[burger]

I should hurry up and get this thing before my 45th birthday in November!

BC

All of these studies that split the data into 5 age classes should be treating age as a 5th-degree polynomial instead.  Just as many degrees of freedom, and I'll bet the predicted mortality rates, etc. would fit the data better.

(Prediction: no one will do that)

[burger]

I should hurry up and get this thing before my 45th birthday in November!

BC

All of these studies that split the data into 5 age classes should be treating age as a 5th-degree polynomial instead.  Just as many degrees of freedom, and I'll bet the predicted mortality rates, etc. would fit the data better.

(Prediction: no one will do that)