FNIH Biomarkers Consortium Plasma Abeta Project: Shimadzu — PLASMA_ABETA_PROJECT

FNIH Biomarkers Consortium Plasma Abeta Project: Shimadzu data. More information is available at https://adni.loni.usc.edu/data-samples/adni-data/

Usage

data(PLASMA_ABETA_PROJECT_SHIMADZU)

A data frame with 130 observations and 15 variables.

ORIGPROT character Original study protocol , with options: ADNI1, ADNIGO, ADNI2
RID numeric Participant roster ID Range value: 31, ..., 5263
VISCODE character Visit code , with options: v41, v51, init, v21
VISCODE2 character Translated visit code , with options: m120, m132, m108, m72, m84, m60, m48, m24
EXAMDATE Examination Date Date: YYY-MM-DD
GUSPECID character
VID numeric Range value: 0, ..., 14
DER character , with options: PLA
DRAWTIME hms: HH-MM-SS
DATE Date of sample analysis in month/date/year format Date: YYY-MM-DD
AB1_42 numeric Normalized intensity of Abeta 1-42 in arbitrary units Range value: 0.16, ..., 0.54
AB1_40 numeric Normalized intensity of Abeta 1-40 in arbitrary units Range value: 4.891, ..., 12.725
APP_669_711 numeric Normalized intensity APP 669-711 in arbitrary units Range value: 0.118, ..., 0.48
COMPOSITE_BIOMARKER numeric Composite biomarker value in arbitrary units generated by combining normalized scores of APP669711/AB 142 and AB 140/AB 142 with a pre-determined weight of 1:1. Each biomarker contributed equally to the composite biomarker score. Range value: -1.687, ..., 2.382
update_stamp POSIXct: YYY-MM-DD