Hello @chris,
Thank you very much for your valuable response!
Just want to clarify: For the example that you illustrated where 7% PPD for the whole-body discomfort while 25% PPD for the local discomfort, you are essentially taking the max of these two as final results.
I understand that they are not essentially mutually exclusive, so there is certainly an overlap between the two; for example, there is a certain percentage of the population who experiences discomfort at BOTH whole-body level AND local level. If this is true, is taking the max still holds true? Also, you cannot add them up because otherwise, the resultant PPD may go over 100%.
Thank you again for your time.
S