Study	Reason for exclusion
Blanchard 2003	Not a randomized controlled trial.
Ellertson 2001	Proportion of women in each treatment arm who became pregnant during follow‐up not clearly reported; raw data unavailable
Endres 2000	Not a randomized controlled trial.
Glasier 1998	Not a randomized controlled trial.
Glasier 2004	Not a randomized controlled trial.
Golden 2004	Randomized controlled trial of partner notification, not advance provision. Collected qualitative data on EC interest.
Golden 2009	Intervention was advanced prescription, not advanced provision of emergency contraception
Harper 2005	Based on same data as Raine 2005, restricted to adolescents.
Larsson 2006	Not a randomized controlled trial.
London 2006	Review of Harper 2005.
Lovvorn 2000	Not a randomized controlled trial.
Ng 2003	Did not collect pregnancy data.
Petersen 2007	Did not collect pregnancy data.
Raine 2000	Not a randomized controlled trial.
Rocca 2007	Derivative of Raine 2005, did not assess pregnancy as an outcome
Sander 2009	Derivative of Raymond 2006, used only data from control arm.
Skibiak 1999	Not a randomized controlled trial.
Stehle 1999	Appears on PubMed as a randomized controlled trial, but actually a review of Glasier 1998
Teal 2008	Not a randomized controlled trial (alternate assignment).
Walker 2006	Intervention is not advance provision of emergency contraception
Walsh 2006	Not conducted as a randomized controlled trial since no attempt was made to follow‐up 70% of randomized participants.