Welsh overview of the England and Wales
Longitudinal Study
Dr Nicola Shelton
Epidemiology and Public Health UCL
n.shelton@ucl.ac.uk
For more information please contact
celsius@ucl.ac.uk
@CelSIUSnews
What is the LS?
• Approximately 1% sample of population of England and
Wales
• Initial sample drawn from 1971 Census
• Selected if birthday falls on one of four days in each year (‘LS
birth dates’)
• Maintained through addition of immigrations and new births
with LS birth dates
• Losses to sample through deaths and out-migrations (though
all records are retained in the database)
• Data from the census and from vital registration (‘events’)
• Census data for the whole household available for each
sample member
Presence of LS members in Wales
All persons born in Wales, present in ONS LS (England and Wales) 2001
20,000
18,000
16,000
14,000
Not in Wales at any
possible LS Census
12,000
In Wales at one or more
but not all possible LS
Censuses
10,000
8,000
In Wales at all possible LS
Censuses
6,000
4,000
2,000
0
Males
Females
Persons
Presence of LS members in Wales
All persons NOT born in Wales, present in ONS LS (England and Wales) 2001
8,000
7,000
6,000
5,000
In Wales at one or more but
not all possible LS
Censuses
4,000
In Wales at all possible LS
Censuses
3,000
2,000
1,000
0
Males
Females
Persons
People currently in Wales
Resident in Wales in 2001 and in the LS n = 28,012
Reported COB was Wales in any LS census
Yes
21,314
%
76.1
No
6,698
%
23.9
Total
28,012
Present in LS by age
% of persons within age group
All persons born in Wales, present in ONS LS (England and Wales) 2001
100
90
80
70
60
Not in Wales at any possible LS
Census
50
In Wales at one or more but not all
possible LS Censuses
40
In Wales at all possible LS Censuses
30
20
10
0
0-9
10-19 20-29 30-39 40-49 50-59 60-69 70-79 80-89 >90
Present in LS by age
% of all persons within age group
All persons NOT born in Wales, present in ONS LS (England and Wales) 2001
3
2.5
2
In Wales at one or more but not all
possible LS Censuses
1.5
In Wales at all possible LS Censuses
1
0.5
0
0-9
10-19 20-29 30-39 40-49 50-59 60-69 70-79 80-89
>90
Welsh speakers in England and Wales LS in 2001
Group
Not born in Wales
Size of group
% of that group capable of
reading Welsh
4,780
5.77
1,918
13.30
3,265
19.17
18,049
23.73
Present in Wales in one but not all possible LS
Censuses
Not born in Wales
Present in Wales all possible LS Censuses
Born in Wales
Present in Wales in one but not all possible LS
Censuses
Born in Wales
Present in Wales all possible LS Censuses
• "The permission of the Office for National
Statistics to use the Longitudinal Study is
gratefully acknowledged, as is the help provided
by staff of the Centre for Longitudinal Study
Information & User Support (CeLSIUS). CeLSIUS
is supported by the ESRC Census of Population
Programme (Award Ref: RES-348-25-0004). The
authors alone are responsible for the
interpretation of the data."
• "Census output is Crown copyright and is
reproduced with the permission of the Controller
of HMSO and the Queen's Printer for Scotland".