An international/multicentre report on patients with cystic fibrosis (CF) over the age of 40 years

An international/multicentre report on patients with cystic fibrosis (CF) over the age of 40 years

Hodson ME; Simmonds NJ; Warwick WJ; Tullis E; Castellani C; Assael B; Dodge JA; Corey M; International Study Of Aging In Cystic Fibrosis

Journal Of Cystic Fibrosis

2008

Female; Humans; Male; Survival Rate; Cohort Studies; Adult; Canada; Aged; Middle Aged; Minnesota; Longevity; Italy; Adolescent Transitions; retrospective studies; Age Distribution; Life Expectancy; Sex Distribution; Cystic Fibrosis/complications/epidemiology/physiopathology; London

BACKGROUND: The lifespan of patients with cystic fibrosis (CF) is increasing significantly. The objective of this international pilot study was to study the characteristics of these long-term survivors. METHODS: Four centres with large CF clinics from London (UK), Minneapolis (USA), Toronto (Canada) and Verona (Italy) identified 366 patients who had survived 40 years and longer. RESULTS: At all centres males survived longer than females. There were more pancreatic sufficient patients in Verona (60%) and Toronto (40%) than in London (16%) and Minneapolis (21%). The percentage of DeltaF508 homozygous patients varied between 47% in London and 45% in Minneapolis to only 26% in Toronto and 9% in Verona. Average FEV(1) and BMI values of the surviving population appeared to stabilise after 40 years of age. FEV(1) was on average 12% higher in patients who were pancreatic sufficient (p > 0.0001). There was no difference in survival between the centres. The overall median survival after the age of 40 was 13 years. The estimated annual death rate was approximately 3.4% from the age of 40-60 years. CONCLUSIONS: Significant numbers of patients are now surviving to 40 years or more, and it is hoped that an in-depth study of these patients may identify the factors contributing to longer survival.

2008

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