t_study: num [1:5] 0.466 0.428 0.464 0.476 0.473</span>
<span class="r-out co"><span class="r-pr">#&gt;</span>   ..$ event_prob_low       : num [1:5] 0 0 1 1 0.99</span>
<span class="r-out co"><span class="r-pr">#&gt;</span>  $ df_eval     : tibble [5 × 10] (S3: tbl_df/tbl/data.frame)</span>
<span class="r-out co"><span class="r-pr">#&gt;</span>   ..$ study_id             : chr [1:5] "A" "A" "A" "A" ...</span>
<span class="r-out co"><span class="r-pr">#&gt;</span>   ..$ site_id              : chr [1:5] "S0