Prognostic factors for adolescent knee pain: an individual participant data meta-analysis of 1281 patients

S Holden, J Kasza, M Winters, M van Middelkoop, M S Rathleff, Adolescent knee health group

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Abstrakt

ABSTRACT: Adolescent knee pain has a propensity for chronicity, impacting physical activity and health into adulthood. The aim of this study is to investigate prognostic factors in adolescents with knee pain using Individual Participant Data (IPD) meta-analysis. Studies were identified through a systematic search and a collaborative group. We included IPD from prospective studies of adolescents (age 10 - 19 years) with non-traumatic knee pain (13 studies and 1516 adolescents with 1281 unique participants). Primary outcomes were pain intensity and function (Knee Injury and Osteoarthritis Outcome Score "Sport/Rec" subscale). Primary endpoint was 12-months. Risk of bias was appraised with Quality in Prognosis Studies tool. Harmonised IPD was analysed by multi-level modelling. Fifty-one percent reported knee pain after 12-months. Lower baseline pain frequency was associated with lower pain intensity at 12-months ('less-than weekly'; 12 (95%CI 7 to 17) and 'monthly'; 15 (95%CI 9 to 22) points lower on a 100-point pain scale, compared to 'almost daily pain'). Other factors most strongly associated with one-year pain prognosis were lower quality of life (30, 95%CI 19 to 42 points per unit change in EQ5D index score), female sex (8 points, 95%CI 4 to 12 higher compared to males), and bilateral pain (7, 95%CI 1 to 13 points higher pain). Similar factors were associated with function. Body mass index, pain sensitivity and knee strength were not associated with prognosis of pain or function. Adolescent knee pain is associated with clinically relevant long-term pain and functional deficits. Self-reported characteristics may help identify those at risk of poor prognosis.

OriginalsprogEngelsk
TidsskriftPain
ISSN0304-3959
DOI
StatusE-pub ahead of print - 11 jan. 2021

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