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ARM

Source: R/data.R
ARM.Rd

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

Usage

data(ARM)

Format

A data frame with 4705 observations and 15 variables.

Source

https://adni.loni.usc.edu/data-samples/adni-data/

Details

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

  • 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: 1, ..., 5296

  • PTNO numeric 4 digit Participant Number Range value: 1, ..., 1435

  • TYPE character ID Type S=Study Participant ; P=Phantom ; V=Volunteer Decoded Value: Yes

  • ARM character Diagnosis/Scan Category Assignment

    • ADNI1: 1=NL - 1.5T only ; 2=MCI - 1.5T only ; 3=AD - 1.5T only ; 4=NL - PET+1.5T ; 5=MCI - PET+1.5T ; 6=AD - PET+1.5T ; 7=NL - 3T+1.5T ; 8=MCI - 3T+1.5T ; 9=AD - 3T+1.5T ;

    • ADNIGO: 1=NL - 1.5T only ; 2=MCI - 1.5T only ; 3=AD - 1.5T only ; 4=NL - PET+1.5T ; 5=MCI - PET+1.5T ; 6=AD - PET+1.5T ; 7=NL - 3T+1.5T ; 8=MCI - 3T+1.5T ; 9=AD - 3T+1.5T ; 10=EMCI

    • ADNI2: 1=NL - (ADNI1 1.5T only) ; 2=LMCI - (ADNI1 1.5T only) ; 3=AD - (ADNI1 1.5T only) ; 4=NL - (ADNI1 PET+1.5T) ; 5=LMCI - (ADNI1 PET+1.5T) ; 6=AD - (ADNI1 PET+1.5T) ; 7=NL - (ADNI1 3T+1.5T) ; 8=LMCI - (ADNI1 3T+1.5T) ; 9=AD - (ADNI1 3T+1.5T) ; 10=EMCI ; 11=SMC - (Significant Memory Concern)

    Decoded Value: Yes

  • ENROLLED character Enrollment Status

    • ADNI1: null=pending enrollment ; 1=randomized - assigned a scan category ; -1=screen failed ; -2=screen failed after randomization

    • ADNIGO: null=pending enrollment ; 1=randomized - assigned a scan category ; -1=screen failed ; -2=screen failed after randomization ; 2=Enrolled

    • ADNI2: null=pending enrollment ; 1=randomized - assigned a scan category ; -1=screen failed ; -2=phantom screen ; 2=Approved for enrollment in ADNIGO ; 3=Approved for enrollment in ADNI2

    Decoded Value: Yes

  • RANDDATE Randomization Date Date: YYY-MM-DD

  • MAPPDATE Monitor Approval Date Date: YYY-MM-DD

  • ID numeric Range value: 2, ..., 1715

  • SITEID numeric Site ID Range value: 1, ..., 127

  • USERDATE Date record created Date: YYY-MM-DD

  • USERDATE2 Date record last updated Date: YYY-MM-DD

  • update_stamp POSIXct: YYY-MM-DD

Author

adni-data@googlegroups.com