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The Effect of Widespread Pain on Knee Pain Worsening, Incident Knee Osteoarthritis (OA), and Incident Knee Pain: The Multicenter OA (MOST) Study
Journal article   Open access   Peer reviewed

The Effect of Widespread Pain on Knee Pain Worsening, Incident Knee Osteoarthritis (OA), and Incident Knee Pain: The Multicenter OA (MOST) Study

Lisa C Carlesso, Jingbo Niu, Neil A Segal, Laura A Frey-Law, Cora E Lewis, Michael C Nevitt and Tuhina Neogi
Journal of rheumatology, Vol.44(4), pp.493-498
04/2017
DOI: 10.3899/jrheum.160853
PMCID: PMC5468496
PMID: 28250143
url
https://www.ncbi.nlm.nih.gov/pmc/articles/5468496View
Open Access

Abstract

Whether widespread pain (WSP) affects the risk of developing knee pain or knee osteoarthritis (OA) is unknown and could enhance understanding of pain mechanisms in OA. Subjects from the Multicenter OA (MOST) study, a US National Institutes of Health-funded prospective cohort of older adults with or at risk of knee OA, were characterized regarding WSP, defined as pain above and below the waist on both sides of the body and axially using a standard homunculus, excluding knee pain at 60 months (baseline). Followup occurred 2 years later. We assessed the relation of WSP to odds of knee pain worsening (≥ 2-point increase in the Western Ontario and McMaster Universities Arthritis Index pain subscale) using logistic regression, and to odds of incident radiographic knee OA (ROA; Kellgren-Lawrence arthritis scale ≥ grade 2 of either knee among those free of ROA at baseline) and incident consistent frequent knee pain (CFKP; knee pain on most days during the past month among participants free of knee pain at baseline) in 1 or both knees using multinomial regression adjusting for potential confounders. There were 1752 participants available for analysis [mean age (SD) 67.0 yrs (7.7), body mass index 30.5 kg/m (5.9), 59% women]. Baseline presence of WSP was not associated with worsened knee pain (adjusted OR 1.15, 95% CI 0.89-1.48, p = 0.30), ROA (adjusted OR 0.86, 95% CI 0.46-1.63, p = 0.65), or incident CFKP (adjusted OR 1.69, 95% CI 0.96-2.96, p = 0.07). WSP was not significantly associated with worsening knee pain, incident ROA, or CFKP. Development of knee pain and ROA does not appear to be influenced by underlying WSP.
Severity of Illness Index Pain - epidemiology Humans Knee Joint - physiopathology Middle Aged Knee Joint - diagnostic imaging Male Osteoarthritis, Knee - epidemiology Osteoarthritis, Knee - diagnostic imaging Disease Progression Incidence Pain - diagnostic imaging Pain - physiopathology Female Aged Osteoarthritis, Knee - physiopathology Pain Measurement Longitudinal Studies

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