Abstract copyright UK Data Service and data collection copyright owner.

The 1970 British Cohort Study (BCS70) is a longitudinal birth cohort study, following a nationally representative sample of over 17,000 people born in England, Scotland and Wales in a single week of 1970. Cohort members have been surveyed throughout their childhood and adult lives, mapping their individual trajectories and creating a unique resource for researchers. It is one of very few longitudinal studies following people of this generation anywhere in the world.

Since 1970, cohort members have been surveyed at ages 5, 10, 16, 26, 30, 34, 38, 42, 46, and 51. Featuring a range of objective measures and rich self-reported data, BCS70 covers an incredible amount of ground and can be used in research on many topics. Evidence from BCS70 has illuminated important issues for our society across five decades. Key findings include how reading for pleasure matters for children's cognitive development, why grammar schools have not reduced social inequalities, and how childhood experiences can impact on mental health in mid-life. Every day researchers from across the scientific community are using this important study to make new connections and discoveries.

BCS70 is run by the Centre for Longitudinal Studies (CLS), a research centre in the UCL Institute of Education, which is part of University College London. The content of BCS70 studies, including questions, topics and variables can be explored via the CLOSER Discovery website.

How to access genetic and/or bio-medical sample data from a range of longitudinal surveys:
For information on how to access biomedical data from BCS70 that are not held at the UKDS, see the CLS Genetic data and biological samples webpage.

Secure Access datasets
Secure Access versions of BCS70 have more restrictive access conditions than versions available under the standard End User Licence (EUL).

The 1970 British Cohort Study: Age 38, Sweep 8 Geographical Identifiers, 2008-2009: Secure Access data includes detailed sweep 8 geographical variables that can be linked to the main 38-year follow-up End User Licence data available under SN 6557.

International Data Access Network (IDAN)
These data are now available to researchers based outside the UK. Selected UKDS SecureLab/controlled datasets from the Institute for Social and Economic Research (ISER) and the Centre for Longitudinal Studies (CLS) have been made available under the International Data Access Network (IDAN) scheme, via a Safe Room access point at one of the UKDS IDAN partners. Prospective users should read the UKDS SecureLab application guide for non-ONS data for researchers outside of the UK via Safe Room Remote Desktop Access. Further details about the IDAN scheme can be found on the UKDS International Data Access Network webpage and on the IDAN website.

Latest edition information:
For the second edition (October 2018), the data and documentation have been updated.

Main Topics:

The study includes the following variables:

• Country at Interview
• Government Office Region at Interview 2010
• Ward Code 1998
• Census Statistic Ward Code 2003
• Census Output Code 2001
  
• Census Lower Super Output Area Code 2001
• Census Middle Super Output Area Code 2001
• Local Authority District / Unitary Authority 2009
• Westminster Parliamentary Constituencies 2005
• Local Education Authority 2004
  

Abstract copyright UK Data Service and data collection copyright owner.

The 1970 British Cohort Study (BCS70) began in 1970 when data were collected about the births and families of babies born in the United Kingdom in one particular week in 1970. Since then, there have been nine further full data collection exercises in order to monitor the cohort members' health, education, social and economic circumstances. These took place when respondents were aged 5 in 1975, aged 10 in 1980, aged 16 in 1986, aged 26 in 1996, aged 30 in 1999-2000 (SN 5558), aged 34 in 2004-2005, aged 42 in 2012 and aged 46 in 2016-18. Cohort members have been surveyed throughout their childhood and adult lives, mapping their individual trajectories and creating a unique resource for researchers.

Featuring a range of objective measures and rich self-reported data, BCS70 covers an incredible amount of ground and can be used in research on many topics. It is one of very few longitudinal studies following people of this generation anywhere in the world.

Evidence from BCS70 has illuminated important issues for society across five decades. Key findings include how reading for pleasure matters for children’s cognitive development, why grammar schools have not reduced social inequalities, and how childhood experiences can impact on mental health in mid-life. Every day researchers from across the scientific community are using this important study to make new connections and discoveries.

Further information about the BCS70 and may be found on the Centre for Longitudinal Studies website. As well as BCS70, the CLS now also conducts the NCDS series.

A range of BCS sub-sample and supplementary surveys have also been conducted, and a separate dataset covering response to BCS70 over all waves is available under SN 5641, 1970 British Cohort Study Response Dataset, 1970-2012.

How to access genetic and/or bio-medical sample data from a range of longitudinal surveys:
For information on how to access biomedical data from BCS70 that are not held at the UKDS, see the CLS Genetic data and biological samples webpage.

The 1970 British Cohort Study: Age 10, Sweep 3 Geographical Identifiers,1980: Secure Access data includes detailed sweep 3 geographical variables that can be linked to the main 10-year follow-up End User Licence data available under SN 3723.

Repair work to the postcode level information held for BCS 1980 was required prior to the production of this dataset, and involved extracting and coding addresses from original forms for this sweep. The work was funded and carried out by the Cohorts and Longitudinal Studies Enhancement Resources (CLOSER). For further information about CLOSER see www.closer.ac.uk.

International Data Access Network (IDAN)
These data are now available to researchers based outside the UK. Selected UKDS SecureLab/controlled datasets from the Institute for Social and Economic Research (ISER) and the Centre for Longitudinal Studies (CLS) have been made available under the International Data Access Network (IDAN) scheme, via a Safe Room access point at one of the UKDS IDAN partners. Prospective users should read the UKDS SecureLab application guide for non-ONS data for researchers outside of the UK via Safe Room Remote Desktop Access. Further details about the IDAN scheme can be found on the UKDS International Data Access Network webpage and on the IDAN website.

Latest edition information:
For the second edition (December 2017), a replacement file including updated Parliamentary constituency boundaries, which more closely reflect the year of interview, has been deposited.


Main Topics:

The study includes the following variables:

• Country of Residence at interview
• Standard Statistical Region (pre-1998 boundaries)
• Counties (1981 boundaries)
• Local Authority Districts (1981 boundaries)
• Parliamentary Constituencies (1983 boundaries)
• Wards (1981 boundaries)
• Census Enumeration Districts (1981 boundaries)

ONS Mid-year estimates (MYE) of resident populations for London boroughs are available in the following files:

Read the GLA Intelligence Updates about the MYE data for 2011 and 2012.

Mid-year population by single year of age (SYA) and sex, for each year 1999 to 2013.

ONS mid-year estimates data back to 1961 total population for each year since 1961.

These files take into account the revised estimates released in 2010.

Ward level Population Estimates

London wards single year of age data covering each year since 2002.

Custom Age Range Tool

An Excel tool is available that uses Single year of age data that enables users to select any age range required.

ONS policy is to publish population estimates rounded to at least the nearest hundred persons. Estimates by single year of age, and the detailed components of change are provided in units to facilitate further calculations. They cannot be guaranteed to be as exact as the level of detail implied by unit figures.

Estimates are calculated by single year of age but these figures are less reliable and ONS advise that they should be aggregated to at least five-year age groupings for use in further calculations, onwards circulation, or for presentation purposes. (Splitting into 0 year olds and 1-4 year olds is an acceptable exception).

ONS mid-year population estimates data by 5 year age groups going all the way back to 1981, are available on the NOMIS website.

Data are Crown Copyright and users should include a source accreditation to ONS - Source: Office for National Statistics. Under the terms of the Open Government License (OGL) and UK Government Licensing Framework, anyone wishing to use or re-use ONS material, whether commercially or privately, may do so freely without a specific application. For further information, go to http://www.nationalarchives.gov.uk/doc/open-government-licence/ or phone 020 8876 3444.

For a detailed explanation of the methodology used in population estimates, see papers available on the Population Estimates section of the ONS website www.statistics.gsi.gov.uk/popest. Additional information can also be obtained from Population Estimates Customer Services at pop.info@ons.gsi.gov.uk (Tel: 01329 444661).

This dataset is intended for researchers, students, and policy makers for reference and mapping purposes, and may be used for basic applications such as viewing, querying, and map output production, or to provide a basemap to support graphical overlays and analysis with other spatial data.

Abstract

The 2001 Nepal Demographic and Health Survey (NDHS) is a nationally representative survey of 8,726 women age 15-49 and 2,261 men age 15-59. This Survey is the sixth in a series of national-level population and health surveys conducted in Nepal. It is the second nationally representative comprehensive survey conducted as part of the global Demographic and Health Survey (DHS) program, the first being the 1996 Nepal Family Health Survey (NFHS). The 2001 NDHS is the first in the history of demographic and health surveys conducted in Nepal that included a male sample. The 2001 NDHS was carried out under the aegis of the Family Health Division of the Department of Health Services, Ministry of Health, and was implemented by New ERA, a local research organization, which also conducted the 1996 NFHS. ORC Macro provided technical support through its MEASURE DHS+ project. The survey was funded by the United States Agency for International Development (USAID) through its mission in Nepal.

The principal objective of the 2001 NDHS is to provide current and reliable data on fertility and family planning, infant and child mortality, children's and women's nutritional status, the utilization of maternal and child health services, and knowledge of HIV/AIDS. This information is essential for informed policy decisions, planning, monitoring, and evaluation of programs on health in general and reproductive health in particular at both the national and regional levels.

A long-term objective of the survey is to strengthen the technical capacity of the Family Health Division of the Ministry of Health to plan, conduct, process, and analyze data from complex national population and health surveys. The 2001 NDHS data is comparable to data collected in the 1996 NFHS and similar to survey data conducted in other developing countries. This allows for temporal and spatial comparisons of demographic health information. The 2001 NDHS also adds to the vast and growing international database on demographic and health variables. The inclusion of data on men adds to the richness of this data.

Geographic coverage

The 2001 NDHS collected demographic and health information from a nationally representative sample of ever-married women and men in the reproductive age groups of 15-49 and 15-59, respectively. The primary focus of the 2001 NDHS was to provide estimates of key population and health indicators, including fertility and mortality rates, for the country as a whole and for urban and rural areas separately.

Analysis unit

• Household
• Women age 15-49
• Men age 15-59

Universe

The population covered by the 2008 DHS is defined as the universe of all women ever-married women and men in the reproductive age groups of 15-49 and 15-59

Kind of data

Sample survey data

Sampling procedure

The survey was designed to obtain completed interviews of 8,400 ever-married women age 15-49. In addition, all ever-married males age 15-59 in every third household were interviewed. To take nonresponse into account, a total of 8,700 households nationwide were selected. The sample size was allocated to each district by urban and rural areas and the numbers of PSUs were calculated based on an average sample "take" (the number of ultimate sampled units in a cluster) of 34 completed interviews per PSU.

SAMPLE DESIGN

The 2001 NDHS collected demographic and health information from a nationally representative sample of ever-married women and men in the reproductive age groups of 15-49 and 15-59, respectively. The primary focus of the 2001 NDHS was to provide estimates of key population and health indicators, including fertility and mortality rates, for the country as a whole and for urban and rural areas separately. In addition, the sample was designed to provide estimates of most key variables for the 13 domains obtained by cross-classifying the three ecological zones (mountains, hills, and terai) with the five development regions (Eastern, Central, Western, Mid-western, and Far-western). Due to their small size, the mountain areas of the Western, Mid-western, and Far-western regions were combined.

SAMPLING FRAME

The 2001 NDHS used the sampling frame provided by the list of census enumeration areas (EAs) with population and household information from the 1991 Population Census. Administratively, Nepal is divided into 75 districts. Each district is subdivided into village development committees (VDCs), and each VDC is divided into wards. The primary sampling unit (PSU) for the 2001 NDHS is a ward or group of wards in rural areas and subwards in urban areas. In rural areas, the ward is small enough for a complete household listing, but in urban areas, the ward size is large. It was therefore necessary to subdivide each urban ward into subwards. Information on the subdivision of the urban wards was obtained from the Living Standards Measurement Survey, a project funded by the World Bank.

SAMPLE SELECTION

The sample for the survey is based on a two-stage, stratified, nationally representative sample of households. At the first stage of sampling, 257 PSUs - 42 in urban areas and 215 in rural areas were selected using systematic sampling with probability proportional to size. During fieldwork, six PSUs in the Mid-western region were dropped from the sample due to security issues, reducing the total number of PSUs covered to 251 and reducing the number of rural PSUs to 209. This also reduced the expected number of completed interviews to 8,170 from 8,400.

A complete household listing operation was then carried out in all the selected EAs to provide a sampling frame for the second-stage selection of households. Sketch maps were constructed to identify the relative position of housing units in an EA to help interviewers locate selected households during fieldwork. Table A.1 shows the sample distribution of PSUs.

Global positioning system (GPS) units were used to calculate latitude and longitude coordinates for each selected ward (or subward) during the household listing stage. One latitude/longitude coordinate was taken for the center of each settlement or community within the ward. The altitude reading was also taken with the GPS units. The positional accuracy of the GPS readings is approximately 5 to 10 meters for latitude/longitude and approximately 30 meters for altitude. This geographic information allows the 2001 NDHS data to be integrated into a geographic information system (GIS) along with other spatial data collected in the same localities and adds to the depth of information available from the 2001 NDHS.

At the second stage of sampling, systematic samples of 34 households per PSU on average were selected in all the regions in order to provide statistically reliable estimates of key demographic and health variables. However, since Nepal is predominantly rural, in order to obtain statistically reliable estimates for urban areas, it was necessary to oversample the urban areas. As such, the total sample is weighted and a final weighting procedure was applied to provide estimates for the different domains and for the urban and rural areas of the country as a whole.

Mode of data collection

Face-to-face

Research instrument

The 2001 NDHS used three questionnaires: the Household Questionnaire, the Women's Questionnaire, and the Men's Questionnaire. The content and design of the questionnaires were based on the MEASURE DHS+ Model 'B' Questionnaire. The questionnaires were specifically geared toward obtaining the kind of information needed by health and family planning program managers and policymakers. The model questionnaires were then adapted to local conditions and a number of additional questions specific to ongoing health and family planning programs in Nepal were added. These questionnaires were developed in English and translated into the three principal languages in use in the country: Nepali (the national language), Bhojpuri, and Maithili. They were then independently translated back to English and appropriate changes were made in the translation of questions in which the back-translated version did not compare well with the original English version. A pretest of all three questionnaires was conducted in the three local languages in September 2000.

a) All usual members in a selected household and visitors who stayed there the previous night were enumerated using the Household Questionnaire. Specifically, the Household Questionnaire obtained information on the relationship to the head of the household, residence, sex, age, marital status, and education of each usual resident or visitor. This information was used to identify eligible women and men for the individual interview. Ever-married women age 15-49 in all selected households and ever-married men age 15-59 in every third selected household, whether usual residents or visitors, were deemed eligible and were interviewed. The Household Questionnaire also obtained information on some basic socioeconomic indicators such as the source of drinking water, the type of toilet facilities, the ownership of a variety of consumer durable items, and the flooring material. All eligible women and all children born since Baisakh 2052 in the Nepali calendar (which roughly corresponds to April 1995 in the Gregorian calendar) were weighed and measured.

b) The Women's Questionnaire collected information on female respondent's background characteristics; reproductive history; contraceptive knowledge and use; antenatal, delivery, and postnatal care; infant feeding practices; child immunization and health; marriage; fertility preferences; attitudes about family planning;

This data shows Education Attainment at Key Stage 2. Numbers and percentages of pupils reaching the expected standard in reading, writing, and mathematics are shown by gender.

Points to be aware of:

• Key Stage 2 attainment is based on the percentage of pupils achieving the expected standard or above in each of Reading and Maths Tests and Writing Teacher Assessment. More Information: see the Primary Curriculum, Key Stage 2 website (link to this included as Resource accompanying these datasets).

Data is included for Wards, Lower Super Output Areas (LSOA), Districts, and Lincolnshire. The data has been aggregated based on pupil postcode and only includes those pupils living and educated within Lincolnshire. If you want Lincolnshire and District aggregations based on those pupils that are educated within Lincolnshire, irrespective of where they live; then please see the Department for Education Statistics website and School Performance Tables (links to these included as Resources accompanying these datasets).

Data is suppressed where appropriate 5 persons and below (this may be shown by missing data). That and any unmatched postcodes may mean numbers for small areas might not add up exactly to figures shown for larger areas.

This data is updated annually. Data source: Lincolnshire County Council, Performance Services – Schools Performance.

For any enquiries about this publication please contact schoolperformancedata@lincolnshire.gov.uk

Please note: National data for Key Stage 2 results are published via: Key stage 2 attainment, Academic year 2022/23 – Explore education statistics – GOV.UK (explore-education-statistics.service.gov.uk)

“These statistics cover the attainment of year 6 pupils who took assessments in summer 2023. These pupils experienced disruption to their learning during the pandemic, particularly at the end of year 3 and in year 4.”

This data shows Education Attainment, at Early Years Foundation Stage, Year 1 Phonics assessments, and Key Stage 1 teacher assessments. Numbers and percentages of pupils are shown by gender.

A brief outline of the attainment levels:

• A Good level of Development at Foundation Stage means children achieving at least the expected level within the following areas of learning: communication and language; physical development; personal, social and emotional development; literacy; and mathematics.

• Year 1 Phonics attainment is based on the percentage of pupils meeting the standard of the Phonics decoding screening check.

• Key Stage 1 attainment is based on the percentage of pupils achieving the expected standard or above in each of Reading, Writing and Maths Teacher Assessments.

More information about the Early Years Foundation Stage and Primary Key Stage 1 curriculums is available on the Department for Education (DfE) School Curriculum website; a link to that is included along with the dataset.

Data is included for Wards, Lower Super Output Areas (LSOA), Districts, and Lincolnshire. The data has been aggregated based on pupil postcode and only includes those pupils living and educated within Lincolnshire. If you want Lincolnshire and District aggregations based on those pupils that are educated within Lincolnshire, irrespective of where they live; then please see the Department for Education Statistics website and School Performance Tables (links to these included as Resources accompanying these datasets).

Data is suppressed where appropriate 5 persons and below. That and any unmatched postcodes may mean numbers for small areas might not add up exactly to figures shown for larger areas.

This data is updated annually. Data source: Lincolnshire County Council, Performance Services – Schools Performance.

For any enquiries about this publication please contact: schoolperformancedata@lincolnshire.gov.uk