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Key Background Medications data. More information is available at https://adni.loni.usc.edu/data-samples/adni-data/

Usage

data(BACKMEDS)

Format

A data frame with 13997 observations and 16 variables.

Details

  • ORIGPROT character Original study protocol , with options: ADNI1, ADNIGO, ADNI2, ADNI3, ADNI4

  • 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: 2, ..., 10894

  • VISCODE character Visit code

  • VISCODE2 character Translated visit code

  • VISDATE Registry EXAMDATE on matching VISCODE Date: YYY-MM-DD

  • KEYMED character At this visit, is participant on any of the following medication?

    • ADNIGO, ADNI2: 1=Aricept ; 2=Cognex ; 3=Exelon ; 4=Namenda ; 5=Razadyne ; 6=Anti-depressant medication ; 7=Other behavioral medication ; 0=None of the above

    • ADNI3, ADNI4: 0=None of the above ; 1=Aricept ; 2=Cognex ; 3=Exelon ; 4=Namenda ; 5=Razadyne ; 6=Anti-depressant medication ; 7=Other behavioral medication

    Decoded Value: Yes

  • ID numeric Record ID Range value: 4, ..., 187105

  • SITEID numeric Site ID Range value: 1, ..., 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