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AV-45 24-48 Hour Follow-Up data. More information is available at https://adni.loni.usc.edu/data-samples/adni-data/

Usage

data(AV45FOLLOW)

Format

A data frame with 1745 observations and 16 variables.

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

  • ID numeric Range value: 8, ..., 2978

  • RID numeric Participant roster ID Range value: 2, ..., 5285

  • PTID character Participant ID

  • SITEID numeric Site ID Range value: 1, ..., 61

  • VISCODE character Visit code

  • VISCODE2 character Translated visit code

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

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

  • CONTACT character Was 24-48 hours post imaging follow-up telephone contact made?

    • ADNIGO: 1=Yes ; 0=No ; 2=N/A - no AV-45 scan conducted

    • ADNI2: 1=Yes ; 0=No ; 2=N/A - no Florbetapir F18 scan conducted

    Decoded Value: Yes

  • CALLDATE Date of telephone contact: Date: YYY-MM-DD

  • CALLTIME Time of telephone contact: hms: HH-MM-SS

  • CONTACTED character Person who was contacted: 1=Participant ; 2=Study Partner Decoded Value: Yes

  • CALLAE character Were any Adverse Events reported? 1=Yes ; 0=No Decoded Value: Yes

  • update_stamp POSIXct: YYY-MM-DD