Name Steward Organization Suggested Domain Suggested Domain Description Cde Group Classification
CHO_Assay_Note MIDUS Biomarkers, genetics, and genomics
Biomarkers, genetics, and genomics relevant to AD/ADRD
Studies in LINKAGE
  • MIDUS
    • Study name- Midlife in the United States (MIDUS 3): Retention Early Warning Project, 2018-2019 (ICPSR 38291)/#/0003_MIDUS_Retention_Early_Warning_Data
      • Variable name- C7BCHOAN

# Datatype Datatype value list datatype
Value List Number

# Permissible value Value meaning name
0 NO NOTES
1 BLANK PUNCH
2 MULTIPLE DROPS PER PRINTED CIRCLE
3 SMEARED DROPS/INCONSISTENT ABSORPTION
4 SMALL SPOT, <80%
5 NON-CIRCULAR DBS
6 OVERLAPPING BLOOD SPOTS
7 CONTAMINATED SAMPLE
8 HALO
9 PHYSICAL DAMAGE TO SAMPLE
10 ABNORMAL COLOR
11 DOES NOT MEET QUALITY CRITERIA
12 DROP OUTSIDE PRINTED CIRCLE
13 NO DBS REMAINS
14 ISSUE DURING ASSAY
15 EARLY A1C PEAK, NO RESULT
16 INTERFERING PEAK, NO RESULT
18 NO A1C PEAK, NO RESULT
19 INSUFFICIENT IL6 SAMPLE
20 %HBA1C ADJUSTED DUE TO FALSE LOW LEVEL OF HBS
21 BAD CHROMATOGRAM: INTEGRATION >1.8MIN
22 PUNCH TAKEN FROM SECONDARY CARD
23 BAD CHROMATOGRAM: AREA <1.5M, NO RESULT
24 BAD CHROMATOGRAM: AREA >4.5M, NO RESULT
25 SPOT NOT SATURATED
26 BAD CHROMATOGRAM: ABERRANT A1C INTEGRATION, NO RESULT
27 RAMPING BASELINE
28 HPLC INSTRUMENT ERROR, NO RESULT PENDING REASSAY
29 BELOW LOWER LIMIT OF DETECTION (LLOD); NOT SIGNIFICANTLY DIFFERENT FROM ZERO
30 BELOW LIMIT OF QUANTIFICATION (LOQ); CV >20%
31 ABOVE ANALYTICAL MEASUREMENT RANGE (AMR)
37 PUNCH DID NOT ELUTE
39 NON-A HEMOGLOBIN VARIANT >60%; NO RESULT
40 NO DESICCANT IN BAG
41 BLANK CARD RECEIVED
42 BLOOD FROM FILTER PAPER TOUCHED INSIDE BACK COVER
-2 RESPONDENT DOES NOT HAVE BLOOD ASSAY DATA

# Identifier Origin Version
Midlife in the United States (MIDUS 3): Retention Early Warning Project, 2018-2019 (ICPSR 38291)/#/0003_MIDUS_Retention_Early_Warning_Data_C7BCHOAN MIDUS-study_name+variable_name ICPSR 38291