Pre-Amyloid PET Disclosure data. More information is available at https://adni.loni.usc.edu/data-samples/adni-data/
Usage
data(PREAMYDISC)Details
ORIGPROT character Original study protocol , with options: ADNI4, ADNI2, ADNIGO, ADNI3, ADNI1
COLPROT factor Study protocol of data collection , with levels: ADNI1, ADNIGO, ADNI2, ADNI3, ADNI4
PTID character Participant ID
RID numeric Participant roster ID Range value: 21, ..., 10819
VISCODE character Visit code , with options: 4_bl, 4_init, 4_m12
VISCODE2 character Translated visit code
VISDATE Registry EXAMDATE on matching VISCODE Date: YYY-MM-DD
PETLEARN character Have you ever learned the result of a PET (positron emission tomography) scan that measures brain amyloid? This may also have been referred to as an "amyloid PET scan" or a "brain amyloid scan." 0=No ; 1=Yes ; 99=I don't know Decoded Value: Yes
PETRESULT character If yes, what was your amyloid PET scan result? 0=Not Elevated ; 1=Elevated ; 99=I don't know Decoded Value: Yes
RISKAD character For CN/MCI: If yes, did your amyloid PET scan result indicate that you have an increased risk for developing Alzheimer's disease dementia? 0=No, my amyloid PET scan result did not indicate an increased risk for Alzheimer's disease dementia. ; 1=Yes, my amyloid PET scan result indicated an increased risk for Alzheimer's disease dementia. ; 2=Not applicable (For DEM) ; 99=I don't know Decoded Value: Yes
CONSAD character For dementia: If yes, was your amyloid PET scan result consistent with Alzheimer's disease dementia? 0=No, my amyloid PET scan result was not consistent with Alzheimer's disease ; 1=Yes, my amyloid PET scan result was consistent with Alzheimer's disease ; 2=Not applicable (For CN/MCI) ; 99=I don't know Decoded Value: Yes
DESCBHC character Which of the terms best describes what you've been told about your brain health and cognition? 1="I am cognitively unimpaired" ; 2="I have mild cognitive impairment" ; 3="I have dementia" ; 4=Not applicable (For CN/MCI) ; 99=Don't remember/ Don't know Decoded Value: Yes
RESULT character What do you think the result of your amyloid PET scan will be? 0=Not Elevated ; 1=Elevated ; 99=I don't know Decoded Value: Yes
CONFLVL numeric On a scale of 0-100%, how confident are you that's what your result will be? Range value: 0, ..., 100
DEVDEMAD numeric On a scale of 0-100%, where 0% is no chance and 100% is definite, what do you think is your chance of developing dementia caused by Alzheimer's disease in your lifetime? Range value: 0, ..., 100
DEMADLVL character Would you say that your risk of developing dementia caused by Alzheimer's disease is very low (1), low (2), average (3), high (4), or very high (5)? 1=very low (1) ; 2=low (2) ; 3=average (3) ; 4=high (4) ; 5=very high (5) ; 6=Not applicable (For DEM) Decoded Value: Yes
DEMADAGE character What do you think your chances are of developing dementia caused by Alzheimer's disease compared to others your age? Much lower (1), A little lower (2), The same (3), A little higher (4), Much higher (5) 1=much lower (1) ; 2=a little lower (2) ; 3=the same (3) ; 4=a little higher (4) ; 5=much higher (5) ; 6=Not applicable (For DEM) Decoded Value: Yes
ID numeric Record ID Range value: 1285, ..., 106749
SITEID numeric Site ID Range value: 2, ..., 941
USERDATE User Create Date Date: YYY-MM-DD
USERDATE2 User Last Modify Date Date: YYY-MM-DD
DD_CRF_VERSION_LABEL character CRF Version Label , with options: v1
LANGUAGE_CODE character Language Code e=English Decoded Value: Yes
HAS_QC_ERROR character Has Quality Check Error 0=Does not have QC error or QC error has been approved ; 1=Has QC error Decoded Value: Yes
update_stamp POSIXct: YYY-MM-DD