What is the total person time at risk contributed by these six participants? The figure below shows the outcome data for a subset of six disease-free participants who were included in the five-month trial. Each line indicates how much person time the participant contributed during the study. Dx = newly diagnosed with diarrhea, lost = lost to follow up. Assume once the person gets chronic diarrhea, they continue to have it. Consider your population at risk to be participants at baseline