Systematic Reviews
Copyright ©The Author(s) 2021.
World J Clin Cases. May 16, 2021; 9(14): 3294-3307
Published online May 16, 2021. doi: 10.12998/wjcc.v9.i14.3294
Table 4 Demographic profile and characters of the headache

Number (%)/mean ± range
Age at onset (n = 66)
Average age38.3 ± 13.0
20-40 yr40 (51.9%)
< 20 yr6 (7.8%)
> 40 yr31 (40.3%)
Sex
Male60 (77.9%)
Female17 (22.1%)
Side
Left43 (55.8%)
Right34 (44.2%)
Sides of headache and structural pathologies (n = 66)
Ipsilateral61 (79.5%)
Midline10 (13.0%)
Contralateral4 (5.2%)
Unknown2 (2.6%)
Attacks not fulfilling ICHD-3
Duration (n = 65)17 (23.3%)
Frequency (n = 57)5 (7.7%)
Headache sites
Orbital/periorbital47 (61.0%)
Temporal23 (30.0%)
Supraorbital16 (20.1%)
Eye/retroorbital26 (33.8%)
Other14 (18.2%)
Associated autonomic symptoms
Lacrimation/conjunctival injection/rhinorrhoea73 (94.5%)
Miosis/ptosis40 (51.2%)
Nasal congestion/eyelid oedema/forehead sweating39 (50.6%)
Nausea/phonophobia/vomiting13 (16.9%)
Persistent miosis/ptosis11 (14.3%)
Additional headaches between attacks18 (23.4%)
Altered neurological examination21 (27.2%)