Rounding, suppression and grossing
Rounding and suppression is applied to the data. The National Statistics Code of Practice requires that reasonable steps should be taken to ensure that all published or disseminated statistics produced by the DfE protect confidentiality. The publications follow the DfE policy statement on confidentiality.
National and regional figures have been rounded to the nearest 10. Local authority figures are unrounded.
Where any number is shown as zero, the original figure submitted was zero.
The following symbols have been used in the releases (to align with GSS standards):
- ‘c’ to protect confidentiality. Secondary suppression may be required
- ‘z’ for not applicable
- ‘k’ used for a value that would round to zero but is not zero, for example where a percentage is <0.5%
For percentages:
- to protect confidentiality some numbers are replaced by ‘c’
- they may not sum to 100% due to rounding
- they are rounded to whole numbers
For averages:
- the average (mean and median) placement distance has been rounded to zero decimal places.
CLA placements, characteristics and outcomes
The SSDA903 return collects information on the distance of a child's placement from their home, as well as whether the placement falls within or outside the boundary of the responsible local authority. This data has been transformed to derive additional variables, including categorisations of placement distance and locality groups, alongside placement types. Aggregated summaries are then produced, presenting counts, proportions, and average distances for children looked after in each reporting year. A similar approach was taken for the age, ethnicity, UASC status and SDQ scores grouping for children looked after.
The measure considering placement distance against number of placement moves uses the same methodology presented within the recent Stability measures for children looked after in England publication.
The underlying data tables contain a breakdown of child characteristics such as age, gender, ethnicity and SEN provision for CLA at 31 March 2024 by placement type.
Special education need (SEN) provision
The special educational needs (SEN) status is taken from both the school census (SC) and the alternative provision (AP) census. If the entries differ for a single child, a hierarchical structure is applied and an education health and care (EHC) plan is given a higher priority than SEN support. The information is stored together in the social care outcomes data set.
Local authority (LA) breakdowns
The table titled ‘Number of CLA placed inside or outside the LA boundary, by LA,’ which is linked to the LA placer map shows the following:
- Total CLA placed within the LA boundary—this figure includes both CLA who reside and are placed within the responsible LA, as well as those who have been placed into the LA by other LAs.
- CLA who are the responsibility of this LA placed outside the LA boundary—this refers to the number of CLA who are placed in a different local authority from that of their originating home address.
- Net CLA movement across LAs—this is the difference between the two listed above
Secondary suppression has been applied to the table. Note that the definition of 'Net CLA movement across LAs differs slightly to the published table in the CLA annual publication.
Outside neighbouring LA placements
Under the Children Act 1989, LAs must place place a CLA in the most appropriate setting, giving preference to placements with relatives or connected persons. Where reasonably practicable, the placement should enable the child remains close to their home, education, siblings, and support network.
CLA are defined as placed 'outside the neighbouring LAs’ when all three of the following placement criteria are met:
- Placed outside the responsible LA, where their home address is located
- Placed outside the neighbouring LAs that share a physical border with the responsible LA
- Placed over 20 miles from their home address
An internal Department for Education tool was used to identify local authorities which shared a physical border. Based on this, a 2024 neighbouring local authority lookup file was created and joined to the existing children looked after data set to identify the children looked after who met the criteria above.
CLA out of area placement journeys
Definitions:
Episode of care: When a change in legal status or placement (or both) occurs, a new episode of care is started and the date and reason for the change are recorded.
Period of care refers to the duration during which a child is looked after by a LA. This includes both children who newly enter care and those whose care arrangements are transferred between LAs. Where the care of a young person is transferred between LAs, the initial period of care ceases and a new period of care will start at the LA the child transfers to.
CLA placed outside the LA boundary during their period of care were considered, rather than also incorporating a placement distance variable, in order to ensure a sufficient sample size for further breakdowns.
The first instance where a child had an outside the LA boundary placement was used to determine:
- The reason for new episode
- The time between entering care and moving into an outside the LA boundary placement
- The day of the week the child was moved into an outside the LA boundary placement
The re-entry to care measure considers CLA who left that period of care from an outside the LA boundary placement (not necessarily their first outside the LA boundary placement) and determined whether they re-entered care during the subsequent eight-year follow-up period.