Details of Element:
W/O Rx, Left Eye Landolt Rings, 20 Ft.
Component of
Vision-Color-Tonography
Unique Name: wrlel
Contained in the
Common BLSA Data Set
? Yes
|
Data Points (as of 09/06/98) |
Males |
Females |
Total |
|
Number of Data Points |
4193 |
1099 |
5292 |
|
Number of Distinct Participants |
1171 |
513 |
1684 |
|
Year First Collected |
1962 |
1978 |
- |
|
Year Last Collected |
1992 |
1992 |
- |
Type of Variable: Absolute Measure
Encoding: Continuous
Units of Measure: (undeclared)
Precision: ##.
Anticipated Range: 00. thru 14.
Masterfile Index: 611-02-05
Related Data Elements: none
Specific to this Data Element:
Inclusion/Exclusion Rules:
n/a
Descriptive History:
(none)
Details
for this Data Type
JM -
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