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Data Completeness

The tables provided below yield basic descriptive statistics on the clinical cohort as reported by the National Alzheimer’s Coordinating Center (NACC) on October 1, 2013. These tables including summary statistics on followup of patients and data completeness. The total number of reported patients in these tables tends to be low relative to the current size of the cohort due to reporting lags, but they are useful for assessing the completeness of our data.

Monthly net gain/loss of patients in the clinical cohort

Patient Enrollment by Followup Status

Frequency of Patients by Most Recent Diagnosis

Number of Followup Visits by Visit Type

IV = Initial visit; Fi= ith follow-up visit