Service user involvement in nursing, midwifery and health visiting research: a review of evidence and practice
Abstract
Objectives In the UK policy recommends that service users (patients, carers and the public) should be involved in all publicly funded health and social care research. However, little is known about which approaches work best in different research contexts and why. The purpose of this paper is to explain some of the theoretical limitations to current understandings of service user involvement and to provide some suggestions for theory and methods development. This paper draws upon findings from a review of the research 'evidence' and current practice on service user involvement in the design and undertaking of nursing, midwifery and health visiting research.Design A multi-method review was commissioned by the NHS Service Delivery and Organisation (SDO) Research and Development Programme. The timeframe was April 2004-March 2005. The full report (Ref: SDO/69/2003) and supplementary bibliography are available from: http://www.sdo.lshtm.ac.uk. REVIEW METHODS/DATA: Initial searches of the health and social care literature and consultations with researchers were used to develop a broad definition of the topic area. A service user reference group (26 members) worked with the project team to refine the scope of the review, to set inclusion criteria and develop a framework for the analysis. Systematic searches of the literature were undertaken online and through library stacks (345 relevant documents were identified). Ongoing and recently completed studies that had involved service users were identified through online databases (34 studies) and through a national consultation exercise (17 studies). Selected studies were followed up using telephone interviews (n=11). Members of the service user reference group worked with the research team to advise on key messages for dissemination to different audiences.Results Information was gained about contextual factors, drivers, concepts, approaches and outcomes of service user involvement in nursing, midwifery and health visiting research, as well as developments in other research fields. Synthesis of this information shows that there are different purposes and domains for user involvement, either as part of researcher-led or user-led research, or as part of a partnership approach. A number of issues were identified as being important for future research. These include: linking different reasons for service user involvement with different outcomes; understanding the relationship between research data and service user involvement, and developing conceptualisations of user involvement that are capable of accommodating complex research relationships. Suggestions for the development of practice include: consideration of diversity, communication, ethical issues, working relationships, finances, education and training.Conclusions Because research is undertaken for different reasons and in different contexts, it is not possible to say that involving service users will, or should, always be undertaken in the same way to achieve the same benefits. At a research project level uniqueness of purpose is a defining characteristic and strength of service user involvement.
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?
Value sets greatly influence PPI processes within a study; and the model of PPI in each study was seen to be influenced by the CI's desired outcomes from the PPI input.
“Value sets greatly influence PPI processes within a study; and relatedly, in turn, the model of PPI in each study was seen to be influenced by the CI's desired outcomes from the PPI input.18”
From ReseArch with Patient and Public invOlvement: a RealisT evaluation – the RAPPORT study (2015) · cites this paper as [18]
In contrast to previous observations that PPI conceptualisations have not addressed the dynamic nature of PPI within research, our analysis, and the framework that it underpins, is able to take into account a dynamic concept of PPI within a research study.
“In contrast to previous observations 18 that PPI conceptualisations have not addressed the dynamic nature of PPI within research, our analysis, and the framework that it underpins, is able to take into account a dynamic concept of PPI within a research study.”
From ReseArch with Patient and Public invOlvement: a RealisT evaluation – the RAPPORT study (2015) · cites this paper as [18]
Cites
A Ladder Of Citizen Participation
Arnstein, S. R. (1969) · Journal of the American Institute of Planners · doi:10.1080/01944366908977225 · Cited by 17,064 · see citing works
Diffusion of Innovations in Service Organizations: Systematic Review and Recommendations
GREENHALGH, T., ROBERT, G., MACFARLANE, F., BATE, P., & KYRIAKIDOU, O. (2004) · The Milbank Quarterly · doi:10.1111/j.0887-378x.2004.00325.x · Cited by 7,448 · see citing works
Using meta ethnography to synthesise qualitative research: a worked example
Britten, N., Campbell, R., Pope, C., Donovan, J., Morgan, M., & Pill, R. (2002) · Journal of Health Services Research & Policy · doi:10.1258/135581902320432732 · Cited by 1,110 · see citing works
Teasdale, G. M. (2002) · British Journal of Neurosurgery · doi:10.1080/02688690220148815 · Cited by 1,063 · see citing works
Systematic review of involving patients in the planning and development of health care
Crawford, M., Rutter, D., Manley, C., Weaver, T., Bhui, K. S., Fulop, N., & Tyrer, P. (2002) · BMJ · doi:10.1136/bmj.325.7375.1263 · Cited by 982 · see citing works
Health and social care in the community
Elliott, M. (1989) · Elderly Care · doi:10.7748/eldc.9.2.22.s18 · Cited by 963 · see citing works
Coulter, A. (1999) · BMJ · doi:10.1136/bmj.319.7212.719 · Cited by 653 · see citing works
Barton, L., Barnes, C., & Oliver, M. (2002) · Polity Press eBooks · Cited by 590 · see citing works
Consumer involvement in health research: a review and research agenda
Boote, J. D., Telford, R., & Cooper, C. L. (2002) · Health Policy · doi:10.1016/s0168-8510(01)00214-7 · Cited by 506 · see citing works
An analysis of the concept of empowerment
Rodwell, C. M. (1996) · Journal of Advanced Nursing · doi:10.1111/j.1365-2648.1996.tb02672.x · Cited by 401 · see citing works
Lay perspectives: advantages for health research
Entwistle, V. A., Renfrew, M. J., Yearley, S., Forrester, J. M., & Lamont, T. (1998) · BMJ · doi:10.1136/bmj.316.7129.463 · Cited by 376 · see citing works
Involving users in the delivery and evaluation of mental health services: systematic review
Simpson, E. L., & House, A. O. (2002) · BMJ · doi:10.1136/bmj.325.7375.1265 · Cited by 350 · see citing works
Hugman, R. (1991) · Bloomsbury Publishing Plc eBooks · doi:10.1007/978-1-349-21485-3 · Cited by 343 · see citing works
Patient participation: a concept analysis
DipN, J. C. (1996) · Journal of Advanced Nursing · doi:10.1046/j.1365-2648.1996.22517.x · Cited by 306 · see citing works
User Involvement in Research and Evaluation: Liberation or Regulation?
Beresford, P. (2002) · Social Policy and Society · doi:10.1017/s1474746402000222 · Cited by 304 · see citing works
Self-citationInvolving the public in NHS public health, and social care research: briefing notes for researchers
Hanley, B., Bradburn, J., Barnes, M., Evans, C., Goodare, H., Kelson, M., Kent, A., Oliver, S. R., Thomas, S. E., & Wallcraft, J. (2004) · Cited by 283 · see citing works
Exploring the concept of user involvement in mental health through a participation continuum
Hickey, G., & Kipping, C. (1998) · Journal of Clinical Nursing · doi:10.1046/j.1365-2702.1998.00122.x · Cited by 207 · see citing works
What do I want from health research and researchers when I am a patient?
Chalmers, I. (1995) · BMJ · doi:10.1136/bmj.310.6990.1315 · Cited by 205 · see citing works
Hanley, B., Truesdale, A., King, A., Elbourne, D., & Chalmers, I. (2001) · BMJ · doi:10.1136/bmj.322.7285.519 · Cited by 184 · see citing works
Croft, S., & Beresford, P. (1992) · Critical Social Policy · doi:10.1177/026101839201203502 · Cited by 184 · see citing works
Self-citationWhat does it mean to involve consumers successfully in NHS research? A consensus study
Telford, R., Boote, J. D., & Cooper, C. L. (2004) · Health Expectations · doi:10.1111/j.1369-7625.2004.00278.x · Cited by 182 · see citing works
Action research from the inside: issues and challenges in doing action research in your own hospital
Coghlan, D., & Casey, M. (2001) · Journal of Advanced Nursing · doi:10.1046/j.1365-2648.2001.01899.x · Cited by 161 · see citing works
Elliott, E., Watson, A. J., & Harries, U. (2002) · Health Expectations · doi:10.1046/j.1369-6513.2002.00158.x · Cited by 153 · see citing works
Pedagogy, power and service user involvement
Felton, A., & Stickley, T. (2004) · Journal of Psychiatric and Mental Health Nursing · doi:10.1111/j.1365-2850.2004.00693.x · Cited by 147 · see citing works
Participation in Research by People with Learning Disability: Origins and Issues
Kiernan, C. (1999) · British Journal of Learning Disabilities · doi:10.1111/j.1468-3156.1999.tb00084.x · Cited by 141 · see citing works
The importance of patient empowerment in health system reform
Segal, L. (1998) · Health Policy · doi:10.1016/s0168-8510(98)00007-4 · Cited by 139 · see citing works
Issues in methodological research: perspectives from researchers and commissioners
Lilford, R. J., Richardson, A., Stevens, A., Fitzpatrick, R., Edwards, S., Rock, F., & Hutton, J. L. (2001) · Health Technology Assessment · doi:10.3310/hta5080 · Cited by 132 · see citing works
Disabled People, Service Users, User Involvement and Representation
Beresford, P., & Campbell, J. (1994) · Disability & Society · doi:10.1080/09687599466780361 · Cited by 129 · see citing works
Self-citationInvolving consumers in a needs‐led research programme: a pilot project
Oliver, S. R., Milne, R., Bradburn, J., Buchanan, P., Kerridge, L., Walley, T., & Gabbay, J. (2001) · Health Expectations · doi:10.1046/j.1369-6513.2001.00113.x · Cited by 111 · see citing works
Involving older people in research: methodological issues
Ross, F., Donovan, S., Brearley, S. A., Victor, C. R., Cottee, M., Crowther, P., & Clark, E. (2005) · Health & Social Care in the Community · doi:10.1111/j.1365-2524.2005.00560.x · Cited by 102 · see citing works
Self-citationComprehension, Apprehension, Prehension: Heterogeneity and the Public Understanding of Science
Michael, M. (2002) · Science Technology & Human Values · doi:10.1177/016224390202700302 · Cited by 99 · see citing works
Critical issues in social research : power and prejudice
Hood, S., Mayall, B., & Oliver, S. R. (1999) · Cited by 96 · see citing works
Poulton, B. C. (1999) · Journal of Advanced Nursing · doi:10.1046/j.1365-2648.1999.01224.x · Cited by 95 · see citing works
Consumerism Versus Empowerment: a principled approach to the involvement of older service users
Barnes, M., & Walker, A. (1996) · Policy & Politics · doi:10.1332/030557396782148417 · Cited by 87 · see citing works
Cambridge, P., & Forrester‐Jones, R. (2003) · Journal of Intellectual & Developmental Disability · doi:10.1080/136682503100008687 · Cited by 87 · see citing works
Paternalism in Nursing and Healthcare: Central Issues and their Relation to Theory
Cody, W. K. (2003) · Nursing Science Quarterly · doi:10.1177/0894318403257170 · Cited by 78 · see citing works
Barnes, D. (2000) · Journal of Interprofessional Care · doi:10.1080/jic.14.2.189.200 · Cited by 74 · see citing works
User involvement in research: Exploring the challenges
Beresford, P. (2003) · Journal of research in nursing · doi:10.1177/136140960300800106 · Cited by 73 · see citing works
Self-citationBarnes, D., Carpenter, J. S. W., & Bailey, D. (2000) · Journal of Interprofessional Care · doi:10.1080/713678554 · Cited by 69 · see citing works
A need to try everything: patient participation in phase I trials
Moore, S. G. (2001) · Journal of Advanced Nursing · doi:10.1046/j.1365-2648.2001.01715.x · Cited by 68 · see citing works
Practice development: ambiguity in research and practice
Clarke, C. L., & Procter, S. (1999) · Journal of Advanced Nursing · doi:10.1046/j.1365-2648.1999.01181.x · Cited by 66 · see citing works
User Controlled Research: Its Meanings and Potential
Langston, A. L. (2006) · Health Expectations · doi:10.1111/j.1369-7625.2006.00408.x · Cited by 63 · see citing works
Thornton, H., Edwards, A., & Elwyn, G. J. (2003) · Health Expectations · doi:10.1046/j.1369-6513.2003.00231.x · Cited by 60 · see citing works
Involving Service Users in Health and Social Care Research
(2013) · Routledge eBooks · doi:10.4324/9780203865651 · Cited by 58 · see citing works
‘Service user’: regressive or liberatory terminology?
Beresford, P. (2005) · Disability & Society · doi:10.1080/09687590500086666 · Cited by 57 · see citing works
Self-citationChallenges of participatory research: reflections on a study with breast cancer self‐help groups
Gray, R. E., Fitch, M. I., Davis, C., & Phillips, C. R. (2000) · Health Expectations · doi:10.1046/j.1369-6513.2000.00100.x · Cited by 55 · see citing works
Voluntariness in Clinical Research at the End of Life
Agrawal, M. K. (2003) · Journal of Pain and Symptom Management · doi:10.1016/s0885-3924(03)00057-5 · Cited by 55 · see citing works
Consumer involvement in decisions about what health-related research is funded
O’Donnell, M., & Entwistle, V. (2004) · Health Policy · doi:10.1016/j.healthpol.2004.04.004 · Cited by 54 · see citing works
The experience of research participation for family caregivers of palliative care cancer patients
Hudson, P. (2003) · International Journal of Palliative Nursing · doi:10.12968/ijpn.2003.9.3.11480 · Cited by 52 · see citing works
Immigrant Women Implementing Participatory Research in Health Promotion
Meyer, M., Torres, S., Cermeño, N., MacLean, L. M., & Monzón, R. (2003) · Western Journal of Nursing Research · doi:10.1177/0193945903256707 · Cited by 49 · see citing works
Academic Consumer Researchers: A Bridge Between Consumers and Researchers
Griffiths, K. M., Jorm, A. F., & Christensen, H. M. (2004) · Australian & New Zealand Journal of Psychiatry · doi:10.1080/j.1440-1614.2004.01337.x · Cited by 49 · see citing works
Involving older people in research to examine quality of life in residential aged care
Edwards, H. E., Courtney, M. D., & OʼReilly, M. (2003) · Quality in Ageing and Older Adults · doi:10.1108/14717794200300027 · Cited by 46 · see citing works
User Involvement in Change Management: A Review of the Literature
Crawford, M., Rutter, D., & Thelwall, S. (2004) · Cited by 45 · see citing works
Overcoming the challenges to consumer involvement in cancer research
Stevens, T., Wilde, D., Hunt, J. W., & Ahmedzai, S. H. (2003) · Health Expectations · doi:10.1046/j.1369-6513.2003.00214.x · Cited by 43 · see citing works
Woundcare Research for Appropriate Products (WRAP): validation of the TELER method involving users
Browne, N., Grocott, P., Cowley, S., et al. (2004) · International Journal of Nursing Studies · doi:10.1016/j.ijnurstu.2003.12.009 · Cited by 42 · see citing works
Capturing users’ experiences of participating in cancer trials
Donovan, J., Brindle, L. A., & Mills, N. (2002) · European Journal of Cancer Care · doi:10.1046/j.1365-2354.2002.00341.x · Cited by 39 · see citing works
Partnership research with older people – moving towards making the rhetoric a reality
Reed, J., Weiner, R., & Cook, G. A. (2004) · Journal of Clinical Nursing · doi:10.1111/j.1365-2702.2004.00920.x · Cited by 39 · see citing works
Disseminating the Results of Participant-Focused Research
Flaskerud, J. H., & Anderson, N. (1999) · Journal of Transcultural Nursing · doi:10.1177/104365969901000412 · Cited by 36 · see citing works
Researching experiences of cancer: the importance of methodology
Entwistle, V. A., Tritter, J. Q., & Calnan, M. F. (2002) · European Journal of Cancer Care · doi:10.1046/j.1365-2354.2002.00344.x · Cited by 33 · see citing works
Kuss, T., Proulx‐Girouard, L., Lovitt, S., et al. (1997) · Public Health Nursing · doi:10.1111/j.1525-1446.1997.tb00276.x · Cited by 33 · see citing works
The client as educator: learning about mental illness through the eyes of the expert
Bennett, L., & Baikie, K. (2003) · Nurse Education Today · doi:10.1016/s0260-6917(02)00193-4 · Cited by 27 · see citing works
Erlen, J. A., Sauder, R. J., & Mellors, M. P. (1999) · Orthopaedic Nursing · doi:10.1097/00006416-199903000-00012 · Cited by 24 · see citing works
Reeve, P., Cornell, S. R., D'Costa, B., et al. (2002) · Psychiatric Rehabilitation Journal · doi:10.1037/h0094996 · Cited by 21 · see citing works
Conducting research involving palliative patients.
Karim, K. (2002) · PubMed · Cited by 20 · see citing works
Involving patients in research ‐ Setting up a service users’ advisory group
Rhodes, P., Nocon, A., Wright, J., & Harrison, S. A. (2001) · Journal of Management in Medicine · doi:10.1108/02689230110394679 · Cited by 19 · see citing works
Community development: theoretical and practical issues for community health nursing in Canada
Chalmers, K. I., & Bramadat, I. J. (1996) · Journal of Advanced Nursing · doi:10.1046/j.1365-2648.1996.24810.x · Cited by 19 · see citing works
Users of health services: following their agenda
Oliver, S. R. (1999) · Cited by 19 · see citing works
What is consumerism and has it had an impact on health visiting provision? A literature review
Almond, P. (2001) · Journal of Advanced Nursing · doi:10.1046/j.1365-2648.2001.01932.x · Cited by 18 · see citing works
Making It Happen: Approaches to Involving Consumers in Cochrane Reviews
Ghersi, D. (2002) · Evaluation & the Health Professions · doi:10.1177/0163278702025003002 · Cited by 16 · see citing works
Community-Based Research: A Tool for Community Empowerment and Student Learning
Kelley, B. R. (1995) · Journal of Nursing Education · doi:10.3928/0148-4834-19951101-11 · Cited by 16 · see citing works
What Difference Does it Make Who is Speaking?
McClimens, A. (2004) · Journal of Learning Disabilities · doi:10.1177/1469004704041706 · Cited by 11 · see citing works
Developing a service-user framework to shape priorities for nursing and midwifery research
Smith, E., Ross, F. M., Mackenzie, A., et al. (2005) · Journal of research in nursing · doi:10.1177/136140960501000101 · Cited by 11 · see citing works
Self-citationInappropriate hospital admissions: patient participation in research
Glasby, J., & Littlechild, R. (2001) · British Journal of Nursing · doi:10.12968/bjon.2001.10.11.10436 · Cited by 9 · see citing works
Citizenship and user-involvement in health provision.
Higgins, R. (1993) · PubMed · Cited by 7 · see citing works
The transforming power of research on practice: Involving practitioners in analysis
Stainton, M. C., Harvey, S. E., McNeil, D. A., et al. (1998) · International Journal of Nursing Practice · doi:10.1046/j.1440-172x.1998.00102.x · Cited by 6 · see citing works
Patient perspectives on participation in a clinical trial of angina management
Dougherty, C. M., Nichol, W. P., Dewhurst, T. A., et al. (1999) · Applied Nursing Research · doi:10.1016/s0897-1897(99)80392-9 · Cited by 5 · see citing works
Yates, B. F. (1997) · Public Health · doi:10.1016/s0033-3506(97)00058-9 · Cited by 5 · see citing works
Collaborative partnerships in evaluation and experimental rehabilitation research
Liberty, K. A., Laver, A. J., & Sabatino, D. (1999) · International Journal of Rehabilitation Research · doi:10.1097/00004356-199912000-00005 · Cited by 3 · see citing works
Consumerism 2: preregistration nursing and midwifery curricula
Fox, J. L. (2003) · British Journal of Nursing · doi:10.12968/bjon.2003.12.6.11246 · Cited by 3 · see citing works
Powerful sharing? Creating effective user groups.
Wray, J. (2003) · PubMed · Cited by 1 · see citing works
Flagged first, then by citations
Cited by
Sorted by citations
Brett, J., Staniszewska, S., Mockford, C., Herron‐Marx, S., Hughes, J., Tysall, C., & Suleman, R. (2014) · Health Expectations · doi:10.1111/j.1369-7625.2012.00795.x · Cited by 1,598 · see citing works
Ocloo, J., Garfield, S., Franklin, B. D., & Dawson, S. (2021) · Health Research Policy and Systems · doi:10.1186/s12961-020-00644-3 · Cited by 460 · see citing works
ReseArch with Patient and Public invOlvement: a RealisT evaluation – the RAPPORT study
Wilson, P., Mathie, E., Keenan, J., McNeilly, E., Goodman, C., Howe, A., Poland, F., Staniszewska, S., Kendall, S., Munday, D., et al. (2015) · Health Services and Delivery Research · doi:10.3310/hsdr03380 · Cited by 297 · see citing works
“Value sets greatly influence PPI processes within a study; and relatedly, in turn, the model of PPI in each study was seen to be influenced by the CI’s desired outcomes from the PPI input.(18) For example, one case study (CS01) recorded only a one-off narrowly defined PPI input, which reflected the CI’s reservations a…”
Patient and public involvement in the design of clinical trials: An overview of systematic reviews
Price, A., Albarqouni, L., Kirkpatrick, J., Clarke, M., Liew, S. M., Roberts, N., & Burls, A. (2018) · Journal of Evaluation in Clinical Practice · doi:10.1111/jep.12805 · Cited by 234 · see citing works
Boote, J., Baird, W., & Beecroft, C. (2010) · Health Policy · doi:10.1016/j.healthpol.2009.11.007 · Cited by 234 · see citing works
Stakeholder involvement in systematic reviews: a scoping review
Pollock, A., Campbell, P., Struthers, C., Synnot, A., Nunn, J., Hill, S., Goodare, H., Morris, J., Watts, C., & Morley, R. (2018) · Systematic Reviews · doi:10.1186/s13643-018-0852-0 · Cited by 180 · see citing works
Evaluating the impact of service user involvement on research: a prospective case study
Barber, R., Beresford, P., Boote, J., Cooper, C., & Faulkner, A. (2011) · International Journal of Consumer Studies · doi:10.1111/j.1470-6431.2011.01017.x · Cited by 107 · see citing works
Self-citationStaley, K., Buckland, S. A., Hayes, H., & Tarpey, M. (2014) · Health Expectations · doi:10.1111/hex.12017 · Cited by 94 · see citing works
Consumer involvement in health research: a <scp>UK</scp> scoping and survey
Mathie, E., Wilson, P., Poland, F., McNeilly, E., Howe, A., Staniszewska, S., Cowe, M., Munday, D., & Goodman, C. (2014) · International Journal of Consumer Studies · doi:10.1111/ijcs.12072 · Cited by 72 · see citing works
- Authors
- Smith, E., Ross, F., Donovan, S., Manthorpe, J., Brearley, S., Sitzia, J., & Beresford, P.
- Affiliations
- King's College London (GB)
- St George's, University of London (GB)
- National Health Service (GB)
- Brunel University of London (GB)
- Corresponding author
- Smith, Elizabeth
- Venue
- International Journal of Nursing Studies
- Publisher
- Elsevier BV
- Published
- 2008-02
- Volume
- 45
- Issue
- 2
- Pages
- 298-315
- ISSN
- 0020-7489 (ISSN-L)
- OpenAlex
- W2012102933
- Cited by
- 113
- References
- 80
- Citations by year
- 2025: 4 · 2024: 1 · 2023: 4 · 2022: 1 · 2021: 4 · 2020: 8 · 2019: 8 · 2018: 7 · 2017: 7 · 2016: 8 · 2015: 7 · 2014: 6 · 2013: 11 · 2012: 11
- FWCI
- 4.48
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- International Journal of Nursing Studies (publishedVersion)
- PubMed (publishedVersion)
- Research Repository (Kingston University London) (submittedVersion)
- Research Portal (King's College London) (submittedVersion)
- LSHTM Research Online (London School of Hygiene and Tropical Medicine) (submittedVersion)
- Topics
- Health Sciences › Health Professions › General Health Professions › Mental Health and Patient Involvement
- Health Sciences › Health Professions › General Health Professions › Community Health and Development
- Health Sciences › Health Professions › General Health Professions › Health Policy Implementation Science
- Keywords
- user participation, patient and public involvement in research, nursing research, midwifery research, user-led research, partnership research, research ethics, caregivers, health and social care research, diversity in research participation
- MeSH terms
- Community Health Nursing, United Kingdom, Midwifery, Nursing, Nursing Research, Evidence-Based Medicine
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