Autoinflammatory & rare systemic diseases

Prevalence, incidence and geographic distribution of familial Mediterranean fever in Turkey: a national cohort study

Clin Exp RheumatolPublished Retrospective cohort study

Authors' conclusion

FMF is beyond the definition of a rare disease and a significant health issue in Turkey, with a non-uniform distribution influenced by both genetic and historical factors.

Study context

Population
Nationwide population of Turkey in e-Pulse; Familial Mediterranean Fever (FMF) identified by ≥2 ICD-10 codes ≥30 days apart; aged ≥50 and gout-related codes excluded160,897 FMF patients
Participants
82,003,882 participants
Outcome
Prevalence and incidence of FMF
Follow-up
2018
Methodological detailsnationwide, electronic medical records database (e-Pulse)
  • Nationwide
  • Electronic medical records database (e-Pulse)

Main finding

As reported in the abstract

Prevalence per 10,000 individuals

139

Incidence per 10,000

2.78

Observational data: associations, not effects.

Further findings

Age distribution

Highest number of records among individuals aged 15-19

Geographic distribution

Highest prevalence in Ardahan, Bayburt and Sivas (North-Eastern Turkey)

Children <18 with FMF with at least one parent diagnosed with FMF

Proportion of children <18 with FMF with ≥1 parent with FMF
11.7%

Original publication

Prevalence, incidence and geographic distribution of familial Mediterranean fever in Turkey: a national cohort study. Clin Exp Rheumatol. Published 6 December 2024. doi:10.55563/clinexprheumatol/pzbg88

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