There are relatively few long-term follow-up studies of people with migraine.[Bigal & Lipton, 2008] However, two small-scale studies followed cohorts of people with migraine over decades, and found remission rates of 36% and 42%.[Eriksen et al., 2004; Lyngberg et al., 2005] Remission rate tends to increase with age.[Bigal & Lipton, 2008] However, the dearth of long-term studies highlights the need for more research into the prognosis of migraine, including risk factors for progression and predictors of remission.[Bigal & Lipton, 2008]
References:
Bigal ME, Lipton RB. The prognosis of migraine. Curr Opin Neurol 2008; 21 (3): 301–308.