and 731 DF,  p-value: 1.274e-10</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> </span>
<span class="r-in"><span></span></span>
<span class="r-in"><span><span class="co"># Logistic regression of sex on atrophy</span></span></span>
<span class="r-in"><span><span class="va">mri</span><span class="op">$</span><span class="va">sex_bin</span> <span class="op">&lt;-</span> <span class="fu"><a href="https://rdrr.io/r/base/ifelse.html" class="external-link">ifelse</a></span><span class="op">(</span><s