The objective of this study was to evaluate whether the amount of cases of thyroid cancer post Fukushima disaster reported were overestimated. The study focused on noting and analyzing if the high reported prevalence of thyroid cancer cases in the areas surrounding the disaster were over diagnosed. Factors such as O/E ratio, utilizing the life table method, as well as national estimates were used in order to determine whether the reported amount of thyroid cancer cases of those aged 20 years in the area were accurate or too exaggerated and ultimately over diagnosed.
The object of this study is to observe whether or not there was an overdiagnosis of thyroid cancer after the Fukushima nuclear disaster in 2011. They did this by comparing the observed prevalance of thyroid cancer in the Thyroid Screening Programme with the estimated historical controls on the assumption that there was neither nuclear accident nor screening intervention.
The object of this study is to determine whether or not there was overdiagnosis of thyroid cancer in Fukushima dollowing the nuclear disaster in 2011.