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. 2024 Apr;26(4):917-923.
doi: 10.1007/s12094-023-03321-3. Epub 2023 Sep 28.

Myelodysplastic syndromes mortality in Spain: a comprehensive age-period-cohort and joinpoint analysis

Reyes María Martín-Rojas  1 , Lucía Cayuela  2 , Francisco Martín-Domínguez  3 , Aurelio Cayuela  4
Affiliations

Myelodysplastic syndromes mortality in Spain: a comprehensive age-period-cohort and joinpoint analysis

Reyes María Martín-Rojas et al. Clin Transl Oncol. 2024 Apr.

Abstract

Objective: The present study aims to assess the mortality trends in myelodysplastic syndromes (MDS) in Spain from 1980 to 2021.

Methods: Deaths and mid-year population data were collected from the National Institute of Statistics. We estimated age-standardised mortality rates (ASMRs) per 100,000 person-years for all ages and ages 35-64. Joinpoint regression identified significant changes in mortality trends. The independent effects of age, period and birth cohort on MDS mortality were also examined.

Results: MDS-related deaths gradually increased from 36 in 1980 to 1118 in 2021, with an overall increase of 6.6% in age-standardised mortality rates (ASMRs) for both men and women. Joinpoint analysis identified four periods for both men and women: 1980-1987 (stable rates), 1987-1990 (sharp increase), 1990-1999 (slower increase) and 1999-2021 (stable rates). ASMRs (35-64 years) increased by 2.5% over the study period, with a turning point identified in 1996 when rates decreased. Mortality from MDS increases with age and is higher in men. The cohort's relative risk increased until the mid-1950s and then stabilised, whilst the period relative risk increased between 1982 and 1996 and then stabilised.

Conclusion: The results of this study indicate a progressive increase in MDS-related deaths in Spain between 1980 and 2021. Notably, this increase was more pronounced in men than in women. Analysis of birth cohort trends revealed shifts in MDS risk, characterised by an increase until the mid-twentieth century, followed by a stabilisation. Using joinpoint analysis, four distinct periods were identified, shedding light on the changing patterns of mortality over time. These findings help to shape future research directions and inform public health strategies. They also provide optimism for advances in MDS treatment and potential reductions in mortality.

Keywords: Age-period-cohort analysis; Joinpoint analysis; Mortality trends; Myelodysplastic syndromes; Spain.

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