Investigating obesity surgery in Tasmania


Bariatric surgery, also known as obesity or weight-loss surgery, is considered an effective treatment for obesity and obesity-related illness, but it is difficult to access in Australian public hospitals.

Using focus groups and interviews with patients, interviews with health professionals, and a longer-term cohort study, the INVEST project aims:

  • to investigate the characteristics, experiences, treatment pathways and outcomes of Tasmanians who are referred to a surgeon for bariatric surgery, in both the public and private healthcare systems; and
  • to better understand the costs for patients and the health system.

The INVEST project is funded by the National Health and Medical Research Council. It is being conducted in partnership with government policy makers and clinicians to support the development of better treatment services for patients with obesity-related disease.

Can you help us with our research?

We are currently recruiting to our cohort study. This study will look at longer-term outcomes of public and private patients who have been referred to see a surgeon for bariatric surgery. Some participants will go on to have the surgery whereas others may decide not to proceed, or will be placed on a surgery wait list.

You may be able to help us with this research if:

  • You are aged 18 years or older; and
  • You have been referred to see a surgeon for bariatric surgery and have not yet had the surgery.

More information is available on the Information Sheet (PDF 300KB)


Phone: Dr Michelle Kilpatrick, 03 6226 4630

Publications from the study

Campbell JA, Venn A, Neil A, Hensher M, Sharman M, Palmer AJ. Diverse approaches to the health economic evaluation of bariatric surgery: a comprehensive systematic review. Obes Rev. 2016.

Campbell JA, Palmer AJ, Venn A, Sharman M, Otahal P. A Head-to-Head Comparison of the EQ-5D-5L and AQoL-8D Multi-Attribute Utility Instruments in Patients Who Have Previously Undergone Bariatric Surgery. The patient : patient-centered outcomes research. 2016;9:311-322.

Kuzminov A, Palmer AJ, Wilkinson S, Khatsiev B, Venn AJ. Re-operations after Secondary Bariatric Surgery: a Systematic Review. Obes Surg. 2016.

Sharman MJ, Venn AJ, Hensher M, et al. Motivations for Seeking Bariatric Surgery: The Importance of Health Professionals and Social Networks. Bariatric Surgical Practice and Patient Care. 2016.

Sharman MJ, Hensher M, Wilkinson S, Campbell JA, Venn AJ. Review of Publicly-Funded Bariatric Surgery Policy in Australia-Lessons for More Comprehensive Policy Making. Obes Surg. 2015.

Sharman M, Hensher M, Wilkinson S, et al. What are the support experiences and needs of patients who have received bariatric surgery? Health Expectations. 2015.

Sharman M, Hensher M, Wilkinson S, Kuzminov A, Ezzy D, Venn A. Emergency and pre-surgical band deflation in patients with laparoscopic adjustable gastric bands: variations in practice. ANZ J Surg. 2015;85:890.

Research Groups

Related Diseases


Senior Members

Professor Alison Venn


    Professor Andrew Palmer

    Assoc Prof Douglas Ezzy

    Assoc Prof Leigh Blizzard

    Professor Mark Nelson

    Professor Amanda Neil

    Dr Faline Howes

    Professor Tom Marwick

    Assoc Professor Kristy Sanderson

    Mr Brian Stokes

    Dr Danielle Williams

    Melanie Sharman

    Julie Campbell

    Alexandr Kuzminov

    Dr Kim Jose

    Dr Michelle Kilpatrick

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