Study	Reason for exclusion
Atashkhoii 2006	Unable to obtain evidence of randomisation
Bovenschen 2002	Conscious sedation and analgesia not one of the comparators
Bumen 2010	Conscious sedation and analgesia not one of the comparators
Casati 1999	Conscious sedation and analgesia not one of the comparators
Corson 1994	Conscious sedation and analgesia not one of the comparators
Godoy 1993	Conscious sedation and analgesia not one of the comparators
Gotz 2014	Unable to obtain evidence of randomisation
Hadimioglu 2002	General anaesthesia. Conscious sedation not one of the comparators
Hong 2005	Conscious sedation and analgesia among low‐ and high‐anxiety patients. No comparison with another technique
Manica 1993	Spinal anaesthesia dose finding. Conscious sedation and analgesia not one of the comparators
Martin 1999	Spinal anaesthesia. Conscious sedation and analgesia not one of the comparators
Muir 1995	Subperitoneal xylocaine. Spinal anaesthesia dose finding. Conscious sedation and analgesia not one of the comparators
Ng 1999	Paracervical block with lignocaine vs normal saline vs no paracervical block. Conscious sedation and analgesia not one of the comparators
Ng 2000	Paracervical block dose finding. Conscious sedation and analgesia not one of the comparators
Ng 2002	Premedication versus no premedication. Conscious sedation and analgesia not one of the comparators
Ng 2003	Paracervical block dose finding. Conscious sedation and analgesia not one of the comparators
Oliveira 2016	Conscious sedation and analgesia not one of the comparators
Ongun 2002	Conscious sedation and analgesia not one of the comparators
Ramzy 2001	Conscious sedation and analgesia not one of the comparators
Saleh 2012	Conscious sedation and analgesia not one of the comparators
Sarikaya 2011	Population not clarified. No response from trial author when contacted
Singh 2014	Unable to obtain evidence of randomisation
Tsen 2001	Spinal anaesthesia. Conscious sedation not one of the comparators
Zaccabri 2001	Paracervical block vs vaginal anaesthetic cream. Conscious sedation and analgesia not one of the comparators
Zhang 2013	Conscious sedation and analgesia not one of the comparators