http://nuclearhistory.wordpress.com/2013/09/05/female-thyroid-cancer-ages-15-24-1975-2008-japan-all-data-available-official-estimates/
Female Thyroid Cancer, Ages 15 -24, 1975 2008, Japan. all data available, Official Estimates
Source:
http://ganjoho.jp/pro/statistics/en/table_download.html National estimates of cancer incidence based on cancer registries in Japan (1975-2008)
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I conclude the information provided by Dr Yamashita regarding the latency of childhood and young adult thyroid cancer is 1. Incorrect 2. Differs from Dr Yamashitas stated conclusions published in 2007.
Further, the impact of Chernobyl in regard to Thyroid cancer in Japan from 1986 on, peaking in 1992, is fairly clear. I submit that the impact of the Fukushima Diiachi Nuclear Disaster on disease rates in Japan will be massively larger than the effect of Chernobyl fallout.
This will also be true for countries other than Japan.
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No accessible data can be found which describes disease rates in Japan from the late 2000s to the present time.
The primary data collected and released describing disease within areas in Japan since 2011 was collected under the supervision of Dr Yamashita until the very recent past.
It is a tragedy of modern medical record keeping that the best Japan can do is provide official estimates of the cancer for the period. It is extremely tragic that the people of Japan and the people of the world cannot see the trend of disease prior to the establishment of nuclear industry in Japan. However, for female thyroid cancer, the start point in 1975 was low. The end point of the date range provided, 2008, was higher, in all cases except for some very young age ranges. Of the childhood data provided, the most responsive appears to be the 15-19 years age range.
It is important for ordinary people in Japan and elsewhere to know that the data, as such exists, may be downloaded and studied form the link given above, ie download the data from
http://ganjoho.jp/pro/statistics/en/table_download.html National estimates of cancer incidence based on cancer registries in Japan (1975-2008)