A retrospective cohort study of patients diagnosed of thyroid cancer in the southwest Madrid area. Predictive factors in differentiated thyroid cancer

Age-standardized incidence, mortality rate, and trend changes of thyroid cancer in the Balearic Islands during the 2000–2020 period: a population-based study

“…Furthermore, the 2014 World Cancer Report stated that, among the new cases of thyroid carcinoma, >50% are MPTC [22], being the rapid development of imaging diagnosis technology one of the main reasons behind the overdiagnosis of TC. In agreement with this, all epidemiological studies in Spain, including ours, have pointed to a significant increase in the incidence of MPTC [18], and overall prevalence of MPTC in published series in Spain is estimated around 15-20% [23].…”

“…We evaluated long term survival, causes of death and mortality rates and trends in this cohort of patients with TC. Overall survival at five years (97.62%) and disease-specific mean mortality rate (0.20 per 100,000 person years) were absolutely in line with reported rates around the world, which are far less influenced by geographical heterogenicity in incidence [12,15,23,[25][26]. Two previous publications have evaluated disease-specific mortality in TC in Spain; from 1975 to 2001, crude mortality rate in Spain was reduced to 0.5 (x10 5 ) according to the National Centre for Epidemiological Studies [27], and more recently, another study in the Southern province of Granada showed a stable crude mortality rate of 0.4 for men and 0.5 for women (x10 5 ) without trend changes, during the 1985-2013 period [28].…”