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

Usage

data(MODHACH)

Format

A data frame with 3462 observations and 22 variables.

Details

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

  • COLPROT factor Study protocol of data collection , with levels: ADNI1, ADNIGO, ADNI2, ADNI3, ADNI4

  • PTID character Participant ID

  • RID numeric Range value: 2, ..., 7126

  • VISCODE character , with options: sc, f, v01

  • VISCODE2 character Translated visit code , with options: sc, f

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

  • HMONSET character 1. Abrupt Onset of Dementia

    • ADNI1, ADNIGO, ADNI2: 2=Present - 2 points ; 0=Absent

    • ADNI3: 0=Absent ; 2=Present - 2 points

    Decoded Value: Yes

  • HMSTEPWS character 2. Stepwise Deterioration of Dementia

    • ADNI1, ADNIGO, ADNI2: 1=Present - 1 point ; 0=Absent

    • ADNI3: 0=Absent ; 1=Present - 1 point

    Decoded Value: Yes

  • HMSOMATC character 3. Somatic Complaints

    • ADNI1, ADNIGO, ADNI2: 1=Present - 1 point ; 0=Absent

    • ADNI3: 0=Absent ; 1=Present - 1 point

    Decoded Value: Yes

  • HMEMOTIO character 4. Emotional Incontinence

    • ADNI1, ADNIGO, ADNI2: 1=Present - 1 point ; 0=Absent

    • ADNI3: 0=Absent ; 1=Present - 1 point

    Decoded Value: Yes

  • HMHYPERT character 5. History of Hypertension

    • ADNI1, ADNIGO, ADNI2: 1=Present - 1 point ; 0=Absent

    • ADNI3: 0=Absent ; 1=Present - 1 point

    Decoded Value: Yes

  • HMSTROKE character 6. History of Stroke

    • ADNI1, ADNIGO, ADNI2: 2=Present - 2 points ; 0=Absent

    • ADNI3: 0=Absent ; 2=Present - 2 points

    Decoded Value: Yes

  • HMNEURSM character 7. Focal Neurologic Symptoms

    • ADNI1, ADNIGO, ADNI2: 2=Present - 2 points ; 0=Absent

    • ADNI3: 0=Absent ; 2=Present - 2 points

    Decoded Value: Yes

  • HMNEURSG character 8. Focal Neurologic Signs

    • ADNI1, ADNIGO, ADNI2: 2=Present - 2 points ; 0=Absent

    • ADNI3: 0=Absent ; 2=Present - 2 points

    Decoded Value: Yes

  • HMSCORE numeric TOTAL SCORE

    • ADNI1, ADNIGO, ADNI2: 0..12

    • ADNI3

  • SOURCE character Information Source 1=Participant Visit ; 2=Telephone Call/Video Call Decoded Value: Yes

  • ID numeric Range value: 6, ..., 186318

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

  • USERDATE Date: YYY-MM-DD

  • USERDATE2 Date: YYY-MM-DD

  • update_stamp POSIXct: YYY-MM-DD