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Present: Arezo, medisiner, gro, endre, ingrid

Endre present:

M 43 Aids

M 44 CHDo

K 49 CHD

patient data is often structured like this.

usually more is involved.

If you have a table like this you can tell that the male, 43 has aids -> not really anonymous.

you can deduce that the male 43 has aids because he is the only male 43 in the data set.

These data are not anonymous, just deidentified. Group data are more truly anonymous.

This is more anonymous since the age is grouped:

M 40-45 aids

M 40-45 CHD

K 46-50 CHD

Finding the optimal way of deidentify data is hard. There are so many different combinations that it will be hard to do in a limited amount of time. You have to find the balance between keeping information and making the data anonymous.There is no obvious way to do clustering of deseases. No obvious way of how to group the data.

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