per_visit_study &lt;dbl&gt;,</span></span>
<span class="r-out co"><span class="r-pr">#&gt;</span> <span style="color: #949494;">#   event_prob_no_mult &lt;dbl&gt;, event_prob &lt;dbl&gt;,</span></span>
<span class="r-out co"><span class="r-pr">#&gt;</span> <span style="color: #949494;">#   event_delta &lt;dbl&gt;</span></span>
<span class="r-in"><span><span class="fu">DBI</span><span class="fu">::</span><span class="fu"><a href="https://dbi.r-dbi.org/reference/dbDisconnect.html" class="external-link">dbDisc