Comparison 31. OnabotulinumtoxinA 24 units versus OnabotulinumtoxinA 12 units one treatment in crow's feet lines.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
31.1 Any major adverse events (eyelid ptosis, eyelid sensory disorder, strabismus)	1		Risk Ratio (IV, Random, 95% CI)	Totals not selected
31.2 Physician assessment of success by analysing scores and scales	1		Risk Ratio (IV, Random, 95% CI)	Totals not selected
31.2.1 4 weeks	1		Risk Ratio (IV, Random, 95% CI)	Totals not selected
31.2.2 8 weeks	1		Risk Ratio (IV, Random, 95% CI)	Totals not selected
31.2.3 12 weeks	1		Risk Ratio (IV, Random, 95% CI)	Totals not selected
31.3 Total adverse events	1		Risk Ratio (IV, Random, 95% CI)	Totals not selected