Trend
Trend uses a rolling 28-day calculation to show how the most recent 28-day picture changes day by day.
CEFREF / CHARTS
Charts
Use Trend, Free Days and the review charts to understand how your recorded headache and painkiller days change over time.
Day-to-day patterns
Headache/Painkiller Free Days
These show the current consecutive number of headache-free and painkiller-free days, counting backwards from Today.
Rolling reviews
28-day Review
It uses adjacent 28-day blocks: 0 is the current block ending Today, -1 is the preceding 28 days, -2 is the preceding 28 days, and so on. These are raw counts.
84-day Review
It uses complete rolling 84-day blocks. Results are shown as an average per 28 days.
Calendar and longer-period reviews
Month Review
Each bar shows a complete calendar month; the current incomplete month is excluded. Results are raw monthly counts.
3-Month Review
Each bar covers three complete consecutive eligible calendar months, excluding the current incomplete month. Results are shown as an average per month; these periods are not necessarily fixed calendar quarters.
Where to next?
For basic day-by-day review, see View Your Diary in Recording & Diary.
Important
CEFREF is a recording and review tool, not a diagnostic service or a substitute for medical assessment. Seek appropriate medical advice for new, severe or changing symptoms.