[EpiData-list] Epimanager / Calculated Date

Hello, I created two dates (date of birth of mother (datem), and date delivery (dated)). I also created a variable "age".

From "age", in the field calculation, I can calculate the age field in the

results because the variable does not appear (below results, "none" is noted). While, if I create another variable "age2, in the calculation, "age" appears in the window (and I write age = dated - datem). So in Entry, age is noted in variable "age" and not in "age2".... It is quite complicated... Why should I create two variables ???? I miss the ease of entry with a EPIDATA ENTRY 3.1 before with the formula (age2=(dated-datem)/365.25..... Thank you.

Kind regards

Bernard BRANGER, Nantes, France