Details of Element: Prev m
Component of Life History


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

Data Points (as of 09/06/98) Males Females Total
Number of Data Points 798 0 798
Number of Distinct Participants 798 0 798
Year First Collected 1967 n/a -
Year Last Collected 1983 n/a -

Type of Variable: Absolute Measure
Encoding: Continuous
Units of Measure: (undeclared)
Precision: #.
Anticipated Range: 0. thru 9.
Masterfile Index: 551-02-15
Related Data Elements: none
Specific to this Data Element:
    Inclusion/Exclusion Rules: n/a
    Descriptive History: (none)
Details for this Data Type


JM - Disclaimer

Revised 09/18/98 -- Send comments to our Web Master .