- 12-18 aged chronic headache patients, Netherlands 199?
- N = 64
- Non Response:
Questionnaire and diary Headache and Migraine Diary and QLH-Y questionnaire. Diary recording headache intensity and duration four times daily, at breakfast, lunch, dinner and bedtime and medication at each of the four daily measurement points
- Authors's label
- Change in headache
- Our Classification
- Headache index computed by adding up the diary intensities of all diary reported headache attacks during one week and the QLH-Y Questionnaire.
Headache and Migraine Diary records headache intensity and duration four times daily. Headache intensity rated on 5-point numerical scale:
0= "no headache"
1= "headache:I am only aware of it if I pay attention to it"
2= "headache, but I can ignore it at times"
3= "headache- I can't ignore it but I can do my usual activities"
4= "headache - It is difficult for me to concentrate. I can only do easy activities"
5= "headache as such that I can't do anything".
Observed Relation with Happiness
Control for headache in the previous week indicates CHANGE in headache