Table 1

 Attacks that responded to sumatriptan nasal spray (n  =  28)

WHO/HIS categoryTotal No headaches30 minute response2 hour response
Nil or mild headache (%)Nil headache (%)Nil or mild headache (%)Nil headache (%)
Treatment response at each time epoch was measured by two criteria: (a) initial severity moderate or severe to subsequent intensity nil or mild; (b) stricter criteria of initial severity moderate to severe to subsequent nil headache.
Migraine with aura74 (57%)2 (29%)6 (86%)5 (71%)
Migraine without aura109 (90%)8 (80%)10 (100%)9 (90%)
Non-migraine headache115 (45%)1 (9%)8 (72%)4 (36%)