Summary of results A: Number of participants with ≥ 50% pain relief over 4 to 6 hours
Dose	Studies	Participants	Ibuprofen (%)	Placebo (%)	NNT (95%CI)
50 mg	3	316	31	10	4.7 (3.3 to 8.0)
100 mg	4	396	31	8	4.3 (3.2 to 6.4)
200 mg	20	2690	46	9	2.7 (2.5 to 3.0)
400 mg	61	6475	54	14	2.5 (2.4 to 2.6)
600 mg	3	203	77	40	2.7 (2.0 to 4.2)
800 mg	1	76	100	38	1.6 (1.3 to 2.2)