pan><span class="co">#&gt; Confidence intervals (CI) are at 95%</span></span>
<span><span class="co">#&gt; </span></span>
<span><span class="co">#&gt; ------------------------------------------------------------</span></span>
<span><span class="co">#&gt; Results of comparing lines among groups.</span></span>
<span><span class="co">#&gt; </span></span>
<span><span class="co">#&gt; H0 : slopes are equal.</span></span>
<span><span class="co">#&gt; Likelihood ratio statistic : 2.367 with 1 degrees of freedom</s