The Tasmanian Longitudinal Health Study

Get in touch with us on 1800 110 711

The world's largest and longest-running study on respiratory health

What is the TAHS?

The Tasmanian Longitudinal Health Study (TAHS), previously known as the Tasmanian Asthma Study, is the world’s largest and longest-running study on respiratory health. It started in 1968 and was initially designed to examine the prevalence of asthma in primary school children. Since then, the TAHS has evolved to become an internationally collaborated study and is one of the world’s key studies on asthma and other chronic obstructive pulmonary diseases. More than 50 years since the study commenced, the TAHS participants are still supporting and contribute to the advancement in our understanding of respiratory health. Click here to learn more about TAHS. You can also learn more about all the follow-up studies from 1968 up to the latest study in 2016 by clicking here 


Grants Received

Over 50
Researchers & Students

The 45840 TAHS participants now live all over Australia, with some also living abroad.

What is happening next with the TAHS

We are taking the TAHS into another decade!

Another follow-up study for the TAHS has just commenced in 2022. This is the TAHS 7th decade study. We are inviting all the participants who were part of the original 1968 Tasmanian asthma study to partake in this study.

The first phase of the study will be a survey. The second phase will involve attending one of our lung function-testing laboratories, similar to our previous TAHS studies

If you are interested in participating in the survey, please update your contact details with us and choose your preferred survey format (online or postal) via one of the following methods:
1. Contact us at 1800 110 711 or use the contact form
2. Use this link to update your contact information.

Are you a child of a TAHS participant?

Be a part of the future generation of TAHS!

Our research team would like to build on our world-class lung health research by making the TAHS a multi-generational study! We aim to look into whether exposures of the parents, even before the child is conceived, increase the chance of their offspring developing asthma and other lung problems.

If one of your parents is a TAHS participant, please get in touch with us via one of the following methods:
1. Contact us at 1800 110 711 or use the contact form
2. Use this link to provide us your contact information

We will contact you about potential TAHS studies.

TAHS Reunion Events

In mid-2022, the TAHS held community events in Hobart, Launceston, Burnie, and online for our participants to reconnect with the study and with each other. These events were a huge success!

Members of the TAHS team had a wonderful time mingling with participants and hearing their perspectives on the research. Participants said that they appreciated the opportunity to learn more about the study’s history and achievements and ask questions. One participant wrote on our Facebook page: ‘Thank you for an informative afternoon. Love it when you come away with a clearer understanding of TAHS.’

The TAHS community events were even covered by ABC News  and The Advocate.

Our online event, hosted through ZOOM, gave participants who are no longer living in Tasmania the same opportunity to gain a deeper understanding of the research they have been involved with for most of their lives.

Latest TAHS news

Two new lung function trajectories identified by researchers may predict COPD risk
"Researchers have identified six possible FEV1 trajectories, including two novel trajectories, in a recent cohort study published in The Lancet Respiratory Medicine. Three of the trajectories were associated with modifiable early-life exposures and contributed to 75% of COPD burden...."- June 19th, 2018
Read More
Childhood pneumonia and pleurisy lead to smaller lungs: Tasmanian study
"Episodes of childhood pneumonia or pleurisy by age seven are associated with modestly smaller lung volumes in middle age, according to new research. The research, from the Tasmanian Longitudinal Health Study cohort, involved comprehensive measures of lung function in participants at age seven and again at ages 45 and 53" - Nov 6th, 2019
Read More
Sleep apnoea screening at GPs may be missing up to 64 per cent of cases
"CRITERIA allowing general practitioners to refer patients directly to a sleep study may be missing more than half of patients later found to have clinically relevant obstructive sleep apnoea, according to the authors of research published in the Medical Journal of Australia..."- May 27th, 2019
Read More
Are Australia’s roads giving you asthma?
"Australians aged 45-50 who lived less than 200 metres from a major road had a 50 percent higher risk of asthma, wheeze and lower lung function over a five-year period than those who lived more than 200 metres from a major road"- Nov 24th, 2017
Read More
Premature Birth Linked to Lung Disease Later in Life
"New research shows a link between premature birth and obstructive lung disease after age 50, highlighting opportunities for reducing risk factors like smoking in people born preterm" - Feb 20th, 2022
Click Here