. 2020 Sep 10;9(2):615–626. doi: 10.1007/s40122-020-00194-0

Table 3.

Rating of effectiveness of ONS treatment as a function of patient age at time of ONS implantation, the average number of migraine days per month, the MIDAS score, and the years of migraine disorder prior to ONS treatment (n number, SD standard deviation, t t test, df degrees of freedom, p represents the value of probability)

	Effectiveness	n	Average	SD	t	df	p
Age at time of ONS implantation (years)	Responder	375	48.47	10.946	0.625	773	0.531
Age at time of ONS implantation (years)	Non-responder	400	314	21.68	0.625	773	0.531
Average number of migraine days per month	Responder	314	21.68	5.876	1.725	663	0.085
Average number of migraine days per month	Non-responder	351	22.53	6.735	1.725	663	0.085
MIDAS score at treatment start	Responder	369	124.55	65.200	1.542	764	0.123
MIDAS score at treatment start	Non-responder	397	131.70	63.068	1.542	764	0.123
Years of migraine prior to ONS treatment	Responder	305	30.30	12.129	0.473	643	0.636
Years of migraine prior to ONS treatment	Non-responder	340	29.80	14.409	0.473	643	0.636