Rheumatoid arthritis

Impact of non-serious infections on medication interruptions, quality of life, and disease flares in patients with rheumatoid arthritis

Rheumatology (Oxford)Published Prospective cohort study

Authors' conclusion

Infections are common in patients with RA and frequently lead to medication interruptions. These infections are associated with greater fatigue and impaired work productivity and may contribute to more disease flares.

Study context

Population
Adults with RA recruited remotely July 2022–July 2023 through a community rheumatology practice-based research network (ArthritisPower Registry)1,674 monthly observations
Participants
351 adults
Exposure
Observations with vs without an infection
Outcome
Frequency and characteristics of non-serious infections and their effect on medication interruptions, quality of life and disease flares
Methodological detailsremote recruitment, registry-based, monthly follow-up surveys
  • Remote recruitment
  • Registry-based
  • Monthly follow-up surveys

Main finding

As reported in the abstract

Infections reported (most frequently upper respiratory infections)

523

31% of observations

Infections leading to missed work

37%

Infections leading to RA treatment interruptions

26%

Observational data: associations, not effects.

Further findings

RA treatment interruptions, with vs without health-care encounters or antibiotic use

With vs without health-care encounters or antibiotic use
38% vs 12%

RA treatment interruptions, more vs less severe infections

More severe vs less severe infections
47% vs 20%

Patient-reported outcomes (PROs) with vs without infection

Infections associated with worse fatigue scores but not function, depression or social participation

Disease flares

Flares more frequent in those with an infection who interrupted RA treatment, especially on TNFi

Original publication

Impact of non-serious infections on medication interruptions, quality of life, and disease flares in patients with rheumatoid arthritis. Rheumatology (Oxford). Published 19 September 2025. doi:10.1093/rheumatology/keaf503

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