{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T11:06:03Z","timestamp":1760267163394},"reference-count":60,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2011,11,24]],"date-time":"2011-11-24T00:00:00Z","timestamp":1322092800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Viral Hepatitis"],"published-print":{"date-parts":[[2012,5]]},"abstract":"<jats:p><jats:bold>Summary.\u2002<\/jats:bold> Self\u2010efficacy or confidence in one\u2019s ability to successfully engage in goal\u2010directed behaviour has been shown to influence medication adherence across many chronic illnesses. In the present study, we investigated the psychometric properties of a self\u2010efficacy instrument used during treatment for chronic hepatitis C viral infection (HCV). Baseline (<jats:italic>n\u2003<\/jats:italic>=<jats:italic>\u2003<\/jats:italic>394) and treatment week 24 (<jats:italic>n\u2003<\/jats:italic>=<jats:italic>\u2003<\/jats:italic>254) data from the prospective, longitudinal Viral Resistance to Antiviral Therapy of Chronic Hepatitis C study were examined. Baseline participants were randomly split into two equal\u2010sized subsamples (S<jats:sub>1<\/jats:sub> and S<jats:sub>2<\/jats:sub>). Initial exploratory and confirmatory factor analyses (EFA\/CFA) were performed on S<jats:sub>1<\/jats:sub>, while S<jats:sub>2<\/jats:sub> was used to validate the factor structure of the S<jats:sub>1<\/jats:sub> results using CFA. An additional CFA was performed on the treatment week 24 participants. Convergent and discriminant validity were assessed by comparing the revised instrument with other psychosocial measures: depression, social support, quality of life and medication\u2010taking behaviour. Our findings supported a reduced 17\u2010item global measure of HCV treatment self\u2010efficacy (HCV\u2010TSE) with four underlying factors: patient communication self\u2010efficacy, general physical coping self\u2010efficacy, general psychological coping self\u2010efficacy and adherence self\u2010efficacy. The global score (0.92\u20130.94) and four factors (0.85\u20130.96) demonstrated good internal consistency. Correlations of convergent and discriminant validity yielded low to moderate associations with other measures of psychosocial functioning. The revised HCV\u2010TSE instrument provides a reliable and valid global estimate of confidence in one\u2019s ability to engage in and adhere to HCV antiviral treatment. The four\u2010factor structure suggests different types of efficacy beliefs may function during HCV treatment and should be explored further in relation to clinical outcomes.<\/jats:p>","DOI":"10.1111\/j.1365-2893.2011.01550.x","type":"journal-article","created":{"date-parts":[[2011,11,25]],"date-time":"2011-11-25T03:04:15Z","timestamp":1322190255000},"page":"316-326","source":"Crossref","is-referenced-by-count":4,"title":["Reliability and validity of a self\u2010efficacy instrument for hepatitis C antiviral treatment regimens"],"prefix":"10.1111","volume":"19","author":[{"given":"J. E.","family":"Bonner","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"D.","family":"Esserman","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"D. M.","family":"Evon","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2011,11,24]]},"reference":[{"key":"e_1_2_7_2_2","volume-title":"Viral Hepatitis: Report by the Secretariat","author":"World Health Organization","year":"2010"},{"key":"e_1_2_7_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0002-9270(03)00552-5"},{"key":"e_1_2_7_4_2","doi-asserted-by":"publisher","DOI":"10.1053\/jhep.2002.36791"},{"key":"e_1_2_7_5_2","doi-asserted-by":"publisher","DOI":"10.1056\/NEJMoa020047"},{"key":"e_1_2_7_6_2","doi-asserted-by":"publisher","DOI":"10.1056\/NEJM199811193392101"},{"issue":"1","key":"e_1_2_7_7_2","first-page":"57","article-title":"Combination therapy with interferon plus ribavirin for the initial treatment of chronic hepatitis C","volume":"19","author":"McHutchison JG","year":"1999","journal-title":"Semin Liver Dis"},{"key":"e_1_2_7_8_2","unstructured":"EvonDM EssermanDA RaoT BonnerJE FriedMW GolinCE.Patient missed doses and treatment non\u2010persistence during PEG\/ribavirin therapy for chronic hepatitis C: implications for triple therapy and beyond. [Abstract submitted to the American Association for the Study of Liver Diseases San Francisco CA.] 2011."},{"issue":"1","key":"e_1_2_7_9_2","article-title":"Telaprevir in combination with peginterferon and ribavirin in genotype 1 HCV treatment\u2010naive patients: final results of phase 3 ADVANCE study","volume":"52","author":"Jacobsen IM","year":"2010","journal-title":"Hepatology"},{"issue":"1","key":"e_1_2_7_10_2","article-title":"Telaprevir in combination with peginterferon alfa\u20102a and ribavirin for 24 or 48\u2003weeks in treatment\u2010naive genotype 1 HCV patients who achieved an extended rapid viral response: final results of phase 3 ILLUMINATE study","volume":"52","author":"Sherman KE","year":"2010","journal-title":"Hepatology"},{"issue":"1","key":"e_1_2_7_11_2","article-title":"Boceprevir combined with peginterferon alfa\u20102b\/ribavirin for treatment\u2010naive patients with hepatitis C virus genotype 1: SPRINT\u20102 final results","volume":"52","author":"Poordad F","year":"2010","journal-title":"Hepatology"},{"key":"e_1_2_7_12_2","doi-asserted-by":"publisher","DOI":"10.1177\/1756283X09336045"},{"key":"e_1_2_7_13_2","doi-asserted-by":"publisher","DOI":"10.1002\/hep.24262"},{"key":"e_1_2_7_14_2","doi-asserted-by":"publisher","DOI":"10.1177\/1090198104263660"},{"key":"e_1_2_7_15_2","doi-asserted-by":"publisher","DOI":"10.4278\/0890-1171-12.1.8"},{"key":"e_1_2_7_16_2","first-page":"217","volume-title":"Self\u2010Efficacy: Thought Control of Action","author":"Schwarzer R","year":"1992"},{"key":"e_1_2_7_17_2","doi-asserted-by":"publisher","DOI":"10.1080\/09540120600645539"},{"key":"e_1_2_7_18_2","doi-asserted-by":"publisher","DOI":"10.1023\/B:AIBE.0000030245.52406.bb"},{"key":"e_1_2_7_19_2","doi-asserted-by":"publisher","DOI":"10.1089\/apc.2006.20.258"},{"key":"e_1_2_7_20_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0738-3991(02)00127-1"},{"key":"e_1_2_7_21_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.pec.2006.08.006"},{"key":"e_1_2_7_22_2","doi-asserted-by":"publisher","DOI":"10.1007\/s10865-007-9118-3"},{"key":"e_1_2_7_23_2","doi-asserted-by":"publisher","DOI":"10.1093\/her\/cyg106"},{"key":"e_1_2_7_24_2","doi-asserted-by":"publisher","DOI":"10.1093\/her\/cyr047"},{"key":"e_1_2_7_25_2","doi-asserted-by":"publisher","DOI":"10.1093\/fampra\/cmq086"},{"key":"e_1_2_7_26_2","doi-asserted-by":"publisher","DOI":"10.1007\/s10900-011-9410-6"},{"key":"e_1_2_7_27_2","doi-asserted-by":"publisher","DOI":"10.1097\/NRJ.0b013e3181fbe33f"},{"key":"e_1_2_7_28_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.pec.2011.02.017"},{"key":"e_1_2_7_29_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1526-4610.2011.01866.x"},{"key":"e_1_2_7_30_2","doi-asserted-by":"publisher","DOI":"10.1097\/JNN.0b013e3181ee122b"},{"key":"e_1_2_7_31_2","doi-asserted-by":"publisher","DOI":"10.1177\/1054773804267878"},{"key":"e_1_2_7_32_2","doi-asserted-by":"publisher","DOI":"10.1080\/08870440008400299"},{"key":"e_1_2_7_33_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1464-0597.2007.00321.x"},{"key":"e_1_2_7_34_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1464-0597.2008.00361.x"},{"key":"e_1_2_7_35_2","doi-asserted-by":"publisher","DOI":"10.1177\/1090198107309459"},{"key":"e_1_2_7_36_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.pec.2010.06.006"},{"key":"e_1_2_7_37_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2893.2010.01328.x"},{"key":"e_1_2_7_38_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jpsychores.2011.05.003"},{"key":"e_1_2_7_39_2","doi-asserted-by":"publisher","DOI":"10.1053\/j.gastro.2006.06.008"},{"key":"e_1_2_7_40_2","doi-asserted-by":"publisher","DOI":"10.1080\/09540120050042891"},{"key":"e_1_2_7_41_2","doi-asserted-by":"publisher","DOI":"10.1177\/014662167700100306"},{"key":"e_1_2_7_42_2","doi-asserted-by":"publisher","DOI":"10.1016\/0277-9536(91)90150-B"},{"key":"e_1_2_7_43_2","volume-title":"SF\u201036 Health Survey Manual and Interpretation Guide","author":"Ware JE","year":"1993"},{"key":"e_1_2_7_44_2","doi-asserted-by":"publisher","DOI":"10.1097\/00007632-200012150-00008"},{"key":"e_1_2_7_45_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0920-1211(01)00261-3"},{"key":"e_1_2_7_46_2","doi-asserted-by":"publisher","DOI":"10.1111\/1467-9450.00307"},{"key":"e_1_2_7_47_2","doi-asserted-by":"publisher","DOI":"10.1345\/aph.1K024"},{"key":"e_1_2_7_48_2","doi-asserted-by":"publisher","DOI":"10.1017\/CBO9780511527692.012"},{"key":"e_1_2_7_49_2","doi-asserted-by":"publisher","DOI":"10.1037\/0278-6133.19.5.487"},{"key":"e_1_2_7_50_2","volume-title":"A Step\u2010by\u2010Step Approach to Using SAS for Factor Analysis and Structural Equation Modeling","author":"Hatcher L","year":"1994"},{"key":"e_1_2_7_51_2","volume-title":"Causal Analysis","author":"James LR","year":"1982"},{"key":"e_1_2_7_52_2","doi-asserted-by":"publisher","DOI":"10.1037\/0033-2909.88.3.588"},{"key":"e_1_2_7_53_2","volume-title":"EQS Structural Equations Program","author":"Bentler PM","year":"1989"},{"key":"e_1_2_7_54_2","doi-asserted-by":"publisher","DOI":"10.1037\/0033-2909.103.3.391"},{"key":"e_1_2_7_55_2","doi-asserted-by":"publisher","DOI":"10.1177\/109442810031002"},{"key":"e_1_2_7_56_2","doi-asserted-by":"publisher","DOI":"10.1348\/135910705X53155"},{"key":"e_1_2_7_57_2","doi-asserted-by":"publisher","DOI":"10.1007\/BF02310555"},{"key":"e_1_2_7_58_2","unstructured":"GarsonGD.Validity. Statnotes: Topics in Multivariate Analysis. March 3 2011. Available at:http:\/\/faculty.chass.ncsu.edu\/garson\/PA765\/validity.htm(accessed 10 June 2011)."},{"key":"e_1_2_7_59_2","doi-asserted-by":"publisher","DOI":"10.1080\/10810730.2010.500349"},{"key":"e_1_2_7_60_2","doi-asserted-by":"publisher","DOI":"10.5993\/AJHB.33.5.5"},{"key":"e_1_2_7_61_2","doi-asserted-by":"publisher","DOI":"10.1186\/1477-7525-7-86"}],"container-title":["Journal of Viral Hepatitis"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1111%2Fj.1365-2893.2011.01550.x","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/j.1365-2893.2011.01550.x","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,10,30]],"date-time":"2023-10-30T17:29:40Z","timestamp":1698686980000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/j.1365-2893.2011.01550.x"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2011,11,24]]},"references-count":60,"journal-issue":{"issue":"5","published-print":{"date-parts":[[2012,5]]}},"alternative-id":["10.1111\/j.1365-2893.2011.01550.x"],"URL":"https:\/\/doi.org\/10.1111\/j.1365-2893.2011.01550.x","archive":["Portico"],"relation":{},"ISSN":["1352-0504","1365-2893"],"issn-type":[{"value":"1352-0504","type":"print"},{"value":"1365-2893","type":"electronic"}],"subject":[],"published":{"date-parts":[[2011,11,24]]}}}