Details of Element: Quality Code, Computer Generated
Component of Pulmonary Data, Reviewed by Statistical Studies

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

Data Points (as of 09/06/98) Males Females Total
Number of Data Points 7305 1830 9135
Number of Distinct Participants 1387 661 2048
Year First Collected 1962 1978 -
Year Last Collected 1993 1993 -

Type of Variable: Absolute Measure
Encoding: Discrete
    Value Meaning
    1 Smooth continuous curves lasting at least 6 seconds
    2 Curves not smooth lasting at least 6 seconds
    3 Smooth continuous curves lasting less than 6 seconds
    4 Curves not smooth lasting less than 6 seconds
    5 Curves are not reproducible
    9 No code given
Precision: #.
Anticipated Range: 1. thru 9.
Masterfile Index: 118-02-45
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 .