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ADAS-Cognitive Behavior

Source: R/data.R
ADAS.Rd

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

Usage

data(ADAS)

Format

A data frame with 12616 observations and 17 variables.

Source

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

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, ..., 10819

  • VISCODE character Visit code

  • VISCODE2 character Translated visit code

  • VISDATE Assessment EXAMDATE when present; otherwise Registry EXAMDATE Date: YYY-MM-DD

  • TOTSCORE numeric Total Score (ADAS 11)

    • ADNI1, ADNIGO, ADNI2

    • ADNI3: 0..70

  • TOTAL13 numeric Total Score (ADAS 13)

    • ADNI1, ADNIGO, ADNI2

    • ADNI3: 0..85

  • ID numeric Record ID Range value: 4, ..., 16500223

  • 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: list1

  • LANGUAGE_CODE character Language Code e=English ; s=Spanish 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

Author

adni-data@googlegroups.com