Table 2 Age- and gender-adjusted associations between complete migraine prevalence and lifestyle variables, restricted to age groups 35–75 years

Smoking

 Never

1.00

1.00

1.00

 Past

1.74 (1.03, 2.94)

0.91 (0.65, 1.28)

1.00 (0.62, 1.59)

 Current

0.96 (0.53, 1.73)

1.09 (0.76, 1.57)

0.73 (0.44, 1.19)

Physical activity

 None

1.00

1.00

1.00

 ≤2 h/week

0.95 (0.55, 1.62)

0.98 (0.67, 1.43)

1.10 (0.67, 1.80)

 >2 h/week

0.67 (0.39, 1.15)

1.25 (0.86, 1.81)

1.28 (0.81, 2.02)

Alcohol consumption^a

 None

1.00

1.00

1.00

 Moderate

0.81 (0.48, 1.39)

1.03 (0.74, 1.43)

0.83 (0.52, 1.33)

 Increased

0.75 (0.43, 1.31)

0.58 (0.40, 0.84)

0.60 (0.30, 1.20)

Body mass index (kg/m²)

 <25

1.00

1.00

1.00

 25.0–29.9

0.80 (0.47, 1.37)

1.19 (0.85, 1.66)

1.03 (0.64, 1.64)

 ≥30.0

1.05 (0.59, 1.88)

0.95 (0.64, 1.41)

1.12 (0.68, 1.83)

Health index^b

0.93 (0.82, 1.05)

1.02 (0.94, 1.11)

1.05 (0.93, 1.18)