The goal is to evaluate whether the number of pain sites or pain estimation with Instant and Constant Osteoarthritis Pain (ICOAP) is related to functional impairment in the lower extremity in people with knee osteoarthritis (KOA).
The main questions it aims to answer are:
1. What is the relationship between the number of pain sites and physical function when adjusted for age, sex, education level, and origin in people with KOA?
2. What is the relationship between pain experience measured with ICOAP (constant and intermittent pain subscales, as well as total score) and reduced physical function when adjusted for age, sex, education level, and origin in people with KOA?
3. What is the relationship between demographic data (age, sex, BMI, origin, level of education) and reduced physical function in people with KOA?
Participants were recruited from five rehabilitation clinics in primary care within the Västra Götaland region, for another study (NCT03855813). Patients with diagnosed KOA were asked to participate in the study. The patients mostly had problems in the knee joint but could also have osteoarthritis (OA) in other joints.
Eligibility
Sex
ALL
Min age
—
Max age
—
Healthy volunteers
No
Inclusion Criteria:
* Patients with diagnosed knee osteoarthritis, could have problems/osteoarthritis in other joints, but the knee joint should have been the most troublesome.
* Independent in walking, with och without walking aids.
* Understand test instructions both verbally and in writing in Swedish.
Exclusion Criteria:
* Neurological problems that affected balance or walking ability.
* Severe or serious somatic or mental illnesses that affected the ability to function or the ability to understand and follow the test instructions.
* Completed knee or hip replacement in the past six months.
* Other knee surgery in the past six months that could affect physical functional capacity.
Primary outcome measure(s)
Physical function — One occasion at baseline Measured with 30 seconds chair stand test. The participant is asked to stand up from a chair as many times as possible during 30 seconds. A higher number of stands indicate a better physical function.
Osteoarthritis pain — One occasion at baseline Osteoarthritis pain will be measured with Measure of Intermittent and Constant Osteoarthritis Pain: ICOAP. The questionnaire consists of two subscales, a) constant pain and b) intermittent pain. The total score ranges between 0 to 100 where 0 means no pain and 100 means extreme pain.
Pain locations — One occasion at baseline Self-reporting pain assessment with pre-defines locations on a pain drawing.
This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.
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