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J Viral Hepat. 2016 Sep;23(9):697-707. doi: 10.1111/jvh.12535. Epub 2016 Mar 23.

Access to therapy and therapy outcomes in the Swiss Hepatitis C Cohort Study: a person-centred approach.

Author information

1
Institute of Social and Preventive Medicine, Bern, Switzerland.
2
Checkpoint Zürich, Zürich, Switzerland.
3
Divisions of Gastroenterology and Hepatology and of Clinical Pathology, University Hospitals, Geneva, Switzerland.
4
University Clinic of Visceral Surgery and Medicine, Inselspital, Bern, Switzerland.
5
Swiss Hepato-Pancreato-Biliary Center and Department of Gastroenterology and Hepatology, University Hospital, Zürich, Switzerland.
6
Division of Gastroenterology and Hepatology, University Hospital, Lausanne, Switzerland.
7
Epatocentro Ticino Foundation, Lugano, Switzerland.

Abstract

Socio-demographic and behavioural characteristics are associated with delayed diagnosis and disease progression in HCV-infected persons. However, many analyses focused on single variables rather than groups defined by several variables. We used latent class analysis to study all 4488 persons enrolled in the Swiss Hepatitis C Cohort Study. Groups were identified using predefined variables at enrolment. The number of groups was selected using the Bayesian information criterion. Mortality, loss to follow-up, cirrhosis, treatment status and response to antivirals were analysed using Laplace and logistic regressions. We identified five groups and named them according to their characteristics: persons who inject drugs, male drinkers, Swiss employees, foreign employees and retirees. Two groups did not conform to common assumptions about persons with chronic hepatitis C and were already in an advanced stage of the disease at enrolment: 'male drinkers' and 'retirees' had a high proportion of cirrhosis at enrolment (15% and 16% vs <10.3%), and the shortest time to death (adjusted median time 8.7 years and 8.8 years vs >9.0). 'Male drinkers' also had high substance use, but they were well educated and were likely to be employed. This analysis may help identifying high-risk groups which may benefit from targeted interventions.

KEYWORDS:

Switzerland; alcohol; hepatitis C; latent class analysis; persons who inject drugs; socio-behaviour

PMID:
27006320
DOI:
10.1111/jvh.12535
[Indexed for MEDLINE]

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