DQD report contains some errors below:
- The number and percent of persons in the CDM that do not have at least one record in the OBSERVATION_PERIOD table.
According to CDM specification, each person has to have at least one observation period, therefore these persons must be deleted. But in some datasets such records filter out because of logic: event date cannot be more than max date of dataset that is why the number of these records is large.
Has anyone encountered such an error? Do you filter out these persons or save? Or anything else?
- For a CONCEPT_ID 200670 (Benign neoplasm of male genital organ), the number and percent of records associated with patients with an implausible gender (correct gender = Male).
There are records with female persons which have ‘male’ diagnosis and male persons with ‘female’ diagnosis. Is there a solution for this problem?
- For the combination of CONCEPT_ID 3000620 (Complement C3 [Mass/volume] in Serum or Plasma) and UNIT_CONCEPT_ID 8751 (milligram per liter), the number and percent of records that have a value less than 560.000.
For similar errors, why the combination of concept_id and unit_concept_id is checked? Where does the limit come from? And why DQD consider it as error and not as warning?
Thank you in advance!