Present: Arezo, lege, 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.