Details of Element: Birth Date(Year)
Component of Stress Data


Unique Name: birda1
Contained in the Common BLSA Data Set ? No

Data Points (as of 09/06/98) Males Females Total
Number of Data Points 2113 1083 3196
Number of Distinct Participants 865 534 1399
Year First Collected 1963 1978 -
Year Last Collected 1991 1991 -

Type of Variable: Absolute Measure
Encoding: Continuous; Converted to 4 digit year
Precision: ##.
Anticipated Range: 00. thru 99.
Masterfile Index: 143-01-15
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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