dence intervals are based on percentile bootstrap confidence intervals </span>
<span class="r-out co"><span class="r-pr">#&gt;</span> </span>
<span class="r-out co"><span class="r-pr">#&gt;</span> Exposure:  X </span>
<span class="r-out co"><span class="r-pr">#&gt;</span> Tables: </span>
<span class="r-out co"><span class="r-pr">#&gt;</span>  </span>
<span class="r-out co"><span class="r-pr">#&gt;</span> Time:  1 </span>
<span class="r-out co"><span class="r-pr">#&gt;</span>   X  estimate     lower     uppe