mpling variability):  18.89</span></span>
<span><span class="co">#&gt; </span></span>
<span><span class="co">#&gt; Test for Heterogeneity:</span></span>
<span><span class="co">#&gt; Q(df = 55) = 578.8640, p-val &lt; .0001</span></span>
<span><span class="co">#&gt; </span></span>
<span><span class="co">#&gt; Model Results:</span></span>
<span><span class="co">#&gt; </span></span>
<span><span class="co">#&gt; estimate      se    zval    pval   ci.lb   ci.ub     </span></span>
<span><span class="co">#&gt;   0.