Details of Element: Residual Volume--Helium (L)
Component of Pulmonary Function


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

Data Points (as of 09/06/98) Males Females Total
Number of Data Points 326 0 326
Number of Distinct Participants 322 0 322
Year First Collected 1958 n/a -
Year Last Collected 1964 n/a -

Type of Variable: Absolute Measure
Encoding: Continuous
Units of Measure: (undeclared)
Precision: #.##
Anticipated Range: 0.00 thru 9.99
Masterfile Index: 110-01-57
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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