Question Posted 11/02/17:
Could you please expand on one of the FAQs:
"How are patients who transitioned from normal to MCI or MCI to AD identified?"

I am looking at the tables from Diagnosis section:

It's not clear to me which columns from these tables represent the MCI subjects who later convert to AD or not.

Could you please help.

Response posted 11/02/17 by Danielle:
All diagnostic information is included in DXSUM_PDXCONV_ADNIALL.csv. For ADNI-1, diagnostic change information is contained in several variables (DXCURREN, DXCONV, DXCONTYP). For ADNI-GO/2, all diagnosis information is included in the variable DXCHANGE. Refer to the data dictionary for coding information.