Key clinical point: Delivery by cesarean section is not associated with migraine later in life. However, cesarean section is associated with a modestly reduced risk of non-migrainous headache.
Major finding: Delivery by cesarean section was not associated with later development of migraine (adjusted odds ratio [aOR], 0.93; P = .63). A negative association was seen between cesarean section and non-migrainous headache (aOR, 0.77; P = .04).
Study details: The findings are based on a retrospective register-linked HUNT population cohort study of 11,194 participants (age, 19-41 years; migraine group, n=1,855 and non-migrainous headache group, n=3,358).
Disclosures: This study was supported by grants from the University of Oslo, Akershus University Hospital, and Oslo University Hospital. The authors declared no conflicts of interest.
Source: Kristoffersen ES et al. BMJ Open. 2020 Nov 18. doi: 10.1136/bmjopen-2020-040685.