chain for 7874 subjects.</h2>

<h3>Description</h3>

<p>This is a stratified random sample containing 1/2 of the subjects from
a study of the relationship between serum free light chain (FLC)
and mortality.  The original sample contains samples on
approximately 2/3 of the residents of Olmsted County aged 50 or greater.
</p>


<h3>Usage</h3>

<pre><code class='language-R'>flchain
data(flchain, package="survival")
</code></pre>


<h3>Format</h3>

<p>A data frame with 7874 persons containing the following vari