The Influence of Different Factors on Workers' Disability Due to Low Back Pain

NCT ID: NCT00667316

Last Updated: 2025-09-04

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

7300 participants

Study Classification

OBSERVATIONAL

Study Start Date

2008-02-29

Study Completion Date

2021-12-31

Brief Summary

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The purpose of this study is to determine, in Spanish workers, the influence of different factors (personal, psychological, work related and clinical) on the risk of being on sick leave during the 18 months after baseline assessment, and on the duration of that sick leave.

Detailed Description

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Conditions

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Low Back Pain

Study Design

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Observational Model Type

OTHER

Study Time Perspective

PROSPECTIVE

Study Groups

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A

Workers from companies and workers' health care organizations who go for their periodic medical checkup.

Set of questionnaires (respondent)

Intervention Type BEHAVIORAL

A set of questionnaires to determine risk factors for sick leave due to low back pain.

Interventions

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Set of questionnaires (respondent)

A set of questionnaires to determine risk factors for sick leave due to low back pain.

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* Subjects who get their checkups at participating health services
* With a labor contract that won't make it likely that they stop work before the next 18 months, for causes other than their health
* Who sign the informed consent form

Exclusion Criteria

* Don't sign the informed consent form
* Inability to fill our the questionnaires
* Bedridden
* Rheumatologic inflammatory disease, cancer or fibromyalgia
* Suspicion of fibromyalgia
* Red flags for systemic disease
* Criteria for surgery
* Criteria for urgent referral to surgery
Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Kovacs Foundation

OTHER

Sponsor Role lead

Responsible Party

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Francisco M. Kovacs

Director of Scientific Department, Kovacs Foundation

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Francisco M Kovacs, MD, PhD

Role: STUDY_DIRECTOR

Kovacs Foundation, Palma de Mallorca, 07012, Spain

Mario Gestoso, MD

Role: PRINCIPAL_INVESTIGATOR

Kovacs Foundation,Palma de Mallorca, Spain

Locations

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Kovacs Foundation

Palma de Mallorca, Balearic Islands, Spain

Site Status

Countries

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Spain

References

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Guo HR, Tanaka S, Cameron LL, Seligman PJ, Behrens VJ, Ger J, Wild DK, Putz-Anderson V. Back pain among workers in the United States: national estimates and workers at high risk. Am J Ind Med. 1995 Nov;28(5):591-602. doi: 10.1002/ajim.4700280504.

Reference Type BACKGROUND
PMID: 8561169 (View on PubMed)

Turner JA, Franklin G, Fulton-Kehoe D, Sheppard L, Wickizer TM, Wu R, Gluck JV, Egan K. Worker recovery expectations and fear-avoidance predict work disability in a population-based workers' compensation back pain sample. Spine (Phila Pa 1976). 2006 Mar 15;31(6):682-9. doi: 10.1097/01.brs.0000202762.88787.af.

Reference Type BACKGROUND
PMID: 16540874 (View on PubMed)

Kovacs FM, Muriel A, Castillo Sanchez MD, Medina JM, Royuela A; Spanish Back Pain Research Network. Fear avoidance beliefs influence duration of sick leave in Spanish low back pain patients. Spine (Phila Pa 1976). 2007 Jul 15;32(16):1761-6. doi: 10.1097/BRS.0b013e3180b9f5f7.

Reference Type BACKGROUND
PMID: 17632397 (View on PubMed)

Other Identifiers

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FK-I-25

Identifier Type: -

Identifier Source: org_study_id

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