Clareo Health | An Observational Study to Learn More How Chronic Kidney Disease Gradually Changes Over Time in Adults Using Electronic Healthcare Records (CKD Natural History Study)
An Observational Study to Learn More How Chronic Kidney Disease Gradually Changes Over Time in Adults Using Electronic Healthcare Records (CKD Natural History Study)
Saves the questions and what to expect into your notes, next to the visit they belong to.
Keep this study
Lead
Bayer
Age
18–any
Sex
ALL
Healthy volunteers
Not accepted
You may be eligible if
\>18 years of age
At least 12 months of look back period
For Diagnosed cohorts - ICD codes for CKD diagnosis
For Lab based cohorts - Two abnormal lab measures of eGFR or uACR/uPCR using LOINC codes.
* Patients were included if they had the same type of test (Modification of Diet in Renal Disease (MDRD) only, CKD Epidemiology Collaboration (CKD EPI) only, Unspecified only) to estimate eGFR throughout their history because the estimation varies depending on the test used which would affect the CKD staging.
You may not be if
Birth year absent.
Patients without any demographic information were excluded
Patients with history of ESKD
For Lab based cohorts:-
* Patients were excluded if they had an incorrect test for eGFR identified by LOINC code for e.g. formula for wrong gender (Females with male MDRD formula) or wrong ethnicity (Blacks with white MDRD formula)
* Patients with mixed types of approaches to calculate eGFR (e.g. MDRD, EPI etc.) in their history were excluded. (\<20 patients)
* We exclude lab results if the loinc code specific for ethnicity and gender does not match the patient demographics.
