Retrospective Cohort Study
Copyright ©The Author(s) 2022. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Hepatol. Aug 27, 2022; 14(8): 1576-1583
Published online Aug 27, 2022. doi: 10.4254/wjh.v14.i8.1576
Missed opportunities for hepatitis C treatment at a tertiary care hospital in South Australia
Sreecanth Sibhi Raja, Suzanne Edwards, Jeffrey Stewart, Dep Huynh
Sreecanth Sibhi Raja, Jeffrey Stewart, Dep Huynh, Department of Gastroenterology, The Queen Elizabeth Hospital, Woodville 5011, South Australia, Australia
Suzanne Edwards, Department of Statistician, School of Public Health, University of Adelaide, Adelaide 5000, South Australia, Australia
Author contributions: Raja SS contributed to study conception and design, also contributed to data collection and analysis as well as drafting and revision of the manuscript; Huyn D contributed to study design, supervision, data analysis and manuscript preparation; Stewart J contributed to data collection and analysis; Edwards S performed statistical analysis.
Institutional review board statement: This retrospective cohort study was completed in accordance with the guidelines set by the South Australian Health Research Governance Policy Directive.
Informed consent statement: Patients were not required to give informed consent to the study because the analysis used anonymous de-identified data.
Conflict-of-interest statement: All the authors report no relevant conflicts of interest for this article.
Data sharing statement: Technical appendix, statistical code, and dataset available from the corresponding author at sreecanth.raja@sa.gov.au. Individual consent was not obtained but the presented data is de-identified without risk of identification.
STROBE statement: The authors have read the STROBE Statement—checklist of items, and the manuscript was prepared and revised according to the STROBE Statement—checklist of items.
Open-Access: This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: https://creativecommons.org/Licenses/by-nc/4.0/
Corresponding author: Sreecanth Sibhi Raja, MBBS, Research Fellow, Department of Gastroenterology, The Queen Elizabeth Hospital, 28 Woodville Road, Woodville 5011, South Australia, Australia. sreecanth.raja@sa.gov.au
Received: August 1, 2021
Peer-review started: August 1, 2021
First decision: September 29, 2021
Revised: November 1, 2021
Accepted: July 11, 2022
Article in press: July 11, 2022
Published online: August 27, 2022
Abstract
BACKGROUND

Hepatitis C is a global epidemic and an estimated 230 000 Australians were living with chronic hepatitis C in 2016. Through effective public health policy and state commitment, Australia has utilised the advent of direct acting antiviral (DAA) therapy to transform the therapeutic landscape for hepatitis C virus (HCV). However, treatment rates are falling and novel public health approaches are required to maintain momentum for HCV elimination. Contemporary discourse in cascades of care have focused on expanding testing capabilities but less attention has been given to linking previously diagnosed patients back to care. Our simple and focused study rests on the premise that hospital admissions are an excellent opportunity to identify and refer previously diagnosed patients for HCV treatment.

AIM

To assess whether inpatients with HCV are appropriately referred on for treatment.

METHODS

We conducted a retrospective single centre cohort study that examined all patients with HCV presenting to The Queen Elizabeth Hospital (QEH) inpatient service between January 1 and December 31, 2017. QEH is a tertiary care hospital in South Australia. The main inclusion criteria were patients with active HCV infection who were eligible for DAA therapy. Our study cohort was identified using a comprehensive list of diagnosis based on international classification of diseases-10 AM codes for chronic viral hepatitis. Patients were excluded from the analysis if they had previously received DAA therapy or spontaneously cleared HCV. Patients presenting with decompensated liver cirrhosis or other systemic medical conditions conferring poor short-term prognosis were also excluded from the analysis. The primary outcome of our study was referral of patients for HCV treatment. Secondary outcomes included assessment of factors predicting treatment referral.

RESULTS

There were 309 inpatients identified with hepatitis C as a principal or additional diagnosis between January 1 and December 31, 2017. Of these patients, 148 had active HCV infection without prior treatment or spontaneous clearance. Overall, 131 patients were deemed eligible for DAA treatment and included in the main analysis. Mean patient age was 47.75 ± 1.08 years, and 69% of the cohort were male and 13% identified as Aboriginal or Torres Strait Islander. Liver cirrhosis was a complication of hepatitis C in 7% of the study cohort. Only 10 patients were newly diagnosed with HCV infection during the study period with the remainder having been diagnosed prior to the study.

CONCLUSION

Under 25% of hepatitis C patients presenting to an Australian tertiary hospital were appropriately referred for treatment. Advanced age, cirrhosis and admission under medical specialties were predictors of treatment referral.

Keywords: Hepatitis C, Viral hepatitis, Treatment cascade, Hepatology, Public health, Missed opportunities

Core tip: Hepatitis C virus (HCV) treatment in Australia has undergone a major paradigm shift since the advent of direct acting anti-viral (DAA) therapy. Uptake of DAA therapy for HCV is falling despite universalisation of access through pharmaceutical benefit scheme listing. In our study, 26% of chronic hepatitis C patients presenting to a tertiary hospital were referred for treatment. Hospital admissions constitute an excellent opportunity to identify and treat patients with chronic hepatitis C. Extrapolating this study, both nationally and internationally, would serve to supplement treatment numbers in the goal of HCV eradication.