Pain characteristics in fibromyalgia: understanding the multiple dimensions of pain
Abstract
Fibromyalgia is a common disease with a high economic burden. The etiology of this disease remains unclear, as there are no specific abnormalities on clinical or technical examinations. Evidence suggests that central pain sensitization at the brain pain matrix might be involved. Understanding the pain characteristics of this disease is of importance both for diagnosis and treatment. The authors present their findings of pain characteristics in a Belgium population of fibromyalgia patients. Data of 65 patients (57 male and 8 female patients) were analyzed in this study (mean age 46.86, SD = +8.79). Patients filled out the following questionnaires: visual analogue scale, fibromyalgia impact questionnaire, pain-catastrophizing scale, pain vigilance and awareness questionnaire, modified fatigue impact scale, the Beck depression inventory, the short form 36 and the Dutch shortened profile of mood states. Statistical analysis was performed making use of a factor analysis and a hierarchical cluster analysis. We were able to define pain characteristics in this group of patients. The reciprocal effects of mood and fatigue on pain experience could be identified within the data, catastrophizing scores show a high correlation with overall life quality and pain experience. We have performed a cluster analysis on the fibromyalgia patients, based on the four main principal components defining the overall disease burden. Mood explained most of the variance in symptoms, followed by mental health state, fatigue, and catastrophizing. Three clusters of patients could be revealed by these components. Clusters: 1 high scores on mood disorders, pain, and decreased mental health, 2 high scores on fatigue and physical health, and 3 a mixture of these two groups. This data suggest that different subgroups of fibromyalgia patients could be identified and based on that, treatment strategies and results might be adapted.
Integrity signals
Registry
Cites
Statistics
Claims the paper makes
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
In people with chronic low back pain, musculoskeletal pain, and other chronic pain complaints, catastrophizing is associated with greater pain intensity, pain disability, and psychological distress, even after controlling for physical impairment.
“For individuals with chronic low back pain, musculoskeletal pain, and other miscellaneous chronic pain complains, catastrophizing is associated with increased pain intensity, pain disability, and psychological distress, even when controlling for level of physical impairment 295, 296.”
From Evaluating psychosocial contributions to chronic pain outcomes (2018) · cites this paper as [296]
Cites
(1992) · PubMed · Cited by 33,716 · see citing works
The MOS 36-ltem Short-Form Health Survey (SF-36): I. Conceptual Framework and Item Selection
Ware, J. E., & Sherbourne, C. D. (1992) · Medical Care · doi:10.1097/00005650-199206000-00002 · Cited by 30,033 · see citing works
The american college of rheumatology 1990 criteria for the classification of fibromyalgia
Wolfe, F., Smythe, H. A., Yunus, M. B., Bennett, R. M., Bombardier, C., Goldenberg, D. L., Tugwell, P., Campbell, S. M., Abeles, M., Clark, P., et al. (1990) · Arthritis & Rheumatism · doi:10.1002/art.1780330203 · Cited by 9,563 · see citing works
Central sensitization: implications for the diagnosis and treatment of pain
Woolf, C. J. (2011) · Pain · doi:10.1016/j.pain.2010.09.030 · Cited by 4,771 · see citing works
Cognitive and emotional control of pain and its disruption in chronic pain
Bushnell, M. C., Čeko, M., & Low, L. A. (2013) · Nature Reviews Neuroscience · doi:10.1038/nrn3516 · Cited by 2,076 · see citing works
Measuring the Functional Impact of Fatigue: Initial Validation of the Fatigue Impact Scale
Fisk, J. D., Ritvo, P. G., Ross, L., Haase, D. A., Marrie, T. J., & Schlech, W. F. (1994) · Clinical Infectious Diseases · doi:10.1093/clinids/18.supplement_1.s79 · Cited by 1,546 · see citing works
On the Validity of the Beck Depression Inventory
Richter, P., Werner, J., Heerlein, A., Kraus, A., & Sauer, H. (1998) · Psychopathology · doi:10.1159/000066239 · Cited by 1,113 · see citing works
Factor structure, reliability, and validity of the Pain Catastrophizing Scale
Osman, A., Barrios, F. X., Kopper, B. A., Hauptmann, W., Jones, J., & O'Neill, E. (1997) · Journal of Behavioral Medicine · doi:10.1023/a:1025570508954 · Cited by 881 · see citing works
Worldwide epidemiology of fibromyalgia
Queiroz, L. P. (2013) · Current Pain and Headache Reports · doi:10.1007/s11916-013-0356-5 · Cited by 826 · see citing works
Chronic pain epidemiology and its clinical relevance
van Hecke, O., Torrance, N., & Smith, B. H. (2013) · British Journal of Anaesthesia · doi:10.1093/bja/aet123 · Cited by 632 · see citing works
Phantom percepts: Tinnitus and pain as persisting aversive memory networks
Ridder, D. D., Elgoyhen, A. B., Romo, R., & Langguth, B. (2011) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1018466108 · Cited by 619 · see citing works
Bennett, R. M. (2005) · PubMed · Cited by 618 · see citing works
Demyttenaere, K., Bruffaerts, R., Lee, S., Posada-Villa, J., Kovess, V., Angermeyer, M. C., Levinson, D., de Girolamo, G., Nakane, H., Mneimneh, Z., et al. (2007) · Pain · doi:10.1016/j.pain.2007.01.022 · Cited by 608 · see citing works
Sawamoto, N., Honda, M., Okada, T., Hanakawa, T., Kanda, M., Fukuyama, H., Konishi, J., & Shibasaki, H. (2000) · Journal of Neuroscience · doi:10.1523/jneurosci.20-19-07438.2000 · Cited by 522 · see citing works
Catastrophizing and pain in arthritis, fibromyalgia, and other rheumatic diseases
Edwards, R. R., Bingham, C. O., Bathon, J. M., & Haythornthwaite, J. A. (2006) · Arthritis Care & Research · doi:10.1002/art.21865 · Cited by 511 · see citing works
“Attention” to pain in persons with chronic pain: A behavioral approach
McCracken, L. M. (1997) · Behavior Therapy · doi:10.1016/s0005-7894(97)80047-0 · Cited by 483 · see citing works
Neurobiology of depression, fibromyalgia and neuropathic pain
Maletic, V. (2009) · Frontiers in bioscience · doi:10.2741/3598 · Cited by 369 · see citing works
Central pain mechanisms in chronic pain states – Maybe it is all in their head
Phillips, K., & Clauw, D. J. (2011) · Best Practice & Research Clinical Rheumatology · doi:10.1016/j.berh.2011.02.005 · Cited by 331 · see citing works
Improving the Recognition and Diagnosis of Fibromyalgia
Arnold, L. M., Clauw, D. J., & McCarberg, B. H. (2011) · Mayo Clinic Proceedings · doi:10.4065/mcp.2010.0738 · Cited by 226 · see citing works
Effects of catastrophizing on pain perception and pain modulation
Weissman-Fogel, I., Sprecher, E., & Pud, D. (2008) · Experimental Brain Research · doi:10.1007/s00221-007-1206-7 · Cited by 214 · see citing works
Fibromyalgia diagnosis and diagnostic criteria
Wolfe, F., & Häuser, W. (2011) · Annals of Medicine · doi:10.3109/07853890.2011.595734 · Cited by 178 · see citing works
The role of gender in fibromyalgia syndrome
Yunus, M. B. (2001) · Current Rheumatology Reports · doi:10.1007/s11926-001-0008-3 · Cited by 166 · see citing works
Comorbidity of pain and anxiety disorders
Gureje, O. (2008) · Current Psychiatry Reports · doi:10.1007/s11920-008-0051-0 · Cited by 125 · see citing works
Gender differences in fibromyalgia and other related syndromes.
Yunus, M. B. (2002) · PubMed · Cited by 112 · see citing works
Gureje, O. (2006) · Current Opinion in Psychiatry · doi:10.1097/yco.0b013e328010ddf4 · Cited by 98 · see citing works
de Souza, J. B., Goffaux, P., Julien, N., Potvin, S., Charest, J., & Marchand, S. (2008) · Rheumatology International · doi:10.1007/s00296-008-0722-5 · Cited by 89 · see citing works
Nociception and autonomic nervous system
Cortelli, P., Giannini, G., Favoni, V., Cevoli, S., & Pierangeli, G. (2013) · Neurological Sciences · doi:10.1007/s10072-013-1391-z · Cited by 81 · see citing works
Campbell, C. M., McCauley, L., Bounds, S. C., Mathur, V. A., Conn, L., Simango, M., Edwards, R. R., & Fontaine, K. R. (2012) · Arthritis Research & Therapy · doi:10.1186/ar4073 · Cited by 66 · see citing works
Awareness of diagnostic and clinical features of fibromyalgia among family physicians
Buskila, D. (1997) · Family Practice · doi:10.1093/fampra/14.3.238 · Cited by 61 · see citing works
Patterns of healthcare utilization and cost in patients with newly diagnosed fibromyalgia.
Berger, A., Sadosky, A., Dukes, E. M., Edelsberg, J., Zlateva, G., & Oster, G. (2010) · PubMed · Cited by 57 · see citing works
Predictors of the Pain Perception and Self-Efficacy for Pain Control in Patients with Fibromyalgia
Sánchez, A. I., Martínez, M. P., Miró, E., & Medina, A. (2011) · The Spanish Journal of Psychology · doi:10.5209/rev_sjop.2011.v14.n1.33 · Cited by 51 · see citing works
Rhudy, J. L., France, C. R., Bartley, E. J., Williams, A. E., McCabe, K. M., & Russell, J. L. (2009) · Journal of Pain · doi:10.1016/j.jpain.2009.02.005 · Cited by 47 · see citing works
Perrot, S., Schaefer, C. P., Knight, T. G., Hufstader, M. A., Chandran, A., & Zlateva, G. (2012) · BMC Musculoskeletal Disorders · doi:10.1186/1471-2474-13-22 · Cited by 42 · see citing works
Homann, D., Stefanello, J. M. F., Góes, S. M., Breda, C. A., Paiva, E. D. S., & Leite, N. (2012) · Revista Brasileira de Reumatologia · doi:10.1590/s0482-50042012000300003 · Cited by 36 · see citing works
Salaffi, F., & Sarzi‐Puttini, P. (2013) · PubMed · Cited by 31 · see citing works
Are We Profiling Patients with Fibromyalgia?
Camerlain, M., & Myhal, G. (2009) · Pain Research and Management · doi:10.1155/2009/909457 · Cited by 4 · see citing works
Flagged first, then by citations
2 of the 38 references couldn’t be matched to a known paper.
Cited by
Sorted by citations
Evaluating psychosocial contributions to chronic pain outcomes
Meints, S. M., & Edwards, R. R. (2018) · Progress in Neuro-Psychopharmacology and Biological Psychiatry · doi:10.1016/j.pnpbp.2018.01.017 · Cited by 719 · see citing works
Pain Catastrophizing and Function In Individuals With Chronic Musculoskeletal Pain
Martínez-Calderón, J., Jensen, M. P., Morales‐Asencio, J. M., & Luque-Suárez, A. (2019) · Clinical Journal of Pain · doi:10.1097/ajp.0000000000000676 · Cited by 196 · see citing works
Ericsson, A., Palstam, A., Larsson, A., Löfgren, M., Bilevičiūtė-Ljungar, I., Bjersing, J. L., Gerdle, B. U. C., Kosek, E., & Mannerkorpi, K. (2016) · Arthritis Research & Therapy · doi:10.1186/s13075-016-1073-3 · Cited by 91 · see citing works
Pain and fatigue variability patterns distinguish subgroups of Fibromyalgia patients
Bartley, E. J., Robinson, M. E., & Staud, R. (2018) · The Journal of Pain · doi:10.1016/j.jpain.2017.11.014 · Cited by 83 · see citing works
A Cross-Sectional Study on Central Sensitization and Autonomic Changes in Fibromyalgia
Hazra, S., Venkataraman, S., Handa, G., Yadav, S., Wadhwa, S., Singh, U. P., Kochhar, K. P., Deepak, K. K., & Sarkar, K. (2020) · Frontiers in Neuroscience · doi:10.3389/fnins.2020.00788 · Cited by 54 · see citing works
The management of fibromyalgia from a psychosomatic perspective: an overview
Sancassiani, F., Machado, S. E. D. C., Ruggiero, V., Cacace, E., Carmassi, C., Gesi, C., Dell’Osso, L., & Carta, M. G. (2017) · International Review of Psychiatry · doi:10.1080/09540261.2017.1320982 · Cited by 51 · see citing works
Ridder, D. D., & Vanneste, S. (2016) · Neurotherapeutics · doi:10.1007/s13311-016-0493-8 · Cited by 50 · see citing works
Self-citationTürkoğlu, G., & Selvı, Y. (2019) · Chronobiology International · doi:10.1080/07420528.2019.1684314 · Cited by 44 · see citing works
Neuronutritional Approach to Fibromyalgia Management: A Narrative Review
Badaeva, A. V., Danilov, A. B., Kosareva, A., Lepshina, M., Novikov, V. N., Vorobyeva, Y. D., & Ab, D. (2024) · Pain and Therapy · doi:10.1007/s40122-024-00641-2 · Cited by 29 · see citing works
Işık-Ulusoy, S. (2019) · Brazilian Journal of Psychiatry · doi:10.1590/1516-4446-2018-0057 · Cited by 30 · see citing works
Cluster analysis in fibromyalgia: a systematic review
Gianlorenço, A. C., Costa, V., Fabris-Moraes, W., Menacho, M. D. O., Alves, L. G., Martínez-Magallanes, D., & Fregni, F. (2024) · Rheumatology International · doi:10.1007/s00296-024-05616-2 · Cited by 28 · see citing works
Vilarino, G. T., Branco, J. H. L., de Souza, L. C., & Andrade, A. (2022) · Irish Journal of Medical Science (1971 -) · doi:10.1007/s11845-022-03205-5 · Cited by 28 · see citing works
Martínez, M. P., Sánchez, A. I., Prados, G., Lami, M. J., Villar, B., & Miró, E. (2021) · The Spanish Journal of Psychology · doi:10.1017/sjp.2021.30 · Cited by 24 · see citing works
Behavioral, Psychological, Neurophysiological, and Neuroanatomic Determinants of Pain
Meints, S. M., Edwards, R. R., Gilligan, C. J., & Schreiber, K. L. (2020) · Journal of Bone and Joint Surgery · doi:10.2106/jbjs.20.00082 · Cited by 23 · see citing works
Britto, A., Rodrigues, V. P., dos Santos, A. M., Rizzini, M., Britto, P., Britto, L., & Garcia, J. B. S. (2020) · Musculoskeletal Care · doi:10.1002/msc.1481 · Cited by 25 · see citing works
Megía‐García, Á., Serrano‐Muñoz, D., Bravo-Esteban, E., Ando-Lafuente, S., Avendaño‐Coy, J., & Gómez‐Soriano, J. (2018) · Atención Primaria · doi:10.1016/j.aprim.2018.03.010 · Cited by 22 · see citing works
Two sides on the fibromyalgia coin: physical pain and social pain (invalidation)
Ghavidel‐Parsa, B., & Bidari, A. (2020) · Clinical Rheumatology · doi:10.1007/s10067-020-05304-z · Cited by 25 · see citing works
Pilates training improves pain and quality of life of women with fibromyalgia syndrome
Komatsu, M. O., Ávila, M. A., Colombo, M. M., Gramani‐Say, K., & Driusso, P. (2016) · Revista Dor · doi:10.5935/1806-0013.20160088 · Cited by 20 · see citing works
Polypharmacy, Opioid Use, and Fibromyalgia
Menzies, V. S., Thacker, L. R., Mayer, S. D., Young, A. M. P., Evans, S. L., & Barstow, L. (2016) · Biological Research For Nursing · doi:10.1177/1099800416657636 · Cited by 20 · see citing works
Ibáñez‐Vera, A. J., García-Romero, J., Alvero‐Cruz, J. R., & Lomas‐Vega, R. (2020) · International Journal of Environmental Research and Public Health · doi:10.3390/ijerph17072465 · Cited by 19 · see citing works
ASSOCIATION OF DEPRESSION IN PATIENTS WITH FIBROMYALGIA SYNDROME
Tahir, A., Fatima, A., & Khan, M. T. (2022) · Pakistan Journal of Rehabilitation · doi:10.36283/pjr.zu.11.1/021 · Cited by 14 · see citing works
Fernández‐de‐las‐Peñas, C., Valera‐Calero, J. A., Arendt‐Nielsen, L., Martín‐Guerrero, J. D., Cigarán‐Méndez, M., Navarro‐Pardo, E., & Pellicer-Valero, Ó. J. (2022) · Pain Medicine · doi:10.1093/pm/pnac206 · Cited by 12 · see citing works
Liew, B. X. W., Valera‐Calero, J. A., Varol, U., Nijs, J., Arendt‐Nielsen, L., Plaza‐Manzano, G., & Fernández‐de‐las‐Peñas, C. (2022) · Biomedicines · doi:10.3390/biomedicines10051188 · Cited by 12 · see citing works
Emotional arousal and valence in patients with fibromyalgia: a pilot study
Ciuffini, R., Cofini, V., Muselli, M., Necozione, S., Piroli, A., & Marrelli, A. (2023) · Frontiers in Pain Research · doi:10.3389/fpain.2023.1075722 · Cited by 8 · see citing works
Plazier, M., Tchen, S., Ost, J., Joos, K., Ridder, D. D., & Vanneste, S. (2015) · Neuromodulation Technology at the Neural Interface · doi:10.1111/ner.12340 · Cited by 10 · see citing works
Self-citationAnderson, L., Ridder, D. D., Glue, P., Mani, R., van Sleeuwen, C., Smith, M. L., & Adhia, D. B. (2025) · Scientific Reports · doi:10.1038/s41598-024-83776-8 · Cited by 10 · see citing works
Sanromán, L., Catalá, P., Écija, C., Suso‐Ribera, C., Román, J. S., & Peñacoba, C. (2022) · International Journal of Environmental Research and Public Health · doi:10.3390/ijerph19074198 · Cited by 9 · see citing works
Nithuthorn, C., Chaipichit, N., Jeeraaumponwat, T., Maiprasert, M., & Dilokthornsakul, P. (2024) · Journal of Clinical Medicine · doi:10.3390/jcm13237447 · Cited by 8 · see citing works
Peak expiratory flow rate and thoracic mobility in people with fibromyalgia. A cross sectional study
Jonsson, K., & Peterson, M. (2019) · Scandinavian Journal of Pain · doi:10.1515/sjpain-2019-0044 · Cited by 8 · see citing works
Cavicchioli, M., Caruso, A., Scalabrini, A., Torelli, A., Bottiroli, S., Pichiecchio, A., Prodi, E., Cangelosi, M., Lai, C., Vitali, P., et al. (2025) · Neuroscience & Biobehavioral Reviews · doi:10.1016/j.neubiorev.2025.106303 · Cited by 7 · see citing works
Curtis, A. F., Nair, N., Hayse, B., McGovney, K., Mikula, C. M., Halder, P., Craggs, J. G., Kiselica, A. M., & McCrae, C. S. (2023) · Journal of Clinical Sleep Medicine · doi:10.5664/jcsm.10860 · Cited by 7 · see citing works
Fischer-Jbali, L. R., Alacreu‐Crespo, A., Galvez-Sánchez, C. M., & Montoro, C. I. (2024) · International Journal of Psychophysiology · doi:10.1016/j.ijpsycho.2024.112327 · Cited by 5 · see citing works
Santos, C. E. M., Rodrigues, V. P., de Oliveira, I. C. V., de Assis, D. S. F. R., de Oliveira, M. M., & Conti, C. F. (2019) · CRANIO® · doi:10.1080/08869634.2019.1650215 · Cited by 6 · see citing works
Akintayo, R. O., Adelowo, O. O., Ahmed, B. A., Olafimihan, K. O., & Olatunde, O. A. (2020) · International Journal of Rheumatic Diseases · doi:10.1111/1756-185x.13865 · Cited by 5 · see citing works
Kaouk, S., Wilke, W. S., & Gota, C. E. (2018) · International Journal of Clinical Rheumatology · doi:10.4172/1758-4272.1000166 · Cited by 5 · see citing works
Effects of Hydrotherapy on Postural Control of Women with Fibromyalgia Syndrome: A Single Arm Study
Trevisan, D. C., Ávila, M. A., Driusso, P., Say, K. G., Araújo-Moreira, F. M., & Parizotto, N. A. (2015) · MYOPAIN · doi:10.1080/24708593.2017.1300205 · Cited by 4 · see citing works
Impact of fibromyalgia syndrome on quality of life in patients with Behçet’s disease
Garip, Y. (2016) · Türkiye Fiziksel Tıp ve Rehabilitasyon Dergisi · doi:10.5606/tftrd.2016.81226 · Cited by 1 · see citing works
Psychosomatic Approach to Fibromyalgia Syndrome: Medical, Psychological, and Social Aspects
Martínez-Quiñones, J. V., Gamarra, M. M., & Jáuregui‐Lobera, I. (2020) · IntechOpen eBooks · doi:10.5772/intechopen.91768 · Cited by 1 · see citing works
Hirst, A., Mountford, R., Berwick, R., Christiansen, P., Sandin, S., Yin, W., Andersson, D. A., Happe, F. G. E., Fallon, N. B., & Göebel, A. (2025) · medRxiv · doi:10.1101/2025.10.20.25336737 · Cited by 1 · see citing works
Multiple-Site Pain in Fibromyalgia- A Confirmatory Factor Analysis
YLINEN, J. J. (2018) · Journal of Yoga and Physiotherapy · doi:10.19080/jyp.2018.05.555663
The Role of Catastrophizing in the Benefits of Walking on Fatigue in Women with FibromyalgiaPreprint
Sanromán, L., Catalá, P., Écija, C., Suso‐Ribera, C., Román, J. S., & Peñacoba, C. (2021) · Research Square · doi:10.21203/rs.3.rs-416427/v1
Global Opioid Crisis: Two Sides of the Same Coin
García, M. M., Paniagua, N., & Delgado, E. M. (2024) · Springer eBooks · doi:10.1007/978-3-031-47620-4_8
Kulshreshtha, P., Neyaz, O., Goel, A., Barde, P., Mukherjee, D., Deepak, K., & Kathrotia, R. (2023) · Medical Research Archives · doi:10.18103/mra.v11i12.4835
Allen, J., Göebel, A., & Fallon, N. B. (2026) · British Journal of Pain · doi:10.1177/20494637261447443
- Authors
- Plazier, M., Ost, J., Stassijns, G., De Ridder, D., & Vanneste, S.
- Affiliations
- Antwerp University Hospital (BE)
- The University of Texas at Dallas (US)
- Corresponding author
- Plazier, Mark
- Venue
- Clinical Rheumatology
- Published
- 2014-07-22
- Volume
- 34
- Issue
- 4
- Pages
- 775-783
- ISSN
- 0770-3198 (ISSN-L)
- 1434-9949
- OpenAlex
- W2009975712
- Cited by
- 45
- References
- 38
- Citations by year
- 2026: 1 · 2025: 3 · 2024: 5 · 2023: 3 · 2022: 5 · 2021: 2 · 2020: 7 · 2019: 5 · 2018: 4 · 2017: 3 · 2016: 5 · 2015: 2
- FWCI
- 2.54
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- www.springer.com/tdm (tdm)
- Locations
- Clinical Rheumatology (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Medicine › Psychiatry and Mental health › Fibromyalgia and Chronic Fatigue Syndrome Research
- Health Sciences › Medicine › Pharmacology › Musculoskeletal pain and rehabilitation
- Health Sciences › Medicine › Psychiatry and Mental health › Psychosomatic Disorders and Their Treatments
- Keywords
- fibromyalgia, pain characteristics, central sensitization, pain catastrophizing, fatigue, mood disorders, depression, quality of life, patient subgroups, disease burden, patient heterogeneity
- MeSH terms
- Adult, Affect, Aged, Awareness, Back Pain, Belgium, Depression, Female, Fibromyalgia, Humans, Male, Middle Aged, Pain, Pain Measurement, Surveys and Questionnaires, Retrospective Studies, Cluster Analysis, Mood Disorders, Principal Component Analysis, Young Adult
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review