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UPENN CSF Biomarkers Elecsys ADNI1,GO,2,3

Source: R/data.R
UPENNBIOMK_ROCHE_ELECSYS.Rd

UPENN CSF Biomarkers Elecsys [ADNI1,GO,2,3] data. More information is available at https://adni.loni.usc.edu/data-samples/adni-data/

Usage

data(UPENNBIOMK_ROCHE_ELECSYS)

Format

A data frame with 3174 observations and 14 variables.

Source

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

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 Participant roster ID Range value: 3, ..., 7073

  • VISCODE2 character Months from baseline rounded to nearest 6 months

  • EXAMDATE Date sample collected Date: YYY-MM-DD

  • BATCH character Sample batch UPENNBIOMK9 = ADNI1/GO/2 batch ; UPENNBIOMK11 = ADNI3 1st batch ; UPENNBIOMK12 = ADNI3 2nd batch ; UPENNBIOMK13 = ADNI3 3rd & 4th batches Decoded Value: Yes

  • RUNDATE Date of experiment Date: YYY-MM-DD

  • ABETA40 numeric ABETA40 result Range value: 841, ..., 37480

  • ABETA42 numeric ABETA42 result Range value: 203, ..., 4779

  • TAU numeric TAU result Range value: 80.08, ..., 1018

  • PTAU numeric PTAU result Range value: 8, ..., 108.5

  • COMMENT character Supplementary notes for missing values and outlier , with options: Abeta42>1700, Tau>1300, PTau>120, Tau<80, PTau<8, Abeta42<200, PTau<8, Ptau<8, PTau>120, Sample Hemolyzed, Abeta42>1700, recalculation failed

  • update_stamp POSIXct: YYY-MM-DD

Author

adni-data@googlegroups.com