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HiPPO AoNZ Study Hub

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Global Cohort Study: HernIas, Pathway and Planetary Outcomes for Inguinal Hernia Surgery



What is the HiPPO Study?

HiPPO is an international, multi-centre, prospective observational cohort study investigating the management of patients undergoing inguinal hernia repair. The aims are to characterise the global backlog for elective surgery, understand the technique, training and operative variation in hernia repair, and finally to explore environmentally sustainable practices in operating theatres. The study is being delivered by the NIHR Global Health Research Unit on Global Surgery, and will be facilitated in Australia by TASMAN and Aotearoa New Zealand by STRATA.

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Through facilitating the HiPPO Study in Aotearoa New Zealand, we aim to build collaborative research capacity amongst medical students and junior doctors.

Click the link to register your interest: Expression of interest


Who is Involved?

STRATA invites all medical students in their clinical years, junior doctors and consultants to become HiPPO collaborators.

All collaborators will be included as PubMed-citable co-authors on resulting publications. All hospitals with adults undergoing inguinal hernia repair can participate in this study. 


Expressions of interest:

Local leads/ Data collectors

The local lead will be responsible for coordination of local teams, locality approvals and liaising with supervising consultants.


National leads

The national lead are responsible for liaising with the study steering committee and recruiting and supporting hospital leads to lead mini-teams of collaborators to collect patient data. 

The New Zealand national leads are Dr Deborah Wright and Dr Matthew McGuinness.


If you have any further queries please email us at or 


HiPPO Study Documents:

Please see the study-wide HiPPO Study Hub for all study documents, including the study protocol

Click the link: HiPPO Study Hub


Join the AoNZ WhatsApp group bclicking the WhatsApp Icon

Current Enrolled AoNZ Hospitals

Dunedin Hospital
Invercargill Hospital

Tauranga Hospital

Auckland City Hospital

Wellington Hospital

Christchurch Hospital

Whanganui Hospital

Palmerston North Hospital 

Whangarei Hospital 


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