDLINE, EMBASE, PsycINFO, CINAHL, the Cochrane Library, and PubMed Clinical Queries from inception to 31 March 2015, supplemented with manual screening.

    Study Selection:

    Randomized, controlled trials assessing the efficacy of face-to-face, multimodal CBT-i compared with inactive comparators on overnight sleep in adults with chronic insomnia. Studies of insomnia comorbid with medical, sleep, or psychiatric disorders were excluded.

    Data Extraction:

    Study characteristics, quality, and data were assessed independently by 2 reviewers. Main outcome measures were sleep onset latency (SOL), wake after sleep onset (WASO), total sleep time (TST), and sleep efficiency (SE%).

    Data Synthesis:

    Among 292 citations and 91 full-text articles reviewed, 20 studies (1162 participants [64% female; mean age, 56 years]) were included. Approaches to CBT-i incorporated at least 3 of the following: cognitive therapy, stimulus control, sleep restriction, sleep hygiene, and relaxation. At the posttreatment time point, SOL improved by 19.03 (95% CI, 14.12 to 23.93) minutes, WASO improved by 26.00 (CI, 15.48 to 36.52) minutes, TST improved by 7.61 (CI, −0.51 to 15.74) minutes, and SE% improved by 9.91% (CI, 8.09% to 11.73%). Changes seemed to be sustained at later time points. No adverse outcomes were reported.

    Limitation:

    Narrow inclusion criteria limited applicability to patients with comorbid insomnia and other sleep problems, and accuracy of estimates at later time points was less clear.

    Conclusion:

    CBT-i is an effective treatment for adults with chronic insomnia, with clinically meaningful effect sizes.

    Primary Funding Source:

    None. (PROSPERO registration number: CRD42012002863)

    References

    • 1. American Psychiatric AssociationDSM-IV: Diagnostic and Statistical Manual of Mental Disorders. 4th ed. Washington, DC: American Psychiatric Pr; 1994. Google Scholar
    • 2. Morin CMLeBlanc MDaley MGregoire JPMérette CEpidemiology of insomnia: prevalence, self-help treatments, consultations, and determinants of help-seeking behaviors. Sleep Med2006;7:123-30. [PMID: 16459140] CrossrefMedlineGoogle Scholar
    • 3. Ohayon MMEpidemiology of insomnia: what we know and what we still need to learn. Sleep Med Rev2002;6:97-111. [PMID: 12531146] CrossrefMedlineGoogle Scholar
    • 4. Ohayon MMReynolds CFEpidemiological and clinical relevance of insomnia diagnosis algorithms according to the DSM-IV and the International Classification of Sleep Disorders (ICSD). Sleep Med2009;10:952-60. [PMID: 19748312] doi:10.1016/j.sleep.2009.07.008 CrossrefMedlineGoogle Scholar
    • 5. Ohayon MMPrevalence of DSM-IV diagnostic criteria of insomnia: distinguishing insomnia related to mental disorders from sleep disorders. J Psychiatr Res1997;31:333-46. [PMID: 9306291] CrossrefMedlineGoogle Scholar
    • 6. American Psychiatric AssociationDiagnostic and Statistical Manual of Mental Disorders. 5th ed. Arlington, VA: American Psychiatric Publishing; 2013. Google Scholar
    • 7. Chang PPFord DEMead LACooper-Patrick LKlag MJInsomnia in young men and subsequent depression. The Johns Hopkins Precursors Study. Am J Epidemiol1997;146:105-14. [PMID: 9230772] CrossrefMedlineGoogle Scholar
    • 8. Fernandez MELopez SMCazaux ACambursano VHCortes JR[Insomnia: prevalence in Cordoba city hospital]. Rev Fac Cien Med Univ Nac Cordoba2012;69:191-6. [PMID: 23751785] MedlineGoogle Scholar
    • 9. Vgontzas ANLiao DBixler EOChrousos GPVela-Bueno AInsomnia with objective short sleep duration is associated with a high risk for hypertension. Sleep2009;32:491-7. [PMID: 19413143] CrossrefMedlineGoogle Scholar
    • 10. Vgontzas ANLiao DPejovic SCalhoun SKarataraki MBixler EOInsomnia with objective short sleep duration is associated with type 2 diabetes: a population-based study. Diabetes Care2009;32:1980-5. [PMID: 19641160] doi:10.2337/dc09-0284 CrossrefMedlineGoogle Scholar
    • 11. Smith MTHaythornthwaite JAHow do sleep disturbance and chronic pain inter-relate? Insights from the longitudinal and cognitive-behavioral clinical trials literature. Sleep Med Rev2004;8:119-32. [PMID: 15033151] CrossrefMedlineGoogle Scholar
    • 12. Daley MMorin CMLeBlanc MGrégoire JPSavard JBaillargeon LInsomnia and its relationship to health-care utilization, work absenteeism, productivity and accidents. Sleep Med2009;10:427-38. [PMID: 18753000] doi:10.1016/j.sleep.2008.04.005 CrossrefMedlineGoogle Scholar
    • 13. Taylor DJLichstein KLDurrence HHReidel BWBush AJEpidemiology of insomnia, depression, and anxiety. Sleep2005;28:1457-64. [PMID: 16335332] CrossrefMedlineGoogle Scholar
    • 14. Roth TJaeger SJin RKalsekar AStang PEKessler RCSleep problems, comorbid mental disorders, and role functioning in the national comorbidity survey replication. Biol Psychiatry2006;60:1364-71. [PMID: 16952333] CrossrefMedlineGoogle Scholar
    • 15. Breslau NRoth TRosenthal LAndreski PSleep disturbance and psychiatric disorders: a longitudinal epidemiological study of young adults. Biol Psychiatry1996;39:411-8. [PMID: 8679786] CrossrefMedlineGoogle Scholar
    • 16. Roth TDrake CDefining insomnia: the role of quantitative criteria [Editorial]. Sleep2006;29:424-5. [PMID: 16676773] CrossrefMedlineGoogle Scholar
    • 17. Daley MMorin CMLeBlanc MGrégoire JPSavard JThe economic burden of insomnia: direct and indirect costs for individuals with insomnia syndrome, insomnia symptoms, and good sleepers. Sleep2009;32:55-64. [PMID: 19189779] MedlineGoogle Scholar
    • 18. Kripke DFLanger RDKline LEHypnotics' association with mortality or cancer: a matched cohort study. BMJ Open2012;2:e000850. [PMID: 22371848] doi:10.1136/bmjopen-2012-000850 CrossrefMedlineGoogle Scholar
    • 19. International Narcotics Control BoardPsychotropic Substances: Statistics for 2013. New York: United Nations; 2014. Google Scholar
    • 20. Charles JHarrison CBritt HInsomnia. Aust Fam Physician2009;38:283. [PMID: 19458795] MedlineGoogle Scholar
    • 21. Hermes EDSernyak MRosenheck RUse of second-generation antipsychotic agents for sleep and sedation: a provider survey. Sleep2013;36:597-600. [PMID: 23565006] doi:10.5665/sleep.2554 CrossrefMedlineGoogle Scholar
    • 22. Anderson SLVande Griend JPQuetiapine for insomnia: a review of the literature. Am J Health Syst Pharm2014;71:394-402. [PMID: 24534594] doi:10.2146/ajhp130221 CrossrefMedlineGoogle Scholar
    • 23. Morin CMBootzin RRBuysse DJEdinger JDEspie CALichstein KLPsychological and behavioral treatment of insomnia: update of the recent evidence (1998–2004). Sleep2006;29:1398-414. [PMID: 17162986] CrossrefMedlineGoogle Scholar
    • 24. Vincent NLionberg CTreatment preference and patient satisfaction in chronic insomnia. Sleep2001;24:411-7. [PMID: 11403525] CrossrefMedlineGoogle Scholar
    • 25. Harvey AGBélanger LTalbot LEidelman PBeaulieu-Bonneau SFortier-Brochu Éet alComparative efficacy of behavior therapy, cognitive therapy, and cognitive behavior therapy for chronic insomnia: a randomized controlled trial. J Consult Clin Psychol2014;82:670-83. [PMID: 24865869] doi:10.1037/a0036606 CrossrefMedlineGoogle Scholar
    • 26. Montgomery PDennis JCognitive behavioural interventions for sleep problems in adults aged 60+. Cochrane Database Syst Rev2003:CD003161. [PMID: 12535460] MedlineGoogle Scholar
    • 27. Morin CMCulbert JPSchwartz SMNonpharmacological interventions for insomnia: a meta-analysis of treatment efficacy. Am J Psychiatry1994;151:1172-80. [PMID: 8037252] CrossrefMedlineGoogle Scholar
    • 28. Okajima IKomada YInoue YA meta-analysis on the treatment effectiveness of cognitive behavioral therapy for primary insomnia. Sleep Biol Rhythms2011;9:24-34. CrossrefGoogle Scholar
    • 29. Murtagh DRGreenwood KMIdentifying effective psychological treatments for insomnia: a meta-analysis. J Consult Clin Psychol1995;63:79-89. [PMID: 7896994] CrossrefMedlineGoogle Scholar
    • 30. Trauer JCunnington DRajaratnam SQian MDoyle JCognitive behavioural therapy for insomnia, a systematic review and meta-analysis. PROSPERO International Prospective Register of Systematic Reviews2012. Google Scholar
    • 31. Morin CMBenca RChronic insomnia. Lancet2012;379:1129-41. [PMID: 22265700] doi:10.1016/S0140-6736(11)60750-2 CrossrefMedlineGoogle Scholar
    • 32. Cochrane Collaboration. The Cochrane Collaboration's Tool for Assessing Risk of Bias. 2011. Accessed at http://ohg.cochrane.org/sites/ohg.cochrane.org/files/uploads/Risk of bias assessment tool.pdf on 20 May 2015. Google Scholar
    • 33. Higgins JPThompson SGDeeks JJAltman DGMeasuring inconsistency in meta-analyses. BMJ2003;327:557-60. [PMID: 12958120] CrossrefMedlineGoogle Scholar
    • 34. Egger MDavey Smith GSchneider MMinder CBias in meta-analysis detected by a simple, graphical test. BMJ1997;315:629-34. [PMID: 9310563] CrossrefMedlineGoogle Scholar
    • 35. Fernando AArroll BFalloon KA double-blind randomised controlled study of a brief intervention of bedtime restriction for adult patients with primary insomnia. J Prim Health Care2013;5:5-10. [PMID: 23457689] CrossrefMedlineGoogle Scholar
    • 36. Edinger JDWohlgemuth WKRadtke RACoffman CJCarney CEDose-response effects of cognitive-behavioral insomnia therapy: a randomized clinical trial. Sleep2007;30:203-12. [PMID: 17326546] CrossrefMedlineGoogle Scholar
    • 37. Altena EVan Der Werf YDStrijers RLVan Someren EJSleep loss affects vigilance: effects of chronic insomnia and sleep therapy. J Sleep Res2008;17:335-43. [PMID: 18844819] doi:10.1111/j.1365-2869.2008.00671.x CrossrefMedlineGoogle Scholar
    • 38. Bothelius KKyhle KEspie CABroman JEManual-guided cognitive-behavioural therapy for insomnia delivered by ordinary primary care personnel in general medical practice: a randomized controlled effectiveness trial. J Sleep Res2013;22:688-96. [PMID: 23859625] doi:10.1111/jsr.12067 CrossrefMedlineGoogle Scholar
    • 39. Buysse DJGermain AMoul DEFranzen PLBrar LKFletcher MEet alEfficacy of brief behavioral treatment for chronic insomnia in older adults. Arch Intern Med2011;171:887-95. [PMID: 21263078] doi:10.1001/archinternmed.2010.535 CrossrefMedlineGoogle Scholar
    • 40. Edinger JDWohlgemuth WKRadtke RAMarsh GRQuillian RECognitive behavioral therapy for treatment of chronic primary insomnia: a randomized controlled trial. JAMA2001;285:1856-64. [PMID: 11308399] CrossrefMedlineGoogle Scholar
    • 41. Edinger JDSampson WSA primary care “friendly” cognitive behavioral insomnia therapy. Sleep2003;26:177-82. [PMID: 12683477] CrossrefMedlineGoogle Scholar
    • 42. Edinger JDOlsen MKStechuchak KMMeans MKLineberger MDKirby Aet alCognitive behavioral therapy for patients with primary insomnia or insomnia associated predominantly with mixed psychiatric disorders: a randomized clinical trial. Sleep2009;32:499-510. [PMID: 19413144] CrossrefMedlineGoogle Scholar
    • 43. Espie CAInglis SJTessier SHarvey LThe clinical effectiveness of cognitive behaviour therapy for chronic insomnia: implementation and evaluation of a sleep clinic in general medical practice. Behav Res Ther2001;39:45-60. [PMID: 11125723] CrossrefMedlineGoogle Scholar
    • 44. Espie CAMacMahon KMKelly HLBroomfield NMDouglas NJEngleman HMet alRandomized clinical effectiveness trial of nurse-administered small-group cognitive behavior therapy for persistent insomnia in general practice. Sleep2007;30:574-84. [PMID: 17552372] CrossrefMedlineGoogle Scholar
    • 45. Guilleminault CPalombini LPoyares DChowdhuri SChronic insomnia, premenopausal women and sleep disordered breathing: part 2. Comparison of nondrug treatment trials in normal breathing and UARS post-menopausal women complaining of chronic insomnia. J Psychosom Res2002;53:617-23. [PMID: 12127180] CrossrefMedlineGoogle Scholar
    • 46. Jacobs GDPace-Schott EFStickgold ROtto MWCognitive behavior therapy and pharmacotherapy for insomnia: a randomized controlled trial and direct comparison. Arch Intern Med2004;164:1888-96. [PMID: 15451764] CrossrefMedlineGoogle Scholar
    • 47. Lovato NLack LWright HKennaway DJEvaluation of a brief treatment program of cognitive behavior therapy for insomnia in older adults. Sleep2014;37:117-26. [PMID: 24470701] doi:10.5665/sleep.3320 CrossrefMedlineGoogle Scholar
    • 48. McCrae CSMcGovern RLukefahr RStripling AMResearch Evaluating Brief Behavioral Sleep Treatments for Rural Elderly (RESTORE): a preliminary examination of effectiveness. Am J Geriatr Psychiatry2007;15:979-82. [PMID: 17974868] CrossrefMedlineGoogle Scholar
    • 49. Morin CMKowatch RABarry TWalton ECognitive-behavior therapy for late-life insomnia. J Consult Clin Psychol1993;61:137-46. [PMID: 8450099] CrossrefMedlineGoogle Scholar
    • 50. Morin CMColecchi CStone JSood RBrink DBehavioral and pharmacological therapies for late-life insomnia: a randomized controlled trial. JAMA1999;281:991-9. [PMID: 10086433] CrossrefMedlineGoogle Scholar
    • 51. Sivertsen BOmvik SPallesen SBjorvatn BHavik OEKvale Get alCognitive behavioral therapy vs zopiclone for treatment of chronic primary insomnia in older adults: a randomized controlled trial. JAMA2006;295:2851-8. [PMID: 16804151] CrossrefMedlineGoogle Scholar
    • 52. Soeffing JPLichstein KLNau SDMcCrae CSWilson NMAguillard RNet alPsychological treatment of insomnia in hypnotic-dependant older adults. Sleep Med2008;9:165-71. [PMID: 17644419] CrossrefMedlineGoogle Scholar
    • 53. Taylor DJZimmerman MRGardner CEWilliams JMGrieser EATatum JIet alA pilot randomized controlled trial of the effects of cognitive-behavioral therapy for insomnia on sleep and daytime functioning in college students. Behav Ther2014;45:376-89. [PMID: 24680232] doi:10.1016/j.beth.2013.12.010 CrossrefMedlineGoogle Scholar
    • 54. Waters WFHurry MJBinks PGCarney CELajos LEFuller KHet alBehavioral and hypnotic treatments for insomnia subtypes. Behav Sleep Med2003;1:81-101. [PMID: 15600131] CrossrefMedlineGoogle Scholar
    • 55. Wu RBao JZhang CDeng JLong CComparison of sleep condition and sleep-related psychological activity after cognitive-behavior and pharmacological therapy for chronic insomnia. Psychother Psychosom2006;75:220-8. [PMID: 16785771] CrossrefMedlineGoogle Scholar
    • 56. Structured clinical interview for DSM-III-R (SCID). Washington, DC: American Psychiatric Pr; 1990. Google Scholar
    • 57. Diagnostic and Statistical Manual of Mental Disorders, Text Revision (DSM-IV-TR). 4th ed. Washington, DC: American Psychiatric Assoc; 1997. Google Scholar
    • 58. International Classification of Sleep Disorders (ICSD): Diagnostic and Coding Manual. Rochester, MN: American Sleep Disorders Assoc; 1990. Google Scholar
    • 59. The International Classification of Sleep Disorders. 2nd ed. Westchester, IL: American Academy of Sleep Medicine; 2005. Google Scholar
    • 60. Edinger JDBonnet MHBootzin RRDoghramji KDorsey CMEspie CAet alAmerican Academy of Sleep Medicine Work GroupDerivation of research diagnostic criteria for insomnia: report of an American Academy of Sleep Medicine Work Group. Sleep2004;27:1567-96. [PMID: 15683149] CrossrefMedlineGoogle Scholar
    • 61. Spielman AJSaskin PThorpy MJTreatment of chronic insomnia by restriction of time in bed. Sleep1987;10:45-56. [PMID: 3563247] MedlineGoogle Scholar
    • 62. Buysse DJReynolds CFMonk THBerman SRKupfer DJThe Pittsburgh Sleep Quality Index: a new instrument for psychiatric practice and research. Psychiatry Res1989;28:193-213. [PMID: 2748771] CrossrefMedlineGoogle Scholar
    • 63. Morin CMStone JTrinkle DMercer JRemsberg SDysfunctional beliefs and attitudes about sleep among older adults with and without insomnia complaints. Psychol Aging1993;8:463-7. [PMID: 8216967] CrossrefMedlineGoogle Scholar
    • 64. Beck ATWard CHMendelson MMock JErbaugh JAn inventory for measuring depression. Arch Gen Psychiatry1961;4:561-71. [PMID: 13688369] CrossrefMedlineGoogle Scholar
    • 65. Johns MWA new method for measuring daytime sleepiness: the Epworth sleepiness scale. Sleep1991;14:540-5. [PMID: 1798888] CrossrefMedlineGoogle Scholar
    • 66. Bastien CHVallières AMorin CMValidation of the Insomnia Severity Index as an outcome measure for insomnia research. Sleep Med2001;2:297-307. [PMID: 11438246] CrossrefMedlineGoogle Scholar
    • 67. McNair DLorr MDroppleman LProfile of Mood States. San Diego: Educational and Industrial Testing Service; 1971. Google Scholar
    • 68. Ware JESherbourne CDThe MOS 36-item short-form health survey (SF-36). I. Conceptual framework and item selection. Med Care1992;30:473-83. [PMID: 1593914] CrossrefMedlineGoogle Scholar
    • 69. Lacks PBehavioral Treatment for Persistent Insomnia. New York: Pergamon Pr; 1987. Google Scholar
    • 70. Spielberger CGorsuch RLushene RManual for the State-Trait Anxiety Inventory. Palo Alto, CA: Consulting Psychologists Pr; 1970. Google Scholar
    • 71. Smith MTHuang MIManber RCognitive behavior therapy for chronic insomnia occurring within the context of medical and psychiatric disorders. Clin Psychol Rev2005;25:559-92. [PMID: 15970367] CrossrefMedlineGoogle Scholar
    • 72. Taylor DJPruiksma KECognitive and behavioural therapy for insomnia (CBT-I) in psychiatric populations: a systematic review. Int Rev Psychiatry2014;26:205-13. [PMID: 24892895] doi:10.3109/09540261.2014.902808 CrossrefMedlineGoogle Scholar
    • 73. Ashworth DKSletten TLJunge MSimpson KClarke DCunnington Det alA randomized controlled trial of cognitive behavioral therapy for insomnia: an effective treatment for comorbid insomnia and depression. J Couns Psychol2015;62:115-23. [PMID: 25867693] doi:10.1037/cou0000059 CrossrefMedlineGoogle Scholar
    • 74. Morin CMEspie CAInsomnia: A Clinical Guide to Assessment and Treatment. New York: Kluwer Academic/Plenum; 2003. Google Scholar
    • 75. Edinger JDCarney CEOvercoming Insomnia: A Cognitive-Behavioral Therapy Approach. Therapist Guide. New York: Oxford Univ Pr; 2008. Google Scholar
    • 76. Arnedt JTCuddihy LSwanson LMPickett SAikens JChervin RDRandomized controlled trial of telephone-delivered cognitive behavioral therapy for chronic insomnia. Sleep2013;36:353-62. [PMID: 23450712] doi:10.5665/sleep.2448 CrossrefMedlineGoogle Scholar
    • 77. Espie CAKyle SDWilliams COng JCDouglas NJHames Pet alA randomized, placebo-controlled trial of online cognitive behavioral therapy for chronic insomnia disorder delivered via an automated media-rich web application. Sleep2012;35:769-81. [PMID: 22654196] doi:10.5665/sleep.1872 CrossrefMedlineGoogle Scholar
    • 78. Cunnington DJunge MFFernando ATInsomnia: prevalence, consequences and effective treatment. Med J Aust2013;199:S36-40. [PMID: 24138364] CrossrefMedlineGoogle Scholar
    • 79. Vallières AIvers HBastien CHBeaulieu-Bonneau SMorin CMVariability and predictability in sleep patterns of chronic insomniacs. J Sleep Res2005;14:447-53. [PMID: 16364146] CrossrefMedlineGoogle Scholar
    • 80. Buysse DJThompson WScott JFranzen PLGermain AHall Met alDaytime symptoms in primary insomnia: a prospective analysis using ecological momentary assessment. Sleep Med2007;8:198-208. [PMID: 17368098] CrossrefMedlineGoogle Scholar
    • 81. Gu NYBotteman MFJi XBell CFCarter JAvan Hout BMapping of the Insomnia Severity Index and other sleep measures to EuroQol EQ-5D health state utilities. Health Qual Life Outcomes2011;9:119. [PMID: 22208861] doi:10.1186/1477-7525-9-119 CrossrefMedlineGoogle Scholar
    • 82. Bonnet MHArand DLEEG arousal norms by age. J Clin Sleep Med2007;3:271-4. [PMID: 17561594] CrossrefMedlineGoogle Scholar
    • 83. Walsleben JAKapur VKNewman ABShahar EBootzin RRRosenberg CEet alSleep and reported daytime sleepiness in normal subjects: the Sleep Heart Health Study. Sleep2004;27:293-8. [PMID: 15124725] CrossrefMedlineGoogle Scholar
    • 84. Smith MTPerlis MLPark ASmith MSPennington JGiles DEet alComparative meta-analysis of pharmacotherapy and behavior therapy for persistent insomnia. Am J Psychiatry2002;159:5-11. [PMID: 11772681] CrossrefMedlineGoogle Scholar
    • 85. De Niet GJTiemens BGKloos MWHutschemaekers GJReview of systematic reviews about the efficacy of non-pharmacological interventions to improve sleep quality in insomnia. Int J Evid Based Healthc2009;7:233-42. [PMID: 21631864] doi:10.1111/j.1744-1609.2009.00142.x CrossrefMedlineGoogle Scholar
    • 86. Hofmann SGAsnaani AVonk IJSawyer ATFang AThe efficacy of cognitive behavioral therapy: a review of meta-analyses. Cognit Ther Res2012;36:427-440. [PMID: 23459093] CrossrefMedlineGoogle Scholar
    • 87. Meltzer LJMindell JASystematic review and meta-analysis of behavioral interventions for pediatric insomnia. J Pediatr Psychol2014;39:932-48. [PMID: 24947271] doi:10.1093/jpepsy/jsu041 CrossrefMedlineGoogle Scholar
    • 88. Belleville GCousineau HLevrier KSt-Pierre-Delorme MÈMeta-analytic review of the impact of cognitive-behavior therapy for insomnia on concomitant anxiety. Clin Psychol Rev2011;31:638-52. [PMID: 21482322] doi:10.1016/j.cpr.2011.02.004 CrossrefMedlineGoogle Scholar
    • 89. Cheng SKDizon JComputerised cognitive behavioural therapy for insomnia: a systematic review and meta-analysis. Psychother Psychosom2012;81:206-16. [PMID: 22585048] doi:10.1159/000335379 CrossrefMedlineGoogle Scholar
    • 90. Koffel EAKoffel JBGehrman PRA meta-analysis of group cognitive behavioral therapy for insomnia. Sleep Med Rev2015;19:6-16. [PMID: 24931811] doi:10.1016/j.smrv.2014.05.001 CrossrefMedlineGoogle Scholar
    • 91. Pallesen SNordhus IHKvale GNonpharmacological interventions for insomnia in older adults: a meta-analysis of treatment efficacy. Psychotherapy (Chic)1998;35:472-82. CrossrefGoogle Scholar
    • 92. Irwin MRCole JCNicassio PMComparative meta-analysis of behavioral interventions for insomnia and their efficacy in middle-aged adults and in older adults 55+ years of age. Health Psychol2006;25:3-14. [PMID: 16448292] CrossrefMedlineGoogle Scholar
    • 93. Rybarczyk BLopez MBenson RAlsten CStepanski EEfficacy of two behavioral treatment programs for comorbid geriatric insomnia. Psychol Aging2002;17:288-98. [PMID: 12061413] CrossrefMedlineGoogle Scholar
    • 94. Mimeault VMorin CMSelf-help treatment for insomnia: bibliotherapy with and without professional guidance. J Consult Clin Psychol1999;67:511-9. [PMID: 10450621] CrossrefMedlineGoogle Scholar
    • 95. Ström LPettersson RAndersson GInternet-based treatment for insomnia: a controlled evaluation. J Consult Clin Psychol2004;72:113-20. [PMID: 14756620] CrossrefMedlineGoogle Scholar
    • 96. Perlis MLSmith MTOrff HEnright TNowakowski SJungquist Cet alThe effects of modafinil and cognitive behavior therapy on sleep continuity in patients with primary insomnia. Sleep2004;27:715-25. [PMID: 15283007] CrossrefMedlineGoogle Scholar
    • 97. Jansson MLinton SJCognitive-behavioral group therapy as an early intervention for insomnia: a randomized controlled trial. J Occup Rehabil2005;15:177-90. [PMID: 15844675] CrossrefMedlineGoogle Scholar
    • 98. Nowell PDMazumdar SBuysse DJDew MAReynolds CFKupfer DJBenzodiazepines and zolpidem for chronic insomnia: a meta-analysis of treatment efficacy. JAMA1997;278:2170-7. [PMID: 9417012] CrossrefMedlineGoogle Scholar
    • 99. Huedo-Medina TBKirsch IMiddlemass JKlonizakis MSiriwardena ANEffectiveness of non-benzodiazepine hypnotics in treatment of adult insomnia: meta-analysis of data submitted to the Food and Drug Administration. BMJ2012;345:e8343. [PMID: 23248080] doi:10.1136/bmj.e8343 CrossrefMedlineGoogle Scholar
    • 100. Hoque RChesson ALZolpidem-induced sleepwalking, sleep related eating disorder, and sleep-driving: fluorine-18-flourodeoxyglucose positron emission tomography analysis, and a literature review of other unexpected clinical effects of zolpidem. J Clin Sleep Med2009;5:471-6. [PMID: 19961034] CrossrefMedlineGoogle Scholar
    • 101. Zammit GComparative tolerability of newer agents for insomnia. Drug Saf2009;32:735-48. [PMID: 19670914] doi:10.2165/11312920-000000000-00000 CrossrefMedlineGoogle Scholar
    • 102. Kales AManfredi RLVgontzas ANBixler EOVela-Bueno AFee ECRebound insomnia after only brief and intermittent use of rapidly eliminated benzodiazepines. Clin Pharmacol Ther1991;49:468-76. [PMID: 2015735] CrossrefMedlineGoogle Scholar
    • 103. Janson CLindberg EGislason TElmasry ABoman GInsomnia in men-a 10-year prospective population based study. Sleep2001;24:425-30. [PMID: 11403527] CrossrefMedlineGoogle Scholar
    • 104. Schutte-Rodin SBroch LBuysse DDorsey CSateia MClinical guideline for the evaluation and management of chronic insomnia in adults. J Clin Sleep Med2008;4:487-504. [PMID: 18853708] CrossrefMedlineGoogle Scholar