Details of Element: Right Knee Circumference (Cm)
Component of Body Composition

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

Data Points (as of 09/06/98) Males Females Total
Number of Data Points 8211 3295 11506
Number of Distinct Participants 1472 855 2327
Year First Collected 1959 1978 -
Year Last Collected 1996 1996 -

Type of Variable: Absolute Measure
Encoding: Continuous
Units of Measure: cm
Precision: ##.#
Anticipated Range: 32.0 thru 48.0
Masterfile Index: 161-03-66
Related Data Elements: none
Specific to this Data Element:
    Inclusion/Exclusion Rules: n/a
    Descriptive History:
    Behnke measurement: Middle of the patella.

    K value = 18.3 **pi Dr. Reubin Andres **fc Every visit. January 28, 1998

    Master File Documentation

    File Type: 161

    Card: 3

    Columns: 66-68

    Variable: right knee circumference (cm)

    Clarification of data element descriptions:
    Units - OK; minimum = 30; maximum = 60

    Descriptive history:
    The left knee circumference is part of the Behnke evaluation. Measurements in BLSA men were begun in 1960 and in BLSA women in 1978. The right knee circumference is obtained with a flexible tape measure, manipulated to maintain close contact with the skin without compression of underlying tissues. The right knee circumference is measured at the middle of the patella.

    Data collection methodology:
    Anthropometry

    Related protocols:
    Body composition

    Investigators:
    Dr. Reubin Andres (primary investigator)
    GRC Box-24
    andresr@grc.nia.nih.gov
    (410)-558-8194

    Frequency of data collection:
    Every visit.

    Inclusion/exclusion rules:
    None.

    Publications using these data:
Details for this Data Type
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Revised 09/18/98 -- Send comments to our Web Master .