Osteoarthritis

Atopy is associated with osteoarthritis severity: Results from the KHOALA cohort

Joint Bone SpinePublished Prospective cohort study

Main finding · End-stage radiographic OA (Kellgren-Lawrence grade 4)Result — go to the resultAdjusted odds ratio 2.46 CI 1.42–4.25

Authors' conclusion

Atopy appears to be associated with the radiographic OA severity and increased requirement of knee joint replacement.

Study context

Population
French multicentre KHOALA cohort of patients with knee and/or hip osteoarthritis (OA); mean age 65.2 years, 68% women, mean BMI 29.3kg/m²
Participants
66 vs 651
Exposure
Atopic vs non-atopic patients with knee and/or hip OA
  • Atopicn = 66
  • Non-atopicn = 651reference
Outcome
Symptomatic (WOMAC pain, stiffness, function) and structural (end-stage radiographic OA, Kellgren-Lawrence grade 4) severity of knee and hip OA
Methodological detailsmulticentre
  • Multicentre

Main finding

As reported in the abstract

End-stage radiographic OA (Kellgren-Lawrence grade 4)

Adjusted odds ratio

2.46

CI 1.42–4.25

P = 0.001

By group

Atopicvs Non-atopic
aOR 2.46 (CI 1.42–4.25); P = 0.001

Observational data: associations, not effects.

Further findings

OutcomeHR (95% CI)P value
TKR in knee OA · 7 yearsAdjusted for age, sex and BMI1.99 (1.15–3.45)P = 0.01
OutcomeP value
WOMAC pain score (/20)Unadjusted; non-significant after adjustment · association became non-significant after adjustmentP < 0.05

Total knee replacement (TKR) in knee OA · 7 years

Atopy associated with a two-fold increase in the risk of TKR

WOMAC function and stiffness

Atopy not associated with worse functional limitations or stiffness

Parts of this Brief are withheld: the automatic checks could not confirm them against the abstract.

Original publication

Atopy is associated with osteoarthritis severity: Results from the KHOALA cohort. Joint Bone Spine. Published 17 August 2026. doi:10.1016/j.jbspin.2026.106122

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