Comparison 3. Subcutaneous sumatriptan 8 mg versus placebo.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Pain‐free at 1 h	2	307	Risk Ratio (M‐H, Fixed, 95% CI)	7.19 [3.86, 13.41]
2 Headache relief at 1 h	3	361	Risk Ratio (M‐H, Fixed, 95% CI)	3.58 [2.71, 4.72]