To preserve confidentiality, counts for City of London and Isles of Scilly UA have been combined with those for Hackney LB and Cornwall UA respectively. Rates are per 1000 female population aged 15–17. For conceptions leading to abortions, rates based on fewer than 10 events have been suppressed. Occasionally it has been necessary to apply a secondary suppression to avoid the possibility of disclosure by differencing. Other figures or rates based on counts of less than 5 have been suppressed. The conception rates have been calculated using mid-year population estimates based on the 2011 Census. Conception rates for 2002 to 2010 at national level have been recalculated using mid-year population estimates based on the 2011 Census and therefore may differ from previously published figures. Following the publication of 2011 Census figures, local authority conception statistics for 2011 are now only available on the current local authority boundaries (those in force from 1 April 2009 when new Unitary Authorities were formed).
Further information can be found here: http://www.ons.gov.uk/ons/rel/vsob1/conception-statistics–england-and-wales/2012/index.html
Identification Number: PE189
Authoring Entity: Office for National Statistics
Copyright: National Statistics
Date of Production: 2014-02-25