Table 2.

Total events by type presented per case reported and number needed to harm. NNH = number needed to harm, calculated for events that were more likely to occur with active compared to sham rTMS as: 1/Absolute Risk Increase (Absolute Risk Increase = Active rTMS event rate – Sham rTMS event rate).

Adverse Event	Sham		Active		NNH
	n	%	n	%
Headache	4	20%	4	20%	–
Pain at application site	1	5%	1	5%	–
Neck pain	0	0%	1	5%	20
Nose bleed	1	5%	0	0%	–
Nausea	0	0%	1	5%	20
Laceration	1	5%	0	0%	–
Congestion	0	0%	1	5%	20
Other	1	5%	1	5%	–