National Study of Health and Relationships (Natsal) 2023 – Panel

The National Study of Health and Relationships is an important study helping those working in healthcare to build a picture of life in Britain.

About the study

The National Study of Health and Relationships (Natsal) is an important study that helps those working in health care to build up a picture of life in Britain and how it’s changing. It allows them to make better decisions about public health policy, practice and research.

Natsal has taken place every 10 years since 1990 and is one of the largest studies of its kind in the world. So far, over 45,000 people have taken part in Natsal.

The study is conducted by NatCen Social Research (NatCen), University College London (UCL), the London School of Hygiene and Tropical Medicine (LSHTM) and the University of Glasgow.

It is funded by the Wellcome Trust, the Economic and Social Research Council (ESRC) and the National Institute for Health Research (NIHR).

The study has been reviewed by an independent group of people called a Research Ethics Committee, to protect your safety, rights, wellbeing and dignity. This study has been given ethical approval by the East Midlands-Leicester South Research Ethics Committee (Reference no no.20/EM/0025).

Why take part? 

A token of our appreciation

As a token of appreciation for taking part in the study all participants are offered a £20 gift card. Additionally, a £10 gift card will be given to everyone who provides a urine sample or vaginal swab samples.

How Natsal has made a difference

The results from Natsal are used by doctors, policy makers and scientists. The first Natsal survey, in 1990, helped us to understand the spread of HIV in Britain and how best to stop it spreading further. More recently, the findings have helped plan health services like the National Chlamydia Screening programme and the HPV vaccination programme. The results are also used in health education programmes such as through teaching sex and relationship education in schools.

A little time to make a big difference

It’s easy to say no to our interviewers, but we hope you don’t. We’re not asking for money, just that you spare a little time to share your thoughts and opinions. We know your time is precious, but our work really does make a difference. We help government and charities to make the right decisions about the big issues.

What's involved?

One of our telephone interviewers will be in touch in the next week or so. They will explain more about the study and ask if you would like to take part in a telephone interview. Please look out for a phone call from us (location: Brentwood, area code: 01277).

To take part we need to speak to you over the phone. If we don’t have a phone number for you and you would like to arrange an appointment or find out more please contact us at or call Freephone 0800 652 4569.

Please refer to your advance letter and/or email for more information.

The interview

Taking part involves an interviewer asking you about your health and relationships. This will be by telephone, at a time convenient to you and take around an hour. Some questions will be asked over the telephone. The interviewer will ask you to complete the more personal questions yourself by directing you to questions online. You can answer as many or as few questions as you like.

We will ask you about a range of topics including relationships, experiences and attitudes towards topics relating to sex. And don’t worry – you don’t have to answer any questions you don’t want to, you can just skip on to the next one.

No need to prepare

There’s no need to prepare for the interview. You don’t need any special knowledge, we just want to hear about your daily life and what you think.

Our pledge to you

We respect your wishes

Taking part is voluntary and you do not have to answer any questions you don’t want to. Just let your interviewer know and they will move on to the next question.

We answer your questions

Your interviewer will be happy to answer any questions you have about the study which aren’t covered here.

We guard your privacy

We will treat the information you give us in the strictest confidence under the UK General Data Protection Regulation (UK GDPR). The results collected are used for research purposes only. You will never receive any junk mail as a result of speaking to us. We never pass on your details to other organisations for commercial purposes.

Why have I been chosen? 

It is important that our surveys reflect life in Britain today, so we have invited people from the NatCen Opinion Panel, a representative sample of people from across Britain, to take part. The NatCen Panel includes thousands of people from across the UK who share their experiences and opinions on a variety of important topics. You have been invited to take part in Natsal as you previously took part in the British Social Attitudes survey and agreed to be contacted about research in the future, providing your contact details.

For further information about the NatCen Opinion Panel visit:

What we've found out? 

The Natsal surveys are among the largest surveys of sexual behaviour in the world and have provided evidence for policy makers and researchers for over 25 years.

To find out more about what the surveys have found please click this link for a video.

Additionally, you can visit the website link below which has further information about Natsal and its findings.

Contact us

We hope this webpage answers the questions you may have and that it shows the importance of the study.

You can contact NatCen by calling on freephone 0800 652 4569 or emailing

Study information leaflet for participants

Click here for the study information leaflet 

Urine sample information leaflet

Click here for the urine sample information leaflet

Vaginal sample leaflet

Click here for the vaginal sample leaflet


Find your showcards for the interview here.

Data linkage information leaflet

Click here to view the data linkage information leaflet

Data linkage flow chart 

Find the data linkage flow chart here.

Helplines leaflet 

This information sheet provides you with some telephone numbers and services which you may find useful.

Click here to view the helplines leaflet

Biological sample instructions 

Find the urine and vaginal sample instructions here.

Privacy notice 

In this privacy notice, we explain the legal basis for data processing, who will have access to your personal data, how your data will be used, stored and deleted, and who you can contact with a query or a complaint.

Click here to read more.