If an incident (injury/illness) has a status of "No participation" or "Reduced participation", every day from the start to the end of the injury is considered a missed day. If an incident has a status of "Full participation" then it does not count towards missed days.
If there are two or more "No participation" or "Reduced participation" incidents for single day, it will only count as one missed day.
If an incident does not have an end date then every day from the start of the incident up to and including today will be considered a missed day.