Table 2.

Cost components of Chronic migraine cost-of-illness studies

Study No.	Author (Publication Year)	Hospital visits	Primary care physician	Specialist visits	Drugs	Procedures	Diagnostic Testing	Laboratory Tests	ER visits	Transport	Childcare	Indirect Cost
1	Karli N et al. (2006)	✓	✓	✓	✓		✓
2	Munakata J et al. (2009)	✓	✓	✓	✓				✓			✓
3	Serrano D et al. (2013)											✓
4	Stokes M et al. (2011)	✓	✓	✓	✓	✓	✓	✓	✓
5	Bloudek LM et al. (2012)	✓	✓	✓	✓	✓	✓	✓	✓
6	Stewart WF et al. (2011)											✓
7	Berra E et al. (2015) )	✓	✓		✓		✓
8	Messali A et al. (2016)	✓	✓	✓	✓	✓	✓	✓				✓
9	Silberstein SD et al. (2018)	✓	✓						✓
10	Irimia P et al. (2020)	✓	✓	✓	✓	✓	✓		✓			✓
11	Gibbs SN et al. (2020)		✓		✓	✓			✓	✓	✓
12	Negro A et al. (2019)	✓		✓	✓		✓
13	Hansson-Hedblom A et al. (2020)	✓	✓	✓	✓				✓			✓