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NCT Number: NCT03472300

Prevalence of Self-disclosed Knee Trouble and Use of Treatments Among Elderly Individuals

Although knee pain is prevalent among community-dwelling older adults, little is known about how people in general handle their pain. We will conduct a survey to explore how knee pain affects people's lives and which treatments or self-management strategies they have chosen (or are being offered), and how these interact concerning pain reduction and maintenance of function.

Active, Not Recruiting

This study is active but is not currently recruiting participants.

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Key information

Age range

60 year–69 year

Sex eligibility

All sexes

Study type

Observational

Primary location

the Parker Institute, Bispebjerg-Frederiksberg Hospital

Frederiksberg, Danmark, 2000, Denmark

About this study

Although knee pain is prevalent among community-dwelling older adults and frequently leads to consultation in primary care, little is known about how people in general manage their knee pain.

Treatments of knee osteoarthritis include a variety of non-pharmaceutical, medical, and surgical interventions with highly individual and inconsistent results and with the possible exception of a longer lasting weight reduction, none of the non-surgical treatments have been able to demonstrate long-lasting effect on pain or disability.

It is well recognised that patient participation in handling of disease creates better compliance and satisfaction with pharmacological treatment.

Another option for taking active part in self-management is the use of complementary and alternative medicine (CAM). despite their popularity and effect, there is currently no overview of the actual extent of CAMs used for knee pain and disability at a population level, and most CAMs remain to be studied scientifically for efficacy.

The incidence of knee OA shows a steep increase at age above 60 years. Furthermore, after this age an increasing prevalence of disablement to knee trouble is encountered. To prevent this development, measures must be sought to alter the course of knee OA.

By asking people about how knee pain affects their life, which treatments or self-management strategies they have chosen (or are being offered), and how these interact for the reduction of pain and maintenance of function, new knowledge will be gained about the preferences and perceived effectiveness of treatments at large. The information gained will enable the prioritising of research on interventions to be tested and will align this with the primary concerns and interests of the population. This will subsequently lead to better guidance of patients by the health care providers, and will aid decision makers in choosing feasible health care policies and strategies.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Between 60-69 years of age
  • Citizen in the Community of Frederiksberg

Exclusion criteria

  • No formal exclusion criteria but unability to understand/answer our questionnaire is per se an exclusion criteria

Treatment and study plan

Survey about knee pain and treatment

Other

All citizens are surveyed to describe the prevalence of knee pain in a danish community.

Primary outcomes

  1. Self-disclosed knee trouble/pain

    Time frame: 1 Year

    Population incidence of self-disclosed knee trouble/pain

Secondary outcomes

  1. Self-disclosed knee trouble/pain

    Time frame: Annually for 10 years

    Population incidence of self-disclosed knee trouble/pain

  2. Knee injury and Osteoarthritis Outcome Score (KOOS)

    Time frame: Annually for 10 years

    Actual KOOS score and scores over time (respondents who report having knee pain)

  3. Brief Illness Perception Questionnaire (IPQ-B)

    Time frame: Annually for 10 years

    Actual IPQ-B score and scores over time (respondents who report having knee pain). Generic questionnaire developed to measure illness perception. The IPQ-B contains eight items and one causal scale. Items 1-8 are rated using a 0-to-10 response scale, item 9 is a memo field. Five of the items assess cognitive illness representations: consequences (Item 1), timeline (Item 2), personal control (Item 3), treatment control (Item 4), and identity (Item 5). Two of the items assess emotional representations: concern (Item 6) and emotions (Item 8). One item assesses illness comprehensibility (Item 7).

    A low score on items number 1,2,5,6 and 8 indicates that the illness is perceived as benign while a low score on the items 3, 4 and 7 indicates that the illness is perceived as threatening. By reversing these three items it is possible to compute an overall score. A higher score reflects a more threatening view of the illness.

  4. EQ-5D

    Time frame: Annually for 10 years

    Actual EQ-5D score and scores over time (all respondents)

  5. Treatments of all kinds

    Time frame: Annually for 10 years

    To estimate the use of treatments of all kinds (both in the "established" health care system and as self-management), including use of non-pharmacological treatments

  6. Influence of treatments (longitudinal)

    Time frame: Annually for 10 years

    Influence of treatments and their combination on use of health care system including surgical procedures.

Sponsors and collaborators

Lead sponsor

Frederiksberg University Hospital

Other

Registry information

Official study title

Prevalence of Self-disclosed Knee Trouble and Use of Treatments Among Elderly Individuals From Frederiksberg Municipality - A Prospective Cohort Study

Important dates

Study start
2018
Primary completion
2028
Study completion
2028
First posted
Mar 21, 2018
Registry last updated
Aug 8, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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