#format"></a>Format</h2>

    <p>A dataframe</p><dl class='dl-horizontal'>
   <dt>id</dt><dd><p>Unique patient identifier</p></dd>
   <dt>age</dt><dd><p>Age in years</p></dd>
   <dt>age_group</dt><dd><p>Grouped age</p></dd>
   <dt>sex</dt><dd><p>Sex</p></dd>
   <dt>disease_onset</dt><dd><p>Date of onset (date class)</p></dd>
   <dt>disease_ended</dt><dd><p>Date of death or recovery (date class)</p></dd>
   <dt>days_at_risk</dt><dd><p>Number of days at risk of death</p></dd>
   <dt>status</dt><dd><p>Died or 