Table 1.

Demographic and reporting characteristics of headache-related adverse events.

Characteristics	Categorization	Frequency (N)	Percentage (%)
Age	<18 years	9,184	2.93
	18–30 years	17,472	5.58
	31–50 years	56,794	18.14
	51–65 years	66,862	21.35
	>65 years	48,343	15.44
	Missing	114,511	36.57
Sex	Female	208,746	66.66
	Male	72,601	23.18
	Missing	31,474	10.05
	Unknown	345	0.11
Weight	≤50 kg	6,533	2.09
	>50–≤100 kg	66,462	21.22
	>100 kg	10,548	3.37
	Missing	229,623	73.32
Occupation Reporter	Consumer	171,354	54.72
	Health Professional	49,874	15.93
	Medical Doctor	46,659	14.90
	Pharmacist	16,296	5.20
	Other Work	1,601	0.51
	Others	20,337	6.49
	Not Available	7,045	2.25
Reporter Country	United States	206,270	65.87
	Canada	37,782	12.06
	United Kingdom	12,904	4.12
	Denmark	7,381	2.36
	Country Not Specified	8,271	2.64
	Others	40,558	12.95