Table 3.

Number needed to harm (NNH), total reported adverse effects broken down by sex, and types of reported adverse effects are shown for each trial group

	Acetaminophen 1000 mg Ibuprofen 400 mg		Acetaminophen 1000 mg Codeine 60 mg		Acetaminophen 1000 mg Ibuprofen 400 mg Codeine 60 mg		Placebo
	n = 50		n = 50		n = 50		n = 50
NNH	50.0		16.7		12.5		n/a
Adverse effects
No. reported	6		8		9		5
Female/male	(5/1)		(6/2)		(8/1)		(2/3)
Reported adverse effects	Female	Male	Female	Male	Female	Male	Female	Male
	2 fatigue 1 stomach pain 1 drowsiness 1 nausea and fatigue	1 fatigue	2 nausea 1 dizziness 1 nausea and stomach pain 1 nausea and dizziness 1 nausea and emesis	1 fatigue 1 stomach pain	3 dizziness and fatigue 1 fatigue 1 dizziness 1 nausea and dizziness 1 nausea, emesis, dizziness and chills 1 feeling intoxicated	1 dizziness	1 nausea 1 nausea, dizziness and headache	1 stomach pain 1 drowsiness 1 fever