This is my current state of almost the end of 2nd week. 
We were discussed in our last meeting to create the New Patient Registrations reports using cohorts. I spent many days trying to create this report through the reporting module UI. It seems that date_created of a patient is not possible to retrieve through the existing data definitions.
When I look at the rest of the reports, they are moreover to metadata than patient specific data. For all those reports, the default cohort which is All Patients is good enough.
Last week objective:
- Implement the New Patient Registrations report (Not able to done due to : how to get date_created as a data definition [solved])
For the moment, I have these reports which were implemented through SQL definitions inside the referenceApplication module. Here is the Pull Request I made with the suggested modifications.
I will be so happy to see, if there is another possible way to get date_created attribute in the patient table as a data definition.
Regards, Jude Niroshan