{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,23]],"date-time":"2026-01-23T16:02:55Z","timestamp":1769184175928,"version":"3.49.0"},"reference-count":66,"publisher":"Elsevier BV","issue":"5","license":[{"start":{"date-parts":[[2022,9,1]],"date-time":"2022-09-01T00:00:00Z","timestamp":1661990400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2022,9,1]],"date-time":"2022-09-01T00:00:00Z","timestamp":1661990400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"},{"start":{"date-parts":[[2022,5,4]],"date-time":"2022-05-04T00:00:00Z","timestamp":1651622400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100000272","name":"National Institute for Health and Care Research","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100000272","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100000276","name":"Department of Health and Social Care","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100000276","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100009362","name":"South London and Maudsley NHS Foundation Trust","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100009362","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100000380","name":"Guy&apos;s and St Thomas&apos; Charity","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100000380","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["clinicalkey.com","clinicalkey.com.au","clinicalkey.es","clinicalkey.fr","clinicalkey.jp","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["Behavior Therapy"],"published-print":{"date-parts":[[2022,9]]},"DOI":"10.1016\/j.beth.2022.01.004","type":"journal-article","created":{"date-parts":[[2022,1,22]],"date-time":"2022-01-22T02:32:31Z","timestamp":1642818751000},"page":"828-842","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":4,"title":["Generalized Worry in Patients With Chronic Fatigue Syndrome Following Cognitive Behavioral Therapy: A Prospective Cohort Study in Secondary Care"],"prefix":"10.1016","volume":"53","author":[{"given":"Michail","family":"Kalfas","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Abigail","family":"Smakowski","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Colette","family":"Hirsch","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fabio","family":"Simiao","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Trudie","family":"Chalder","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"78","reference":[{"key":"10.1016\/j.beth.2022.01.004_b0005","series-title":"Diagnostic and Statistical Manual of Mental Disorders","author":"American Psychiatric Association","year":"2013"},{"issue":"4","key":"10.1016\/j.beth.2022.01.004_b0010","doi-asserted-by":"crossref","first-page":"399","DOI":"10.1016\/S0022-3999(04)00048-0","article-title":"The relation between pathological worrying and fatigue in a working population","volume":"57","author":"Andrea","year":"2004","journal-title":"Journal of Psychosomatic Research"},{"issue":"1","key":"10.1016\/j.beth.2022.01.004_b0015","doi-asserted-by":"crossref","first-page":"25","DOI":"10.1016\/S0005-7916(03)00004-1","article-title":"Screening for generalized anxiety disorder using the Penn State Worry Questionnaire: A receiver operating characteristic analysis","volume":"34","author":"Behar","year":"2003","journal-title":"Journal of Behavior Therapy and Experimental Psychiatry"},{"issue":"11","key":"10.1016\/j.beth.2022.01.004_b0020","doi-asserted-by":"crossref","first-page":"948","DOI":"10.1002\/da.21955","article-title":"Avoidance, safety behavior, and reassurance seeking in generalized anxiety disorder","volume":"29","author":"Beesdo-Baum","year":"2012","journal-title":"Depression and Anxiety"},{"key":"10.1016\/j.beth.2022.01.004_b0025","series-title":"Worrying: Perspectives on Theory Assessment and Treatment","first-page":"5","article-title":"The nature, functions and origins of worry","author":"Borkovec","year":"1994"},{"key":"10.1016\/j.beth.2022.01.004_b0030","series-title":"Generalized Anxiety Disorder: Advances in Research and Practice","first-page":"77","article-title":"Avoidance theory of worry and generalized anxiety disorder","author":"Borkovec","year":"2004"},{"issue":"1","key":"10.1016\/j.beth.2022.01.004_b0035","doi-asserted-by":"crossref","first-page":"69","DOI":"10.1016\/0005-7967(90)90056-O","article-title":"The effect of worry on cardiovascular response to phobic imagery","volume":"28","author":"Borkovec","year":"1990","journal-title":"Behavior Research and Therapy"},{"issue":"1","key":"10.1016\/j.beth.2022.01.004_b0040","doi-asserted-by":"crossref","first-page":"9","DOI":"10.1016\/0005-7967(83)90121-3","article-title":"Preliminary exploration of worry: Some characteristics and processes","volume":"21","author":"Borkovec","year":"1983","journal-title":"Behavior Research and Therapy"},{"issue":"4","key":"10.1016\/j.beth.2022.01.004_b0045","doi-asserted-by":"crossref","first-page":"347","DOI":"10.1097\/JGP.0b013e3181f18061","article-title":"Early response to psychotherapy and long-term change in worry symptoms in older adults with generalized anxiety disorder","volume":"19","author":"Bradford","year":"2011","journal-title":"The American Journal of Geriatric Psychiatry"},{"issue":"2","key":"10.1016\/j.beth.2022.01.004_b0050","doi-asserted-by":"crossref","first-page":"175","DOI":"10.1017\/S1352465811000543","article-title":"Cognitive behavior therapy for chronic fatigue syndrome in adults: Face to face versus telephone treatment \u2013 A randomized controlled trial","volume":"40","author":"Burgess","year":"2012","journal-title":"Behavioral and Cognitive Psychotherapy"},{"issue":"1","key":"10.1016\/j.beth.2022.01.004_b0055","doi-asserted-by":"crossref","first-page":"17","DOI":"10.1016\/j.jpsychores.2009.10.007","article-title":"Measuring fatigue in clinical and community settings","volume":"69","author":"Cella","year":"2010","journal-title":"Journal of Psychosomatic Research"},{"issue":"3","key":"10.1016\/j.beth.2022.01.004_b0060","doi-asserted-by":"crossref","first-page":"124","DOI":"10.1016\/j.jpsychores.2011.02.009","article-title":"Measuring disability in patients with chronic fatigue syndrome: Reliability and validity of the Work and Social Adjustment Scale","volume":"71","author":"Cella","year":"2011","journal-title":"Journal of Psychosomatic Research"},{"issue":"2","key":"10.1016\/j.beth.2022.01.004_b0065","doi-asserted-by":"crossref","first-page":"147","DOI":"10.1016\/0022-3999(93)90081-P","article-title":"Development of a fatigue scale","volume":"37","author":"Chalder","year":"1993","journal-title":"Journal of Psychosomatic Research"},{"issue":"2","key":"10.1016\/j.beth.2022.01.004_b0070","doi-asserted-by":"crossref","first-page":"141","DOI":"10.1016\/S2215-0366(14)00069-8","article-title":"Rehabilitative therapies for chronic fatigue syndrome: A secondary mediation analysis of the PACE trial","volume":"2","author":"Chalder","year":"2015","journal-title":"The Lancet Psychiatry"},{"issue":"2","key":"10.1016\/j.beth.2022.01.004_b0075","doi-asserted-by":"crossref","first-page":"268","DOI":"10.1097\/01.PSY.0000033125.08272.A9","article-title":"Comorbid illness in women with chronic fatigue syndrome: A test of the single syndrome hypothesis","volume":"65","author":"Ciccone","year":"2003","journal-title":"Psychosomatic Medicine"},{"issue":"12","key":"10.1016\/j.beth.2022.01.004_b0080","doi-asserted-by":"crossref","first-page":"994","DOI":"10.1002\/da.21999","article-title":"Generalized anxiety disorder and the proposed associated symptoms criterion change for DSM-5 in a treatment-seeking sample of anxious youth","volume":"29","author":"Comer","year":"2012","journal-title":"Depression and Anxiety"},{"issue":"6","key":"10.1016\/j.beth.2022.01.004_b0085","doi-asserted-by":"crossref","first-page":"1197","DOI":"10.1017\/S0033291700035923","article-title":"Psychosocial risk factors for chronic fatigue and chronic fatigue syndrome following presumed viral illness: A case\u2013control study","volume":"26","author":"Cope","year":"1996","journal-title":"Psychological Medicine"},{"issue":"1","key":"10.1016\/j.beth.2022.01.004_b0090","doi-asserted-by":"crossref","first-page":"108","DOI":"10.1016\/j.janxdis.2007.01.002","article-title":"A meta-analysis of CBT for pathological worry among clients with GAD","volume":"22","author":"Covin","year":"2008","journal-title":"Journal of Anxiety Disorders"},{"issue":"1","key":"10.1016\/j.beth.2022.01.004_b0095","doi-asserted-by":"crossref","first-page":"10","DOI":"10.1016\/j.ijchp.2019.11.003","article-title":"Prevalence and treatment of Chronic Fatigue Syndrome\/Myalgic Encephalomyelitis and co-morbid severe health anxiety","volume":"20","author":"Daniels","year":"2020","journal-title":"International Journal of Clinical and Health Psychology"},{"key":"10.1016\/j.beth.2022.01.004_b0100","doi-asserted-by":"crossref","first-page":"55","DOI":"10.1016\/j.jpsychores.2017.02.009","article-title":"Do changes in illness perceptions, physical activity, and behavioral regulation influence fatigue severity and health-related outcomes in CFS patients?","volume":"95","author":"De Gucht","year":"2017","journal-title":"Journal of Psychosomatic Research"},{"issue":"3","key":"10.1016\/j.beth.2022.01.004_b0105","doi-asserted-by":"crossref","first-page":"216","DOI":"10.1080\/16506073.2011.582138","article-title":"Psychometric comparison of the Generalized Anxiety Disorder Scale-7 and the Penn State Worry Questionnaire for measuring response during treatment of Generalized Anxiety Disorder","volume":"40","author":"Dear","year":"2011","journal-title":"Cognitive Behavior Therapy"},{"issue":"5","key":"10.1016\/j.beth.2022.01.004_b0110","doi-asserted-by":"crossref","first-page":"1557","DOI":"10.3390\/jcm9051557","article-title":"Systematic Review of the Epidemiological Burden of Myalgic Encephalomyelitis\/Chronic Fatigue Syndrome Across Europe: Current Evidence and EUROMENE Research Recommendations for Epidemiology","volume":"9","author":"Est\u00e9vez-L\u00f3pez","year":"2020","journal-title":"Journal of Clinical Medicine"},{"issue":"5","key":"10.1016\/j.beth.2022.01.004_b0115","doi-asserted-by":"crossref","first-page":"405","DOI":"10.1111\/j.1600-0447.1997.tb09653.x","article-title":"Generalized anxiety disorder in chronic fatigue syndrome","volume":"95","author":"Fischler","year":"1997","journal-title":"Acta Psychiatrica Scandinavica"},{"issue":"3\u20134","key":"10.1016\/j.beth.2022.01.004_b0120","doi-asserted-by":"crossref","first-page":"283","DOI":"10.1016\/j.jbtep.2003.09.001","article-title":"Using the Penn State Worry Questionnaire to identify individuals with generalized anxiety disorder: A receiver operating characteristic analysis","volume":"34","author":"Fresco","year":"2003","journal-title":"Journal of Behavior Therapy and Experimental Psychiatry"},{"issue":"12","key":"10.1016\/j.beth.2022.01.004_b0125","doi-asserted-by":"crossref","first-page":"953","DOI":"10.7326\/0003-4819-121-12-199412150-00009","article-title":"The chronic fatigue syndrome: A comprehensive approach to its definition and study. International Chronic Fatigue Syndrome Study Group","volume":"121","author":"Fukuda","year":"1994","journal-title":"Annals of Internal Medicine"},{"issue":"3","key":"10.1016\/j.beth.2022.01.004_b0130","doi-asserted-by":"crossref","first-page":"237","DOI":"10.3102\/00346543042003237","article-title":"Consequences of Failure to Meet Assumptions Underlying the Fixed Effects Analyses of Variance and Covariance","volume":"42","author":"Glass","year":"1972","journal-title":"Review of Educational Research"},{"key":"10.1016\/j.beth.2022.01.004_b0135","series-title":"Introduction to Mediation, Moderation, and Conditional Process Analysis: A Regression-Based Approach","author":"Hayes","year":"2013"},{"issue":"1","key":"10.1016\/j.beth.2022.01.004_b0140","doi-asserted-by":"crossref","first-page":"39","DOI":"10.1016\/S0022-3999(97)00265-1","article-title":"Coping and adaptive outcome in chronic fatigue syndrome: Importance of illness cognitions","volume":"45","author":"Heijmans","year":"1998","journal-title":"Journal of Psychosomatic Research"},{"issue":"11","key":"10.1016\/j.beth.2022.01.004_b0145","doi-asserted-by":"crossref","first-page":"1258","DOI":"10.1001\/archpsyc.63.11.1258","article-title":"Early adverse experience and risk for chronic fatigue syndrome: Results from a population-based study","volume":"63","author":"Heim","year":"2006","journal-title":"Archives of General Psychiatry"},{"issue":"2","key":"10.1016\/j.beth.2022.01.004_b0150","doi-asserted-by":"crossref","first-page":"300","DOI":"10.1016\/j.psyneuen.2012.06.006","article-title":"Anxiety disorders and salivary cortisol levels in older adults: A population-based study","volume":"38","author":"Hek","year":"2013","journal-title":"Psychoneuroendocrinology"},{"issue":"5","key":"10.1016\/j.beth.2022.01.004_b0155","doi-asserted-by":"crossref","first-page":"342","DOI":"10.1002\/da.20249","article-title":"Impairment and quality of life in individuals with generalized anxiety disorder","volume":"24","author":"Henning","year":"2007","journal-title":"Depression and Anxiety"},{"key":"10.1016\/j.beth.2022.01.004_b0160","doi-asserted-by":"crossref","DOI":"10.3389\/fpsyt.2019.00796","article-title":"Approaching Cognitive Behavior Therapy For Generalized Anxiety Disorder From A Cognitive Process Perspective","volume":"10","author":"Hirsch","year":"2019","journal-title":"Frontiers in Psychiatry"},{"key":"10.1016\/j.beth.2022.01.004_b0165","doi-asserted-by":"crossref","first-page":"14","DOI":"10.1016\/j.janxdis.2018.03.004","article-title":"Rethinking avoidance: Toward a balanced approach to avoidance in treating anxiety disorders","volume":"55","author":"Hofmann","year":"2018","journal-title":"Journal of Anxiety Disorders"},{"issue":"1","key":"10.1016\/j.beth.2022.01.004_b0170","doi-asserted-by":"crossref","first-page":"23","DOI":"10.1002\/da.20019","article-title":"Generalized anxiety disorder and major depressive disorder comorbidity in the National Survey of Mental Health and Well-Being","volume":"20","author":"Hunt","year":"2004","journal-title":"Depression and Anxiety"},{"key":"10.1016\/j.beth.2022.01.004_b0175","series-title":"IBM SPSS Statistics for Windows, Version 25.0","author":"IBM Corp.","year":"2017"},{"issue":"4","key":"10.1016\/j.beth.2022.01.004_b0180","doi-asserted-by":"crossref","first-page":"449","DOI":"10.1097\/PSY.0000000000000161","article-title":"Mood and anxiety disorders in chronic fatigue syndrome, fibromyalgia, and irritable bowel syndrome: Results from the LifeLines cohort study","volume":"77","author":"Janssens","year":"2015","journal-title":"Psychosomatic Medicine"},{"issue":"1","key":"10.1016\/j.beth.2022.01.004_b0185","doi-asserted-by":"crossref","first-page":"105","DOI":"10.2147\/CLEP.S39876","article-title":"The prevalence of chronic fatigue syndrome\/ myalgic encephalomyelitis: A meta-analysis","volume":"5","author":"Johnston","year":"2013","journal-title":"Clinical Epidemiology"},{"issue":"11","key":"10.1016\/j.beth.2022.01.004_b0190","doi-asserted-by":"crossref","first-page":"1267","DOI":"10.1001\/archpsyc.63.11.1267","article-title":"Premorbid predictors of chronic fatigue","volume":"63","author":"Kato","year":"2006","journal-title":"Archives of General Psychiatry"},{"issue":"12","key":"10.1016\/j.beth.2022.01.004_b0195","doi-asserted-by":"crossref","first-page":"1915","DOI":"10.1176\/ajp.156.12.1915","article-title":"Impairment in pure and comorbid generalized anxiety disorder and major depression at 12 months in two national surveys","volume":"156","author":"Kessler","year":"1999","journal-title":"American Journal of Psychiatry"},{"issue":"6","key":"10.1016\/j.beth.2022.01.004_b0200","doi-asserted-by":"crossref","first-page":"586","DOI":"10.1097\/PSY.0000000000000821","article-title":"Attentional Processing and Interpretative Bias in Functional Neurological Disorder","volume":"82","author":"Keynejad","year":"2020","journal-title":"Psychosomatic Medicine"},{"key":"10.1016\/j.beth.2022.01.004_b0205","doi-asserted-by":"crossref","first-page":"40","DOI":"10.1016\/j.janxdis.2015.11.001","article-title":"Factor mixture modeling of the Penn State Worry Questionnaire: Evidence for distinct classes of worry","volume":"37","author":"Korte","year":"2016","journal-title":"Journal of Anxiety Disorders"},{"issue":"10","key":"10.1016\/j.beth.2022.01.004_b0210","doi-asserted-by":"crossref","first-page":"1476","DOI":"10.1016\/j.psyneuen.2009.05.001","article-title":"Cortisol secretion and fatigue: Associations in a community based cohort","volume":"34","author":"Kumari","year":"2009","journal-title":"Psychoneuroendocrinology"},{"key":"10.1016\/j.beth.2022.01.004_b0215","doi-asserted-by":"crossref","first-page":"104667","DOI":"10.1016\/j.yhbeh.2019.104667","article-title":"Physical and mental fatigue across the menstrual cycle in women with and without generalized anxiety disorder","volume":"118","author":"Li","year":"2020","journal-title":"Hormones and Behavior"},{"issue":"1","key":"10.1016\/j.beth.2022.01.004_b0220","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1186\/s12967-020-02269-0","article-title":"Systematic review and meta-analysis of the prevalence of chronic fatigue syndrome\/myalgic encephalomyelitis (CFS\/ME)","volume":"18","author":"Lim","year":"2020","journal-title":"Journal of Translational Medicine"},{"issue":"4","key":"10.1016\/j.beth.2022.01.004_b0225","first-page":"579","article-title":"Consequences of assumption violations revisited: A quantitative review of alternatives to the one-way analysis of variance F test","volume":"66","author":"Lix","year":"1996","journal-title":"Review of Educational Research"},{"issue":"3","key":"10.1016\/j.beth.2022.01.004_b0230","doi-asserted-by":"crossref","first-page":"283","DOI":"10.1016\/j.beth.2013.12.011","article-title":"Rethinking the role of worry in generalized anxiety disorder: Evidence supporting a model of emotional contrast avoidance","volume":"45","author":"Llera","year":"2014","journal-title":"Behavior Therapy"},{"key":"10.1016\/j.beth.2022.01.004_b0235","article-title":"How common are depression and anxiety in adolescents with chronic fatigue syndrome (CFS) and how should we screen for these mental health co-morbidities? A clinical cohort study","author":"Loades","year":"2020","journal-title":"European Child and Adolescent Psychiatry"},{"key":"10.1016\/j.beth.2022.01.004_b0240","doi-asserted-by":"crossref","DOI":"10.1016\/j.jpsychores.2019.05.005","article-title":"Associations of fatigue and sleep disturbance with nine common mental disorders","volume":"123","author":"McCallum","year":"2019","journal-title":"Journal of Psychosomatic Research"},{"issue":"6","key":"10.1016\/j.beth.2022.01.004_b0245","doi-asserted-by":"crossref","first-page":"487","DOI":"10.1016\/0005-7967(90)90135-6","article-title":"Development and validation of the Penn State Worry Questionnaire","volume":"28","author":"Meyer","year":"1990","journal-title":"Behavior Research and Therapy"},{"key":"10.1016\/j.beth.2022.01.004_b0250","doi-asserted-by":"crossref","first-page":"461","DOI":"10.1192\/bjp.180.5.461","article-title":"The Work and Social Adjustment Scale: A simple measure of impairment in functioning","volume":"180","author":"Mundt","year":"2002","journal-title":"British Journal of Psychiatry"},{"issue":"5","key":"10.1016\/j.beth.2022.01.004_b0255","doi-asserted-by":"crossref","first-page":"557","DOI":"10.1097\/PSY.0b013e31819ea179","article-title":"Psychiatric comorbidity in persons with chronic fatigue syndrome identified from the Georgia population","volume":"71","author":"Nater","year":"2009","journal-title":"Psychosomatic Medicine"},{"issue":"6","key":"10.1016\/j.beth.2022.01.004_b0260","doi-asserted-by":"crossref","first-page":"567","DOI":"10.1016\/j.jpsychores.2006.04.001","article-title":"Coping styles in people with chronic fatigue syndrome identified from the general population of Wichita, KS","volume":"60","author":"Nater","year":"2006","journal-title":"Journal of Psychosomatic Research"},{"key":"10.1016\/j.beth.2022.01.004_b0265","doi-asserted-by":"crossref","first-page":"275","DOI":"10.1146\/annurev-clinpsy-050212-185544","article-title":"Worry and generalized anxiety disorder: A review and theoretical synthesis of evidence on nature, etiology, mechanisms, and treatment","volume":"9","author":"Newman","year":"2013","journal-title":"Annual Review of Clinical Psychology"},{"key":"10.1016\/j.beth.2022.01.004_b0270","unstructured":"NICE (2007). Chronic fatigue syndrome\/myalgic encephalomyelitis (or encephalopathy): diagnosis and management. https:\/\/www.nice.org.uk\/guidance\/cg53."},{"issue":"1","key":"10.1016\/j.beth.2022.01.004_b0275","doi-asserted-by":"crossref","first-page":"3273","DOI":"10.1038\/s41598-020-60318-6","article-title":"Irritable bowel, chronic widespread pain, chronic fatigue and related syndromes are prevalent and highly overlapping in the general population: DanFunD","volume":"10","author":"Petersen","year":"2020","journal-title":"Scientific Reports"},{"key":"10.1016\/j.beth.2022.01.004_b0280","doi-asserted-by":"crossref","first-page":"346","DOI":"10.1016\/S0140-6736(06)68073-2","article-title":"Chronic fatigue syndrome","volume":"367","author":"Prins","year":"2006","journal-title":"Lancet"},{"issue":"4","key":"10.1016\/j.beth.2022.01.004_b0285","doi-asserted-by":"crossref","first-page":"377","DOI":"10.1016\/S0887-6185(02)00130-5","article-title":"Delimiting the boundaries of generalized anxiety disorder: Differentiating high worriers with and without GAD","volume":"16","author":"Ruscio","year":"2002","journal-title":"Journal of Anxiety Disorders"},{"issue":"2","key":"10.1016\/j.beth.2022.01.004_b0290","doi-asserted-by":"crossref","first-page":"230","DOI":"10.1097\/PSY.0000000000000536","article-title":"Psychometric Properties and Factor Structure of a Long and Shortened Version of the Cognitive and Behavioral Responses Questionnaire","volume":"80","author":"Ryan","year":"2018","journal-title":"Psychosomatic Medicine"},{"issue":"2","key":"10.1016\/j.beth.2022.01.004_b0295","doi-asserted-by":"crossref","first-page":"118","DOI":"10.1177\/014107689108400224","article-title":"A report \u2013 Chronic fatigue syndrome: Guidelines for research","volume":"84","author":"Sharpe","year":"1991","journal-title":"Journal of the Royal Society of Medicine"},{"issue":"4","key":"10.1016\/j.beth.2022.01.004_b0300","doi-asserted-by":"crossref","first-page":"785","DOI":"10.1176\/appi.ajp.160.4.785","article-title":"Unexplained fatigue syndromes in a multinational primary care sample: Specificity of definition and prevalence and distinctiveness from depression and generalized anxiety","volume":"160","author":"Skapinakis","year":"2003","journal-title":"American Journal of Psychiatry"},{"issue":"14","key":"10.1016\/j.beth.2022.01.004_b0305","doi-asserted-by":"crossref","first-page":"1460","DOI":"10.1001\/jama.2009.458","article-title":"Cognitive behavior therapy for generalized anxiety disorder among older adults in primary care: A randomized clinical trial","volume":"301","author":"Stanley","year":"2009","journal-title":"JAMA"},{"issue":"2","key":"10.1016\/j.beth.2022.01.004_b0310","doi-asserted-by":"crossref","first-page":"330","DOI":"10.1037\/a0036343","article-title":"Are attentional control resources reduced by worry in generalized anxiety disorder?","volume":"123","author":"Stefanopoulou","year":"2014","journal-title":"Journal of Abnormal Psychology"},{"issue":"5","key":"10.1016\/j.beth.2022.01.004_b0315","doi-asserted-by":"crossref","first-page":"831","DOI":"10.1037\/a0033561","article-title":"Mediators of the effects on fatigue of pragmatic rehabilitation for chronic fatigue syndrome","volume":"81","author":"Wearden","year":"2013","journal-title":"Journal of Consulting and Clinical Psychology"},{"issue":"9768","key":"10.1016\/j.beth.2022.01.004_b0320","doi-asserted-by":"crossref","first-page":"823","DOI":"10.1016\/S0140-6736(11)60096-2","article-title":"Comparison of adaptive pacing therapy, cognitive behavior therapy, graded exercise therapy, and specialist medical care for chronic fatigue syndrome (PACE): A randomised trial","volume":"377","author":"White","year":"2011","journal-title":"The Lancet"},{"issue":"1","key":"10.1016\/j.beth.2022.01.004_b0325","doi-asserted-by":"crossref","first-page":"44","DOI":"10.1080\/030097400750001798","article-title":"Co-existence of chronic fatigue syndrome with fibromyalgia syndrome in the general population. A controlled study","volume":"29","author":"White","year":"2000","journal-title":"Scandinavian Journal of Rheumatology"},{"key":"10.1016\/j.beth.2022.01.004_b0330","doi-asserted-by":"crossref","first-page":"361","DOI":"10.1111\/j.1600-0447.1983.tb09716.x","article-title":"The Hospital Anxiety and Depression Scale","volume":"67","author":"Zigmond","year":"1983","journal-title":"Acta Psychiatrica Scandinavica"}],"container-title":["Behavior Therapy"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0005789422000065?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0005789422000065?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2025,11,2]],"date-time":"2025-11-02T13:56:51Z","timestamp":1762091811000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S0005789422000065"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,9]]},"references-count":66,"journal-issue":{"issue":"5","published-print":{"date-parts":[[2022,9]]}},"alternative-id":["S0005789422000065"],"URL":"https:\/\/doi.org\/10.1016\/j.beth.2022.01.004","relation":{},"ISSN":["0005-7894"],"issn-type":[{"value":"0005-7894","type":"print"}],"subject":[],"published":{"date-parts":[[2022,9]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"Generalized Worry in Patients With Chronic Fatigue Syndrome Following Cognitive Behavioral Therapy: A Prospective Cohort Study in Secondary Care","name":"articletitle","label":"Article Title"},{"value":"Behavior Therapy","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.beth.2022.01.004","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"\u00a9 2022 Association for Behavioral and Cognitive Therapies. Published by Elsevier Ltd.","name":"copyright","label":"Copyright"}]}}