Bimodality in cancer survival improvements

| Comments (1) | Biology
This article in Science reports on the lack of improvement in cancer treatments for Adolescents and Young Adults (AYAs). Here's the depressing figure from the article, showing the situation from 1975 to 1999:

It's not really clear what the issue is. The dominant theory seems to be that pediatric cancers and adult cancers are fundamentally different and that AYA tumors mix them and so adult treatment, at least, doesn't work. It's unclear if pediatric treatment will work better, but the specialists seem skeptical.

Also, note the negative progress in the 30-35 cohort. I wonder if that's real or just noise.

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I wonder if some of that valley is due to diagnosing cancers in people who get AIDS in their late teens or early 20s; it's not clear what were called cancers in the range of years.

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