RT Journal Article SR Electronic T1 Mortality risk factors associated with familial Mediterranean fever among a cohort of 1.25 million adolescents JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP 704 OP 709 DO 10.1136/annrheumdis-2012-202932 VO 73 IS 4 A1 Gilad Twig A1 Avi Livneh A1 Asaf Vivante A1 Arnon Afek A1 Ari Shamiss A1 Estela Derazne A1 Dorit Tzur A1 Ilan Ben-Zvi A1 Amir Tirosh A1 Micha Barchana A1 Tamy Shohat A1 Eliezer Golan A1 Howard Amital YR 2014 UL http://ard.bmj.com/content/73/4/704.abstract AB Objective There are limited data on long-term comorbidities and mortality among patients with familial Mediterranean fever (FMF). Our objective was to evaluate comorbidities and death rates among individuals with FMF. Methods We studied a nationwide, population-based, retrospective cohort of 1225 individuals with FMF (59% men) in a database of 1 244 350 adolescents (16–20 years of age) medically evaluated for military service between 1973 and 1997. This cohort was linked with the national mortality, cancer and end-stage renal disease (ESRD) registries in Israel. Study outcomes were all-cause mortality, occurrence of ESRD and malignancy by the age of 50 years. Results During 30 years of follow-up, death rates were 8.73/104 versus 4.32/104 person-years in the FMF and control groups, respectively (p=0.002). In a multivariable analysis adjusted for age, birth year, socio-economic status, education, ethnicity and body mass index, FMF was associated with increased mortality in men (HR=1.705 (95% CI 1.059 to 2.745), p=0.028) and women (HR=2.48 (1.032 to 5.992), p=0.042). Renal amyloidosis accounted for 35% and 60% of deaths in men and women, respectively. FMF was not associated with an increased incidence of cancer. Conclusions FMF is associated with increased all-cause mortality that is likely attributed to reduced colchicine compliance or responsiveness. Individuals with FMF do not have an increased incidence of cancer. These results support the awareness among medical community to decrease the higher than average mortality rate among participants with FMF.