Prevalence of Chronic Kidney Disease by Stage based on Estimated Glomerular Filtration Rate and Relevant Laboratory Tests at Study Visit (Patients Who Could be Assessed for Chronic Kidney Disease).

Abbreviations: ACR  =  albumin/creatinine ratio; CKD  =  chronic kidney disease; eGFR  =  estimated glomerular filtration rate; N  =  number of patients; N/A  =  not applicable.
True Positive: Patients who reported as diagnosed with CKD (on CKD History eCRF page) and with actual presence of CKD based on laboratory results from the Study Visit;
True Negative: Patients who reported as not diagnosed with CKD (on CKD History eCRF page) and without actual presence of CKD based on laboratory results from the Study Visit;
False Positive: Patients who reported as diagnosed with CKD (on CKD History eCRF page) and without actual presence of CKD based on laboratory results from the Study Visit;
False Negative: Patients who reported as not diagnosed with CKD (on CKD History eCRF page) and with actual presence of CKD based on laboratory results from the Study Visit.
a: A total of 9339 patients enrolled in the study, but only 9307 patients had the laboratory test results and medical history records to assess as True Positive, True Negative, False Positive, or False Negative for CKD.
b: If eGFR, urine dipstick, and urine ACR data were all available:
•No CKD: Normal eGFR (≥60 mL/min/1.73 m2) with neither positive protein in urine nor urine ACR ≥30 mg/g.
•Stage 1: Normal eGFR (≥90 mL/min/1.73 m2) with either positive protein in urine or urine ACR ≥30 mg/g.
•Stage 2: eGFR 60 to 89 mL/min/1.73 m2 with either positive protein in urine or urine ACR ≥30 mg/g.
•Stage 3: eGFR  = 30 to 59 mL/min/1.73 m2;
•Stage 4: eGFR  = 15to 29 mL/min/1.73 m2; and
•Stage 5: eGFR <15 mL/min/1.73 m2 (Stages 3, 4, 5 were based on eGFR value alone).
If eGFR, urine dipstick, and urine ACR data were not all available: classify with the worst CKD stage based on the available data from eGFR, urine dipstick, and/or urine ACR.
Prevalence of Chronic Kidney Disease by Stage based on Estimated Glomerular Filtration Rate and Relevant Laboratory Tests at Study Visit (Patients Who Could be Assessed for Chronic Kidney Disease).