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Prognostic Factors for Work Disability in Patients With Chronic Widespread Pain and Fibromyalgia.

1. august 2022 oppdatert av: Henning Bliddal, Frederiksberg University Hospital

Prognostic Factors for Work Disability in Patients With Chronic Widespread Pain and Fibromyalgia: Protocol for a Cohort Study

Introduction:

The association between chronic widespread pain (CWP) and disability is well-established. Although research support large inter-individual differences in functional outcomes, limited studies are available on the socio-economic consequences of offering stratified treatment based on prognostic factors. Identification of predictors of long-term functional outcomes such as work disability as a critical consequence, could assist early and targeted personalised interventions. The primary objective of this cohort study is to identify prognostic factors for the primary endpoint work status (employed and working vs not working) in patients with CWP assessed 3- years from baseline, i.e. at referral for specialist care.

Methods and analyses:

Data are collected at the diagnostic unit at Department of Rheumatology, Frederiksberg Hospital. The first 1,000 patients >=18 years of age registered in a clinical research database (DANFIB registry) with CWP either "employed and working" or "not working" will be enrolled. Participants must meet the American College of Rheumatology (ACR) 1990 definition of CWP, i.e. pain in all four body quadrants and axially for more than three months and are additionally screened for fulfilment of criteria for FM. Clinical data and patient-reported outcomes are collected at referral (baseline) through clinical assessment and electronic questionnaires. Data on the primary endpoint work status at baseline and 3- years from baseline will be extracted from the Integrated Labour Market Database, Statistics Denmark and the nationwide Danish DREAM database. Prognostic factor analysis will be based on multivariable logistic regression modelling with the dichotomous work status as dependent variable.

Studieoversikt

Status

Rekruttering

Forhold

Detaljert beskrivelse

By using prognostic factor research, the purpose is to understand and improve future outcomes in patients with CWP. Identification of prognostic factors for long-term functional outcomes, including work disability, could assist tailoring and timing the therapeutic decision for specific patients and potentially optimise functional outcomes compared with offering standardised (i.e. ignorant) intervention programs to patients with CWP.

The results from this cohort study are anticipated to contribute with relevant knowledge that may be used to guide future intervention matching and delivery of stratified interventions based on prognostic classification.

Study design:

The study is designed as a clinical cohort study enabling multivariable logistic regression modelling of data from the large Danish DANFIB cohort of CWP patients with the primary aim assessed after 3- years.

Setting:

Data collection takes place in a specialised clinical care setting at the diagnostic unit at Department of Rheumatology, Frederiksberg Hospital. Here patients presenting with CWP, either as their primary pain problem or secondary to other established rheumatic disease, have been offered clinical assessment and screening for CWP since 1st of January 2018.

The electronic data collection is accessed via touchscreens and data are exported to a designated clinical research database (the DANFIB registry). Data extracted from electronic patient files, including findings at clinical examination (manual TP count), are also integrated into the DANFIB registry. A protocol outlining the content and objectives of the DANFIB registry can be accessed online.The DANFIB registry will serve as point of departure for the current cohort study.

Participants:

The first 1,000 patients consecutively registered in the DANFIB registry with CWP independent of working status. Participant inclusion is expected to be completed by December 2021. Informed consent will be obtained for all participants when registered in the DANFIB registry.

Data sources:

Baseline demographics, clinical characteristics and individual labour market status assessed at baseline will be extracted from the DANFIB registry. Data on the primary endpoint work status ("employed and working" or "not working") at baseline and again 3- years from baseline will be extracted from the Integrated Laboure Market Database at Statistics Denmark and the nationwide Danish DREAM database.

Studietype

Observasjonsmessig

Registrering (Forventet)

1000

Kontakter og plasseringer

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Studiekontakt

Studer Kontakt Backup

Studiesteder

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

18 år og eldre (Voksen, Eldre voksen)

Tar imot friske frivillige

Nei

Kjønn som er kvalifisert for studier

Alle

Prøvetakingsmetode

Ikke-sannsynlighetsprøve

Studiepopulasjon

Chronic widespread pain (CWP) is prevalent in the background population with an estimated prevalence of about 10% and represents a major clinical challenge due to the complexity of the disease. Apart from pain and other centrally mediated symptoms, CWP is strongly associated with disability affecting activities of daily living (ADL), incapacity for normal employment and poor social participation. Fibromyalgia (FM) is the best characterised subset of patients presenting with CWP and is by many considered to represent the upper end of a pain severity spectrum, i.e. associated with greater disease burden and higher levels of disability, in comparison to patients with CWP not fulfilling FM disease criteria or more localized pain conditions.

Beskrivelse

Inclusion Criteria:

participants must:

  • be over 18 years of age
  • able to understand and read Danish
  • have retrievable data in the DANFIB registry

Exclusion Criteria:

  • no consent
  • do not read and understand Danish
  • non-retrievable data in the DANFIB registry
  • any form of pension.

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Observasjonsmodeller: Kohort
  • Tidsperspektiver: Potensielle

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Work status on the overall cohort
Tidsramme: 3 years
To reveal prognostic factors, among the cohort of CWP patients, that are associated with the primary endpoint work status (employed and working vs not working) assessed after 3- years.
3 years

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Work status on those employed and working at baseline
Tidsramme: 3 years
Identification of prognostic factors for work status (employed and working vs not working) after 3- years in patients with CWP, who are employed and working at baseline.
3 years
Work status on those not working at baseline
Tidsramme: 3 years
III. identification of prognostic factors for work status (employed and working vs not working) after 3- years in patients with CWP, who are not working at baseline.
3 years

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Frederiksberg University Hospital

Etterforskere

  • Studiestol: Pernille H. Duhn, dr., Parker Institute

Publikasjoner og nyttige lenker

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Generelle publikasjoner

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Faktiske)

1. januar 2018

Primær fullføring (Forventet)

1. desember 2024

Studiet fullført (Forventet)

1. desember 2024

Datoer for studieregistrering

Først innsendt

23. april 2021

Først innsendt som oppfylte QC-kriteriene

23. april 2021

Først lagt ut (Faktiske)

28. april 2021

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

2. august 2022

Siste oppdatering sendt inn som oppfylte QC-kriteriene

1. august 2022

Sist bekreftet

1. august 2022

Mer informasjon

Begreper knyttet til denne studien

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • PDH4

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

Nei

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

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