The Tasmanian Longitudinal Health Study

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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 

45840 Participants

41 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 currently planning another follow-up study to be commenced in the next few years. 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. To help us reach you better, please contact us if you would like to update your new contact information or if there are any questions related to the study.

Should you agree to participate in the study, we are inviting you to do a survey questionnaire on your general and lung health. If you are interested, you can choose to have it sent to your personal email, or to your residential address by clicking this link. Make sure to update your contact details as well!

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
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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
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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
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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
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