Table 1.

The healthcare utilization module

Headache type
What type of headache do you have? (You may select more than one option) [one or more]	• I do not know what specific type of headache I have • Tension-type headache • Migraine • Horton's headache (cluster headache) • Post-traumatic headache (after head or neck injury) • Other type of headache
Disease duration
How long have you lived with headache? [one only]	• Less than 1 year • 1–5 years • More than 5 years
Headache frequency
How often do you usually have headache? [one only]	• At least once a week • A couple of times a month • A couple of times a year • Less frequently
Management
I am able to manage my headache attacks well [one only]	• Strongly agree • Agree • Neither agree nor disagree • Disagree • Strongly disagree
Burden
My headache is a burden on my everyday life [one only]	• Strongly agree • Agree • Neither agree nor disagree • Disagree • Strongly disagree
Acute medication intake
What medication do you take when you have a headache? (You may select more than one option) [one or more]	• Migraine medications (e.g., sumatriptan, eletriptan, relpax, rizatriptan, maxalt, zolmitriptan or other triptan) [if respondent reported migraine] • Over-the-counter/simple analgesics (e.g., ibuprofen, ipren, paracetamol, pinex, pamol, naproxen, combination medications) • Strong analgesics (e.g. codeine, tramadol, oxycodone, morphine) • Other • I do not take pain medications [Brand names were listed in addition to generic names]
Healthcare utilization (conventional medical care)
How long did it take from the time of your onset of headache until you consulted your doctor? [one only]	• I have not been to the doctor for my headache • Up 1 year • Up to 5 years • More than 5 years
Healthcare utilization (complementary and alternative medicine)
Have you sought a different type of treatment provider for your headache than your general practitioner/other medical doctor? [one only]	• No, never • Yes, one other provider • Yes, several different providers