Gout flares, serum urate and seasonality: a descriptive cohort study
By
Samuel Finnikin
Christian D. Mallen
Edward Roddy
January 6, 2026
Clinical Scorecard: Seasonal Variations in Gout Attacks and Serum Urate Levels: A Cohort Analysis
At a Glance
Category Detail
Condition Gout, an inflammatory arthritis caused by monosodium urate crystal deposition Key Mechanisms MSU crystal formation influenced by serum urate levels, temperature, pH, and physical shock Target Population Adults aged 20 years and over with incident gout in the UK Care Setting Primary care, with management primarily outside specialist settings
Key Highlights
Gout flares show seasonal variation, peaking in spring (USA, Korea, Italy) or summer (UK). Serum urate levels correlate with gout flare risk but may be temporarily reduced during flares. Serum urate testing is suboptimal; around 40% of gout patients lack SU measurements. Guideline-Based Recommendations
Diagnosis
Measure serum urate to aid gout diagnosis, ideally at least 14 days after a flare to avoid transiently low SU levels. Use clinical coding combined with SU levels and prescribing data for accurate gout diagnosis. Management
Use urate-lowering therapies (allopurinol, febuxostat) to reduce serum urate and flare risk. Avoid initiating ULT during acute flares; exclude patients on ULT when studying natural flare patterns. Monitoring & Follow-up
Monitor serum urate levels when initiating or managing ULT. Recognize that SU levels may fluctuate seasonally and with flares. Risks
Higher serum urate levels increase risk of gout flares. Lower temperatures and dehydration may promote MSU crystallization and flares. Patient & Prescribing Data
UK adults with incident gout not on urate-lowering therapy
ULT initiation censors flare observation; colchicine or NSAIDs prescribed for flares but may be used prophylactically with ULT initiation.
Clinical Best Practices
Exclude patients on ULT when studying natural gout flare patterns to avoid confounding. Allow a 30-day grace period post-flare to distinguish separate flare events. Use multiple data sources (prescriptions, healthcare visits, coded diagnoses) to identify gout flares. Consider demographic covariates (age, sex, ethnicity) in gout flare risk assessment. Exclude biologically implausible serum urate values and zero entries from analysis. References
