Table 2

Risk ratios and population attributable fractions for prescribed migraine-specific medication before the age of 60 in relation to cardiovascular fitness levels in young adult men

Model 1*, n=1 143 831
Cardiovascular fitness†Migraine /total no.RR (95% CI)PAF (95% CI)
High5 525/3 16 1131.00 (reference)
Medium13 448/6 73 5361.15 (1.12 to 1.19)8.0% (4.0 to 11.7)
Low3 550/1 54 1821.29 (1.24 to 1.35)3.6% (1.7 to 5.3)
Cardiovascular fitness†Model 2‡, n=1 140 973
Migraine /total no.RR (95% CI)PAF (95% CI)
High5517/3 15 6441.00 (reference)
Medium13 411/6 71 8241.14 (1.11 to 1.18)7.5% (3.2 to 11.4)
Low3537/153 5051.27 (1.21 to 1.32)3.3% (1.2 to 5.2)
  • *Adjusted for age, conscription calendar year and region and parental education.

  • †High level=reference category.

  • ‡Adjusted for age, conscription calendar year and region, parental education and BMI.

  • .BMI, body mass index; PAF, population attributable fraction; RR, risk ratio; no., number of events.