Hi OHDSI-Atlas peeps,

I had a quick question on generating repetitive cohorts in Atlas!

I wanted to generate specific cohorts for calculating monthly age-standardized incidence rates for 5 years.

In order to do so, I figured out I first have to generate the number of the disease cases as well as the total number of population per age group per month per year. In this case, I will have to generate 17 age groups x 2 databses x 2 cohorts (case as the numerators and total population as the denominators) x 12 months x 5 years x 2 disease cases = 8,160 cohorts, before applying the age-standardization.

I was wondering if there is an easier & economically efficient way of handling this situation. For instance, would there be a way to automatically generate the same type of cohorts, but just with different age group/month/year? I am still learning Atals, so wanted to make sure if I am doing it in the most optimal way possible.

Thank you in advance for your expertise!

Best regards,

Mariana