I would like to do an analysis of 28 blood parameters in 3 stages of the disease

all parameters have specific numerical values

I have reference value forch each parameter

some of them increased, some decreased, some didnt change

change of the value of each parameter has its own name - if the number of red blood cells decreased -we call it - anemia

I would like to investigate how parameters changed in the three stages of the disease and whether there is chance to notice some connection beetween them - eg. increasing the parameter "3" is decreasing parameter "7"

Can you suggest me how to do it?

best regards