Fig. 3
Proportion of participantsa,b with ≥ 50% (a, b) or ≥ 75% (c, d) reduction in MAMD. CM, chronic migraine; EM, episodic migraine; MAMD, monthly average migraine days; SE, standard error. aFor participants with EM, response was defined as a reduction of ≥ 2 MAMD. bFor participants with CM, response was defined as a reduction of ≥ 4 MAMD