In this study, the investigators will be looking at results of tests of memory and thinking and daily activities in a group of people without known chronic kidney disease (CKD) , and a group of CKD patients, and follow the participants for up to four more years, including after the participants start dialysis or receive a transplant. The investigators are doing this study to compare how often memory loss, confusion and difficulty with daily activities occur in those without and those with CKD. Additionally, the investigators are doing this study to identify risk factors for memory and thinking problems in CKD patients. The information received through the NDI will be utilized to help track our study population and help provide useful information regarding cause of death of those in our study.
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Screening Interview
Timeframe: 5 years
Classification
Timeframe: 5 years
Medical History Interview
Timeframe: 5 years
Informant Interview
Timeframe: 5 years
Structured Telephone Interview
Timeframe: 5 years
Missed Visits
Timeframe: 5 years
TICS
Timeframe: phone visit
Dialysis/Transplant baseline
Timeframe: 5 years
Follow Up MRI
Timeframe: 5 years
Dialysis MRI
Timeframe: 5 years
Lab Measures
Timeframe: 5 years
Research Biomarker labs
Timeframe: 1 year
COVID 19 survey
Timeframe: 5 years