CEFREF tracks Headache- / Painkiller-Days over the previous calendar month. Data bars only appear at month end (i.e. data collected from July, will only appear 1st August).

 

Each bar consists of blocks indicating monthly 'Mild', 'Moderate' and 'Severe' Headache-Days. Light blue line indicates monthly Painkiller-Days.

 

Headache-Days and Painkiller-Days for the highlighted month are displayed in circles below.