Raggi A, Leonardi M, Arruda M, Caponnetto V, Castaldo M, Coppola G et al (2024) Hallmarks of primary headache: part 1 - migraine. J Headache Pain 25(1):189. https://doi.org/10.1186/s10194-024-01889-x

Article  PubMed  PubMed Central  Google Scholar 

Mirmosayyeb O, Barzegar M, Nehzat N, Shaygannejad V, Sahraian MA, Ghajarzadeh M (2020) The prevalence of migraine in multiple sclerosis (MS): A systematic review and meta-analysis. J Clin Neurosci 79:33–38. https://doi.org/10.1016/j.jocn.2020.06.021

Article  PubMed  Google Scholar 

Wang L, Zhang J, Deng ZR, Zu MD, Wang Y (2021) The epidemiology of primary headaches in patients with multiple sclerosis. Brain Behav 11(1):e01830. https://doi.org/10.1002/brb3.1830

Article  PubMed  Google Scholar 

Mohammadi M, Kankam SB, Salehi S, Mohamadi M, Mohammadi A, Firoozabadi SRD et al (2023) The association between multiple sclerosis and migraine: a meta-analysis. Mult Scler Relat Disord 79:104954. https://doi.org/10.1016/j.msard.2023.104954

Article  PubMed  Google Scholar 

Belbasis L, Bellou V, Evangelou E, Tzoulaki I (2020) Environmental factors and risk of multiple sclerosis: findings from meta-analyses and Mendelian randomization studies. Mult Scler 26(4):397–404. https://doi.org/10.1177/1352458519872664

Article  PubMed  Google Scholar 

Niu PP, Wang X, Xu YM (2022) Higher circulating vitamin d levels are associated with decreased migraine risk: a mendelian randomization study. Front Nutr 9:907789. https://doi.org/10.3389/fnut.2022.907789

Article  CAS  PubMed  PubMed Central  Google Scholar 

Yuan S, Daghlas I, Larsson SC (2022) Alcohol, coffee consumption, and smoking in relation to migraine: a bidirectional Mendelian randomization study. Pain 163(2):e342–e348. https://doi.org/10.1097/j.pain.0000000000002360

Article  PubMed  Google Scholar 

Martami F, Jayedi A, Shab-Bidar S (2022) Primary headache disorders and body mass index categories: a systematic review and dose-response meta-analysis. Headache 62(7):801–810. https://doi.org/10.1111/head.14356

Article  PubMed  Google Scholar 

Eid K, Torkildsen O, Aarseth J, Aalstad M, Bhan A, Celius EG et al (2022) Association of adverse childhood experiences with the development of multiple sclerosis. J Neurol Neurosurg Psychiatry. https://doi.org/10.1136/jnnp-2021-328700

Article  PubMed  Google Scholar 

Sikorski C, Mavromanoli AC, Manji K, Behzad D, Kreatsoulas C (2023) Adverse childhood experiences and primary headache disorders: a systematic review, meta-analysis, and application of a biological theory. Neurology 101(21):e2151–e2161. https://doi.org/10.1212/WNL.0000000000207910

Article  PubMed  PubMed Central  Google Scholar 

Horton MK, Robinson SC, Shao X, Quach H, Quach D, Choudhary V et al (2023) Cross-trait mendelian randomization study to investigate whether migraine is a risk factor for multiple sclerosis. Neurology 100(13):e1353–e1362. https://doi.org/10.1212/WNL.0000000000206791

Article  PubMed  PubMed Central  Google Scholar 

Kister I, Caminero AB, Herbert J, Lipton RB (2010) Tension-type headache and migraine in multiple sclerosis. Curr Pain Headache Rep 14(6):441–448. https://doi.org/10.1007/s11916-010-0143-5

Article  PubMed  Google Scholar 

Kister I, Munger KL, Herbert J, Ascherio A (2012) Increased risk of multiple sclerosis among women with migraine in the Nurses’ Health Study II. Mult Scler 18(1):90–97. https://doi.org/10.1177/1352458511416487

Article  PubMed  Google Scholar 

Wijnands JMA, Kingwell E, Zhu F, Zhao Y, Hogg T, Stadnyk K et al (2017) Health-care use before a first demyelinating event suggestive of a multiple sclerosis prodrome: a matched cohort study. Lancet Neurol 16(6):445–451. https://doi.org/10.1016/S1474-4422(17)30076-5

Article  PubMed  Google Scholar 

Disanto G, Zecca C, MacLachlan S, Sacco R, Handunnetthi L, Meier UC et al (2018) Prodromal symptoms of multiple sclerosis in primary care. Ann Neurol 83(6):1162–1173. https://doi.org/10.1002/ana.25247

Article  PubMed  Google Scholar 

Wijnands JM, Zhu F, Kingwell E, Zhao Y, Ekuma O, Lu X et al (2019) Five years before multiple sclerosis onset: Phenotyping the prodrome. Mult Scler 25(8):1092–1101. https://doi.org/10.1177/1352458518783662

Article  PubMed  Google Scholar 

Eid K, Torkildsen OF, Aarseth J, Flemmen HO, Holmoy T, Lorentzen AR et al (2021) Perinatal depression and anxiety in women with multiple sclerosis: a population-based cohort study. Neurology 96(23):e2789–e2800. https://doi.org/10.1212/WNL.0000000000012062

Article  PubMed  PubMed Central  Google Scholar 

Chertcoff AS, Yusuf FLA, Zhu F, Evans C, Fisk JD, Zhao Y et al (2023) Psychiatric comorbidity during the prodromal period in patients with multiple sclerosis. Neurology 101(20):e2026–e2034. https://doi.org/10.1212/WNL.0000000000207843

Article  CAS  PubMed  PubMed Central  Google Scholar 

Marrie RA, Allegretta M, Barcellos LF, Bebo B, Calabresi PA, Correale J et al (2022) From the prodromal stage of multiple sclerosis to disease prevention. Nat Rev Neurol 18(9):559–572. https://doi.org/10.1038/s41582-022-00686-x

Article  PubMed  Google Scholar 

Rosciszewska-Zukowska I, Galiniak S, Bartosik-Psujek H. Clinical Characteristics of Headache in Multiple Sclerosis Patients: A Cross-Sectional Study. J Clin Med. 2023;12(10). https://doi.org/10.3390/jcm12103518

Villani V, Prosperini L, Ciuffoli A, Pizzolato R, Salvetti M, Pozzilli C et al (2008) Primary headache and multiple sclerosis: preliminary results of a prospective study. Neurol Sci 29(Suppl 1):S146–S148. https://doi.org/10.1007/s10072-008-0908-3

Article  PubMed  Google Scholar 

Rolak LA, Brown S (1990) Headaches and multiple sclerosis: a clinical study and review of the literature. J Neurol 237(5):300–302. https://doi.org/10.1007/BF00314746

Article  CAS  PubMed  Google Scholar 

Gebhardt M, Kropp P, Jurgens TP, Hoffmann F, Zettl UK (2017) Headache in the first manifestation of Multiple Sclerosis - Prospective, multicenter study. Brain Behav 7(12):e00852. https://doi.org/10.1002/brb3.852

Article  PubMed  PubMed Central  Google Scholar 

Magnus P, Birke C, Vejrup K, Haugan A, Alsaker E, Daltveit AK et al (2016) cohort profile update: the norwegian mother and child cohort study (MoBa). Int J Epidemiol 45(2):382–388. https://doi.org/10.1093/ije/dyw029

Article  PubMed  Google Scholar 

Myhr KM, Grytten N, Torkildsen O, Wergeland S, Bo L, Aarseth JH (2015) The Norwegian multiple sclerosis registry and biobank. Acta Neurol Scand 132(199):24–28. https://doi.org/10.1111/ane.12427

Article  PubMed  Google Scholar 

Bakken IJ, Ariansen AMS, Knudsen GP, Johansen KI, Vollset SE (2020) The Norwegian patient registry and the Norwegian registry for primary health care: research potential of two nationwide health-care registries. Scand J Public Health 48(1):49–55. https://doi.org/10.1177/1403494819859737

Article  PubMed  Google Scholar 

[Helsedirektoratet] TNDoH: National guidelines for perinatal health care [Svangerskapsomsorgen: Nasjonal faglig retningslinje]. 2018. https://www.helsedirektoratet.no/retningslinjer/svangerskapsomsorgen. Accessed 9 Oct 2023

Benjaminsen E, Myhr KM, Grytten N, Alstadhaug KB (2019) Validation of the multiple sclerosis diagnosis in the Norwegian Patient Registry. Brain Behav 9(11):e01422. https://doi.org/10.1002/brb3.1422

Article  PubMed  PubMed Central  Google Scholar 

Thompson AJ, Banwell BL, Barkhof F, Carroll WM, Coetzee T, Comi G et al (2018) Diagnosis of multiple sclerosis: 2017 revisions of the McDonald criteria. Lancet Neurol 17(2):162–173. https://doi.org/10.1016/S1474-4422(17)30470-2

Article  PubMed  Google Scholar 

Magnus P, Irgens LM, Haug K, Nystad W, Skjaerven R, Stoltenberg C et al (2006) Cohort profile: the Norwegian Mother and Child Cohort Study (MoBa). Int J Epidemiol 35(5):1146–1150. https://doi.org/10.1093/ije/dyl170

Article  PubMed  Google Scholar 

Schürks M, Buring J, Kurth T (2009) Agreement of Self-Reported Migraine With ICHD-II Criteria in the Women’s Health Study. Cephalalgia 29(10):1086–1090. https://doi.org/10.1111/j.1468-2982.2008.01835.x

Article  PubMed  PubMed Central