Details of Element: Length of Use
Component of Medications File (Includes Name, 1-30 & Icd-9-Cm Codes, 50-67)


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

Data Points (as of 09/06/98) Males Females Total
Number of Data Points 13442 14715 28157
Number of Distinct Participants 806 729 1535
Year First Collected 1968 1990 -
Year Last Collected 1998 1998 -

Type of Variable: Absolute Measure
Encoding: Discrete
    Value Meaning
    1 < 1 mo.
    2 1-5 mo.
    3 6-11 mo.
    4 1-5 yrs.
    5 > 5 yrs.
Precision: #.
Anticipated Range: 1. thru 5.
Masterfile Index: 812-01-47
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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