| Baseline | Months post-initiation | |||||
---|---|---|---|---|---|---|---|
1 | 2 | 3 | 4 | 5 | 6 | ||
Acute medication, mean (SD) | 1.89 (2.86) | 0.57 (0.91)a | 0.22 (0.69)a | 0.25 (0.61)a | 0.31 (1.04)a | 0.24 (0.67)a | 0.25 (0.74)a |
 Triptans | 0.68 (1.12) | 0.30 (0.60)a | 0.08 (0.36)a | 0.09 (0.35)a | 0.11 (0.37)a | 0.10 (0.41)a | 0.08 (0.29)a |
 Ergot alkaloids | 0.04 (0.41) | 0.01 (0.10)c | 0.01 (0.14)b | 0.004 (0.08)b | 0.01 (0.10)b | 0.01 (0.10)c | 0.01 (0.07)b |
 NSAID analgesics | 0.39 (0.95) | 0.08 (0.33)a | 0.03 (0.18)a | 0.04 (0.21)a | 0.05 (0.25)a | 0.03 (0.17)a | 0.05 (0.32)a |
 Opioid analgesics | 0.56 (2.06) | 0.10 (0.49)a | 0.07 (0.34)a | 0.07 (0.31)a | 0.08 (0.58)a | 0.06 (0.39)a | 0.08 (0.42)a |
Preventive nonspecific migraine medication, mean (SD) | 2.22 (2.62) | 0.58 (0.94)a | 0.30 (0.66)a | 0.34 (0.77)a | 0.33 (0.78)a | 0.27 (0.62)a | 0.31 (0.70)a |
 Anticonvulsants/antiepileptics | 0.81 (1.36) | 0.25 (0.56)a | 0.10 (0.35)a | 0.11 (0.41)a | 0.15 (0.57)a | 0.10 (0.39)a | 0.12 (0.40)a |
 Antihypertensive | 0.34 (0.82) | 0.10 (0.35)a | 0.07 (0.30)a | 0.06 (0.28)a | 0.07 (0.30)a | 0.05 (0.27)a | 0.06 (0.29)a |
 Antidepressants | 0.62 (1.21) | 0.12 (0.37)a | 0.07 (0.30)a | 0.09 (0.39)a | 0.06 (0.27)a | 0.06 (0.27)a | 0.07 (0.29)a |
 Botox | 0.14 (0.52) | 0.03 (0.18)a | 0.02 (0.14)a | 0.03 (0.20)a | 0.01 (0.10)a | 0.01 (0.11)a | 0.02 (0.18)a |