Clinical outcome measures in each group (ITT).

Notes: ITT, intention-to-treat;CI, confidence interval;*Frequency of migraine attack, the number of episodes of migraine attacks separated by pain-free intervals of at least 48 hours;¶P values based on t-test between the two groups;†P values based on repeated measures;∥based on analysis of covariance analysis;PT, values for comparison between different time points;PT*G, values for Time*Group interaction;PG, values for comparison between different groups.

注释：ITT（intention-to-treat，意向性治疗分析）；CI（confidence interval，置信区间）；*偏头痛发作频率：指至少间隔48小时无痛期后再次发作的偏头痛发作次数；¶P值基于两组间t检验；†P值基于重复测量分析；∥基于协方差分析；PT：不同时间点间的比较值；PT*G：时间×组间交互作用值；PG：不同组间的比较值。