| Sweep status | Completed |
|---|---|
| Dates | January 2018 to March 2019 |
| Age | 17 |
| Achieved sample | 10,757 (cohort members); 10,625 (families) |
| Respondents | Cohort members, parents |
| Fieldwork agency | Ipsos MORI |
| Survey mode | Face-to-face and web |
| Data access | |
| Description |
Here you can read our initial findings from the Age 17 Sweep. These examine a range of issues, including mental health, obesity, substance use and antisocial behaviour.
This introductory webinar looked at what was new in the Age 17 survey and answered questions from data users.
This guide describes the data linkage of health administrative records from the Hospital Episode Statistics (HES) to survey data for cohort members in the Millennium Cohort Study (MCS). User guide updated: 2025.
Date published: 07/12/2022
PDF: 337,01 KB
A user guide which provides guidance and recommendations for handling mode effects in CLS’ cohort studies through applied examples, using data from the National Child Development Study (NCDS) and Next Steps.
Date published: 26/11/2024
PDF: 2,3 MB
This user guide describes the data linkage of health administrative records from the Welsh Health Data to survey data for cohort members in the Millennium Cohort Study (MCS).
The Welsh Health Data were provided by SAIL Databank, which contains information about all hospital admissions in Wales.
Date published: 18/11/2024
PDF: 334,87 KB
User guide for the Age 17 Sweep of the Millennium Cohort Study (MCS7).
Date published: 08/12/2020
PDF: 1,07 MB
This user guide describes the linkage of medical records, child health reviews and prescription and immunisation records in Scotland (henceforth “Scottish Medical Records”) to cohort members’ data in the Millennium Cohort Study (MCS).
Date published: 15/02/2021
PDF: 313,94 KB
This user guide accompanies the datasets linking education data to the records of MCS participants based in England.
Version 3 (November 2024)
Date published: 25/11/2024
PDF: 990,4 KB
This guide provides information about the mcs_longitudinal_family_file which is an important dataset of the Millennium Cohort Study (MCS).
Date published: 02/09/2020
PDF: 166,27 KB
The Data Handling guide explains the data structures of MCS and provides solutions with different data handling strategies.
Date published: 02/09/2020
PDF: 1,14 MB
This user guide aims to describe and illustrate a straightforward approach to missing data handling, while detailing some more general considerations around missing data along the way.
Date published: 03/06/2024
PDF: 1000,62 KB
Young person online (CAWI) questionnaire for MCS 7.
Date published: 04/02/2020
PDF: 938,1 KB
Young person self-completion questionnaire for MCS 7.
Date published: 30/01/2020
PDF: 913,59 KB
Young person interview for MCS 7.
Date published: 30/01/2020
PDF: 1,17 MB
Paper representation of the parent online questionnaire (CAWI) for MCS 7.
Date published: 30/01/2020
PDF: 1,1 MB
No material of this type is available.
No material of this type is available.
This report focuses on mental ill-health at age 17, using data collected from participants in the Millennium Cohort Study (MCS) in 2018-19.
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Disadvantaged children born at the start of the 21st century weighed up to 5kg more in their childhood and early teenage years than those from more privileged backgrounds, a new study has found.
This project examines young people’s mental health trajectories today in the context of previous generations, using data from all four of our cohort studies.
Centre for Longitudinal Studies
UCL Social Research Institute
20 Bedford Way
London WC1H 0AL
Email: clsdata@ucl.ac.uk
