Fig. 3.

Network forest plot of results compared with placebo.

The size of the SMD dots are proportional to the precision of the estimate (one per s.e.). Ethinylestradiol/dienogest (3;2;2;1 mg/0;2;3;0 mg) is a multiphasic combined oral contraceptive that has four different dosages of hormones throughout a 4-week cycle. The dosages before the ‘slash’ refer to the different dosages of ethinylestradiol, and the ones after the ‘slash’ refer to those of dienogest. SMD, standardised mean difference.