Comparison 1. Needle acupuncture plus Chinese herbs versus Chinese herbs alone.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 50% or greater reduction in seizure frequency	2	120	Risk Ratio (M‐H, Fixed, 95% CI)	1.13 [0.97, 1.31]
2 75% or greater reduction in seizure frequency	2	120	Risk Ratio (M‐H, Fixed, 95% CI)	1.52 [1.12, 2.05]
3 25% or greater reduction in seizure frequency	2	120	Risk Ratio (M‐H, Fixed, 95% CI)	1.02 [0.93, 1.11]
4 75% or greater reduction in seizure duration	2	120	Risk Ratio (M‐H, Fixed, 95% CI)	1.9 [0.97, 3.74]
5 50% or greater reduction in seizure duration	2	120	Risk Ratio (M‐H, Fixed, 95% CI)	1.29 [1.03, 1.62]
6 4 points or greater improvement in EEG	1		Risk Ratio (M‐H, Fixed, 95% CI)	Subtotals only
7 2 points or greater improvement in EEG	1		Risk Ratio (M‐H, Fixed, 95% CI)	Subtotals only
8 Post‐treatment EEG abnormality	2		Risk Ratio (M‐H, Fixed, 95% CI)	Subtotals only
8.1 Any abnormality	2	120	Risk Ratio (M‐H, Fixed, 95% CI)	0.79 [0.59, 1.04]
8.2 Severe abnormality	1	60	Risk Ratio (M‐H, Fixed, 95% CI)	0.33 [0.01, 7.87]
8.3 Moderate abnormality	1	60	Risk Ratio (M‐H, Fixed, 95% CI)	0.67 [0.21, 2.13]
8.4 Mild abnormality	1	60	Risk Ratio (M‐H, Fixed, 95% CI)	0.82 [0.40, 1.68]
8.5 Borderline abnormality	1	60	Risk Ratio (M‐H, Fixed, 95% CI)	1.33 [0.33, 5.45]