Table 1 The different variables of the migbase dataset, each of the symptoms is a binary variable

Migraine, cluster, tension

Migraine with or without aura, cluster, tension

A: 0-4 seconds

Continuous value (sec. between start and end time)

B: 5-119 seconds

C: 120-239 seconds

D: 240-899 seconds

E: 900-1799 seconds

F: 1800-10799 seconds

G: 10800-14399 seconds

H: 14400-259199 seconds

I: 259200-604799 seconds

J: 604800+ seconds

Unilateral, bilateral, orbital

Frontal (right, mid, left), parietal (right, mid, left), temporal (right, left), occipital (right, mid, left), cervical (right, mid, left), orbital (right, left), mandibular (right, left), maxillar (right, left)

< 1; 1−14; 7−365; > 14; > 365, none

Number of days a headache was registered

Mild, moderate, severe

Scale from 1 to 10

Pressing, pulsating, stabbing

Pressing, pulsating, stabbing

2−4; 5−9; 10−19; 20+

Number of headaches registered

None, hour, day

Derived from duration of headaches with aura symptoms

Nausea, vomiting, photophobia, phonophobia, aggravation (by movement), conjunctival injection, lacrimation, pericranial, nasal congestion, rhinorrhoea, eyelid oedema, forehead and facial sweating, miosis, ptosis, speech disturbance, dysarthria, hemiplegic, visual symptoms, sensory symptoms, homonymous symptoms, agitation, motor weakness, vertigo, tinnitus, hypacusia, diplopia, ataxia, decreased consciousness, nasal symptoms, paraesthesias, aura development, headache with aura

Nausea, vomiting, photophobia, phonophobia, aggravation (by movement), lack of appetite, conjunctival injection, lacrimation, nasal congestion, rhinorrhoea, eyelid oedema, forehead and facial sweating, miosis, ptosis, speech disturbance, visual symptoms, sensory symptoms, motor weakness, facial flushing, aural fulness

n/a

Alcohol, sleep deficit, stress, menstruation, fatigue, food, warmth, noise, light