{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T03:01:52Z","timestamp":1760238112065,"version":"build-2065373602"},"reference-count":38,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2020,7,22]],"date-time":"2020-07-22T00:00:00Z","timestamp":1595376000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Funda\u00e7\u00e3o para a Ci\u00eancia e Tecnologia, Portugal","award":["UID04045\/2020"],"award-info":[{"award-number":["UID04045\/2020"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JCM"],"abstract":"<jats:p>The Multidimensional Daily Diary of Fatigue-Fibromyalgia-17 (MDF-fibro-17) is an instrument that measures the different components of fibromyalgia-related fatigue symptoms. The current study aims to examine the factor structure of the MDF-fibro-17 in a sample of Portuguese and Brazilian patients diagnosed with fibromyalgia. Additionally, a cross-cultural analysis was carried out on these samples to understand the multidimensional complexity of examining the different dimensions of fatigue in patients with different cultural backgrounds and how fibromyalgia impacts patients with this syndrome. A confirmatory factor analysis was performed to examine the psychometric properties of the measure. Additionally, a multigroup analysis was carried out on the samples of these two cultures to examine measurement invariance. In total, 209 Portuguese women aged between 21 and 75 years (M = 47.44; SD = 10.73) and 429 Brazilians women aged between 16 and 77 years (M = 46.51; SD = 9.24) participated in this study. The results revealed that the measurement model provided an acceptable fit to the data in both the Portuguese and Brazilian samples, also displaying acceptable convergent and discriminant validity. In addition, the model showed acceptable internal consistency and was invariant between cultures. In sum, the MDF-fibro-17 is a valid measure that offers a unique assessment of fatigue symptoms in Portuguese and Brazilian women with fibromyalgia.<\/jats:p>","DOI":"10.3390\/jcm9082330","type":"journal-article","created":{"date-parts":[[2020,7,22]],"date-time":"2020-07-22T07:31:28Z","timestamp":1595403088000},"page":"2330","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["The Multidimensional Daily Diary of Fatigue-Fibromyalgia-17 Items (MDF-Fibro-17): Evidence from Validity, Reliability and Transcultural Invariance between Portugal and Brazil"],"prefix":"10.3390","volume":"9","author":[{"given":"Marcos C.","family":"\u00c1lvarez","sequence":"first","affiliation":[{"name":"Department of Sport Sciences, University of Beira Interior (UBI), 6201-001 Covilh\u00e3, Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Maria Luiza L.","family":"Albuquerque","sequence":"additional","affiliation":[{"name":"Department of Sport Sciences, University of Beira Interior (UBI), 6201-001 Covilh\u00e3, Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9283-312X","authenticated-orcid":false,"given":"Henrique P.","family":"Neiva","sequence":"additional","affiliation":[{"name":"Department of Sport Sciences, University of Beira Interior (UBI), 6201-001 Covilh\u00e3, Portugal"},{"name":"Research Center in Sport, Health and Humam Development (CIDESD), 5001-801 Vila Real, Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8156-3291","authenticated-orcid":false,"given":"Lu\u00eds","family":"Cid","sequence":"additional","affiliation":[{"name":"Research Center in Sport, Health and Humam Development (CIDESD), 5001-801 Vila Real, Portugal"},{"name":"Sport Science School of Rio Maior, Polytechnique Institute of Santar\u00e9m (ESDRM-IPSantar\u00e9m), 2040-413 Rio Maior, Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1327-8872","authenticated-orcid":false,"given":"Filipe","family":"Rodrigues","sequence":"additional","affiliation":[{"name":"Research Center in Sport, Health and Humam Development (CIDESD), 5001-801 Vila Real, Portugal"},{"name":"Sport Science School of Rio Maior, Polytechnique Institute of Santar\u00e9m (ESDRM-IPSantar\u00e9m), 2040-413 Rio Maior, Portugal"},{"name":"Life Quality Research Center (CIEQV), 2040-413 Rio Maior, Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4587-5903","authenticated-orcid":false,"given":"Diogo S.","family":"Teixeira","sequence":"additional","affiliation":[{"name":"Faculty of Physical Education and Sport (ULHT\/FEFD), University of Lus\u00f3fona, 1749-024 Lisbon, Portugal"},{"name":"Center for the Study of Human Performance (CIPER), 1495-751 Lisbon, Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7179-6814","authenticated-orcid":false,"given":"Diogo","family":"Monteiro","sequence":"additional","affiliation":[{"name":"Research Center in Sport, Health and Humam Development (CIDESD), 5001-801 Vila Real, Portugal"},{"name":"Sport Science School of Rio Maior, Polytechnique Institute of Santar\u00e9m (ESDRM-IPSantar\u00e9m), 2040-413 Rio Maior, Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2020,7,22]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"281","DOI":"10.1515\/reveh-2015-0040","article-title":"Fibromyalgia syndrome pathology and environmental influences on afflictions with medically unexplained symptoms","volume":"31","author":"Albrecht","year":"2016","journal-title":"Rev. Environ. Health"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"358","DOI":"10.1007\/s11916-011-0214-2","article-title":"Exercise therapy for fibromyalgia","volume":"15","author":"Busch","year":"2011","journal-title":"Curr. Pain Headache Rep."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"1211","DOI":"10.1016\/j.jfma.2019.10.018","article-title":"Evaluating soreness symptoms of fibromyalgia: Establishment and validation of the Revised Fibromyalgia Impact Questionnaire with Integration of Soreness Assessment","volume":"119","author":"Chang","year":"2020","journal-title":"J. Formos. Med. Assoc."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"1379","DOI":"10.1007\/s00296-016-3473-8","article-title":"The effects of long- and short-term interdisciplinary treatment approaches in women with fibromyalgia: A randomized controlled trial","volume":"36","author":"Saral","year":"2016","journal-title":"Rheumatol. Int."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"663","DOI":"10.23736\/S1973-9087.17.04876-6","article-title":"Muscle stretching exercises and resistance training in fibromyalgia: Which is better? A three-arm randomized controlled trial","volume":"54","author":"Assumpcao","year":"2018","journal-title":"Eur. J. Phys. Rehabil. Med."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"R86","DOI":"10.1186\/ar3359","article-title":"Improvement in multiple dimensions of fatigue in patients with fibromyalgia treated with duloxetine: Secondary analysis of a randomized, placebo-controlled trial","volume":"13","author":"Arnold","year":"2011","journal-title":"Arthritis Res. Ther."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"562","DOI":"10.1177\/1049909113494748","article-title":"Fatigue in healthy and diseased individuals","volume":"31","author":"Finsterer","year":"2014","journal-title":"Am. J. Hosp. Palliat. Med."},{"key":"ref_8","doi-asserted-by":"crossref","unstructured":"Humphrey, L., Arbuckle, R., Mease, P., Williams, D.A., Samsoe, B.D., and Gilbert, C. (2010). Fatigue in fibromyalgia: A conceptual model informed by patient interviews. BMC Musculoskelet. Disord., 11.","DOI":"10.1186\/1471-2474-11-216"},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"2517","DOI":"10.3899\/jrheum.090139","article-title":"What makes patients with fibromyalgia feel better? correlations between patient global impression of improvement and changes in clinical symptoms and function: A pooled analysis of 4 randomized placebo-controlled trials of duloxetine","volume":"36","author":"Hudson","year":"2009","journal-title":"J. Rheumatol."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"195","DOI":"10.1186\/s12891-017-1544-y","article-title":"Multidimensional daily diary of fatigue-fibromyalgia-17 items (MDF-fibro-17). part 1: Development and content validity","volume":"18","author":"Morris","year":"2017","journal-title":"BMC Musculoskelet. Disord."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"315","DOI":"10.1016\/0022-3999(94)00125-O","article-title":"The multidimensional Fatigue Inventory (MFI) psychometric qualities of an instrument to assess fatigue","volume":"39","author":"Smets","year":"1995","journal-title":"J. Psychosom. Res."},{"key":"ref_12","doi-asserted-by":"crossref","unstructured":"Li, Y., Morris, S., Cole, J., Dube\u2019, S., Smith, J.A.M., Burbridge, C., Symonds, T., Hudgens, S., and Wang, W. (2017). Multidimensional daily diary of fatigue-fibromyalgia-17 items (MDF-fibro-17): Part 2 psychometric evaluation in fibromyalgia patients. BMC Musculoskelet. Disord., 18.","DOI":"10.1186\/s12891-017-1545-x"},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"114","DOI":"10.1016\/j.pec.2008.06.005","article-title":"Patient perspectives on the impact of fibromyalgia","volume":"73","author":"Arnold","year":"2008","journal-title":"Patient Educ. Couns."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"288","DOI":"10.1002\/acr.22417","article-title":"Do cognitive and physical fatigue tasks enhance pain, cognitive fatigue, and physical fatigue in people with fibromyalgia?","volume":"67","author":"Dailey","year":"2015","journal-title":"Arthritis Care Res. (Hoboken)"},{"key":"ref_15","first-page":"1415","article-title":"Fibromyalgia syndrome","volume":"34","author":"Mease","year":"2007","journal-title":"J. Rheumatol."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"398","DOI":"10.3899\/jrheum.080734","article-title":"The efficacy and safety of milnacipran for treatment of fibromyalgia. a randomized, double-blind, placebo-controlled trial","volume":"36","author":"Mease","year":"2009","journal-title":"J. Rheumatol."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"347","DOI":"10.1177\/0734282911406661","article-title":"Testing Measurement Invariance and Comparing Latent Factor Means Within a Confirmatory Factor Analysis Framework","volume":"29","author":"Sass","year":"2011","journal-title":"J. Psychoeduc. Assess."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"E5","DOI":"10.1017\/sjp.2016.6","article-title":"Cross-Cultural Validation of the Basic Psychological Needs in Physical Education Scale between Portugal and Brazil Samples","volume":"19","author":"Cid","year":"2016","journal-title":"Span. J. Psychol."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"622","DOI":"10.1016\/j.psychsport.2013.03.002","article-title":"Cross-cultural Invariance of the Basic Psychological Needs in Exercise Scale and Latent Mean Differences Among Greek, Spanish, Portuguese, and Turkish Samples","volume":"14","author":"Vlachopoulos","year":"2013","journal-title":"Psychol. Exerc. Sport"},{"key":"ref_20","doi-asserted-by":"crossref","unstructured":"He, J., and van de Vijver, F. (2012). Bias and equivalence in cross-cultural research. Online Read. Psychol. Cult., 2.","DOI":"10.9707\/2307-0919.1111"},{"key":"ref_21","doi-asserted-by":"crossref","unstructured":"Karl, J.A., Prado, S.M.M., Gra\u010danin, A., Verhaeghen, P., Ramos, A., Mandal, S.P., Michalak, J., Zhang, C.Q., Schmidt, C., and Tran, U.S. (2020). The Cross-cultural Validity of the Five-Facet Mindfulness Questionnaire Across 16 Countries. Mindfulness.","DOI":"10.1007\/s12671-020-01333-6"},{"key":"ref_22","unstructured":"EpiReuma (2011). Estudo Epidemiol\u00f3gico das Doen\u00e7as Reum\u00e1ticas em Portugal. Soc. Port. Reumatol., 36, 203\u2013204."},{"key":"ref_23","doi-asserted-by":"crossref","unstructured":"Gomes, P., and Campos, C. (2010). Fibromialgia: Abordagem terap\u00eautica. Rev. Port. Med. Geral E Fam., 26.","DOI":"10.32385\/rpmgf.v26i2.10728"},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"448","DOI":"10.1016\/j.semarthrit.2008.12.003","article-title":"Prevalence of fibromyalgia: A survey in five European countries","volume":"39","author":"Branco","year":"2010","journal-title":"Semin Arthritis Rheum"},{"key":"ref_25","doi-asserted-by":"crossref","unstructured":"Souza, J.B., and Perissinotti, D.M.N. (2018). The prevalence of fibromyalgia in Brazil\u2014A population-based study with secondary data of the study on chronic pain prevalence in Brazil. Braz. J. Pain, 1.","DOI":"10.5935\/2595-0118.20180065"},{"key":"ref_26","doi-asserted-by":"crossref","unstructured":"Byrne, B. (2012). Structural Equation Modeling with Mplus. Basic Concepts, Applications, and Programming (Multivariate Application Series), Routledge\/Taylor & Francis Group. [1st ed.].","DOI":"10.4324\/9780203807644"},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"233","DOI":"10.1207\/S15328007SEM0902_5","article-title":"Evaluating Goodness-of-Fit Indexes for Testing Measurement Invariance","volume":"9","author":"Cheung","year":"2002","journal-title":"Struct. Equ. Model. Multidiscip. J."},{"key":"ref_28","first-page":"389","article-title":"Translation and content analysis for oral and written material","volume":"Volume 2","author":"Triandis","year":"1980","journal-title":"Handbook of Cross-Cultural Psychology"},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"374","DOI":"10.1123\/jtpe.19.3.374","article-title":"Translating Questionnaires and Inventories Using a Cross-Cultural Translation Technique","volume":"19","author":"Banville","year":"2000","journal-title":"J. Teach. Phys. Educ."},{"key":"ref_30","unstructured":"Hair, J., Babin, B., Anderson, R., and Black, W. (2019). Multivariate Data Analysis, Pearson Educational, Inc.. [8th ed.]."},{"key":"ref_31","unstructured":"Arbuckle, J.L. (2020, May 02). IBM\u00ae SPSS\u00ae Amos(TM) 23 User Guide. Available online: ftp:\/\/public.dhe.ibm.com\/software\/analytics\/spss\/documentation\/amos\/23.0\/en\/Manuals\/IBM_SPSS_Amos_User_Guide.pdf."},{"key":"ref_32","doi-asserted-by":"crossref","unstructured":"Byrne, B. (2016). Structural Equation Modeling with AMOS. Basic Concepts, Applications, and Programming, Taylor & Francis Group, LLC.. [3rd ed.].","DOI":"10.4324\/9781315757421"},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"320","DOI":"10.1207\/s15328007sem1103_2","article-title":"In Search of Golden Rules: Comment on Hypothesis-Testing Approaches to Setting Cutoff Values for Fit Indexes and Dangers in Overgeneralizing Hu and Bentler\u2018s (1999) Findings","volume":"11","author":"Marsh","year":"2004","journal-title":"Struct. Equ. Model. Multidiscip. J."},{"key":"ref_34","unstructured":"Hair, J., Black, W., and Anderson, R. (2014). Multivariate Data Analysis, Pearson Educational, Inc.. [7th ed.]."},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"464","DOI":"10.1080\/10705510701301834","article-title":"Sensitivity of Goodness of Fit Indexes to Lack of Measurement Invariance","volume":"14","author":"Chen","year":"2007","journal-title":"Struct. Equ. Model. Multidiscip. J."},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"353","DOI":"10.1207\/S15328007SEM0803_2","article-title":"Performance of Bootstrapping Approaches to Model Test Statistics and Parameter Standard Error Estimation in Structural Equation Modeling","volume":"8","author":"Nevitt","year":"2001","journal-title":"Struct. Equ. Model. Multidiscip. J."},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"459","DOI":"10.1111\/1756-185X.12640","article-title":"Cross-cultural adaptation of the Revised Korean version of the Fibromyalgia Impact Questionnaire: Its association with physical function and quality of life","volume":"19","author":"Seo","year":"2015","journal-title":"Int. J. Rheum. Dis."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"1609","DOI":"10.1007\/s00296-015-3262-9","article-title":"Validation and cross-cultural adaptation of the \u2018Fibromyalgia Participation Questionnaire\u2019 to the Spanish population: Study protocol","volume":"35","year":"2015","journal-title":"Rheumatol. Int."}],"container-title":["Journal of Clinical Medicine"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2077-0383\/9\/8\/2330\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T09:50:42Z","timestamp":1760176242000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2077-0383\/9\/8\/2330"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,7,22]]},"references-count":38,"journal-issue":{"issue":"8","published-online":{"date-parts":[[2020,8]]}},"alternative-id":["jcm9082330"],"URL":"https:\/\/doi.org\/10.3390\/jcm9082330","relation":{},"ISSN":["2077-0383"],"issn-type":[{"type":"electronic","value":"2077-0383"}],"subject":[],"published":{"date-parts":[[2020,7,22]]}}}