Details of Element: *chd Classification
Component of Ekg-Cad Classification

Unique Name: chdcl
Contained in the Common BLSA Data Set ? Yes

Data Points (as of 09/06/98) Males Females Total
Number of Data Points 11935 3711 15646
Number of Distinct Participants 1564 909 2473
Year First Collected 1958 1978 -
Year Last Collected 1998 1998 -

Type of Variable: Absolute Measure
Encoding: Discrete
    Value Meaning
    0 Clean
    1 Indefinite
    2 Positive
Precision: #.
Anticipated Range: 0. thru 2.
Masterfile Index: 007-01-59
Related Data Elements: none
Specific to this Data Element:
    Inclusion/Exclusion Rules: n/a
    Descriptive History: (none)
Details for this Data Type
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Revised 09/18/98 -- Send comments to our Web Master .