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

Study to Identify the Influence of Different Factors on Workers' Disability Due to Low Back Pain

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT00667316

Enrollment

7300

Registered

2008-04-28

Start date

2008-02-29

Completion date

2021-12-31

Last updated

2025-09-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Low Back Pain

Keywords

low back pain, workers, disability, sick leave

Brief summary

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.

Interventions

BEHAVIORALSet of questionnaires (respondent)

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

Study design

Observational model

OTHER

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

18 Years to 65 Years

Healthy volunteers

Yes

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

Design outcomes

Primary

Measure	Time frame
The influence of different factors on risk of sick leave for low back pain	18 months

Countries

Spain

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026