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Cost-effectiveness of sex-neutral HPV-vaccination in Sweden, accounting for herd-immunity and sexual behaviour

Wolff, Ellen ; Elfström, K. Miriam ; Haugen Cange, Hedda ; Larsson, Sofie ; Englund, Helene ; Sparén, Pär and Roth, Adam LU (2018) In Vaccine 36(34). p.5160-5165
Abstract

Introduction: The aim was to assess cost-effectiveness of expanding the Swedish HPV-vaccination program to include preadolescent boys, by comparing health-effects and costs of HPV-related disease, with a sex-neutral vaccination program versus only vaccinating girls. Methods: We used a dynamic compartmental model to simulate the burden of HPV16/18-related disease in Sweden, accounting for indirect effects of vaccination through herd-immunity. The model accounted for sexual behaviour, such as age preferences and men who have sex with men. The main outcome was number of individuals with HPV-related cancers (cervical, genital, anal and oropharyngeal cancer) and cervical intraepithelial neoplasia (CIN). Costs included in the analysis were... (More)

Introduction: The aim was to assess cost-effectiveness of expanding the Swedish HPV-vaccination program to include preadolescent boys, by comparing health-effects and costs of HPV-related disease, with a sex-neutral vaccination program versus only vaccinating girls. Methods: We used a dynamic compartmental model to simulate the burden of HPV16/18-related disease in Sweden, accounting for indirect effects of vaccination through herd-immunity. The model accounted for sexual behaviour, such as age preferences and men who have sex with men. The main outcome was number of individuals with HPV-related cancers (cervical, genital, anal and oropharyngeal cancer) and cervical intraepithelial neoplasia (CIN). Costs included in the analysis were those incurred when treating HPV-related cancer and CIN, production losses during sick-leave, and acquisition and administration of vaccine. Health effects were measured as quality-adjusted life years (QALY). The time horizon was set to 100 years, and both effects and costs were discounted by 3% annually. Health effects and costs were accumulated over the time horizon and used to create an incremental cost-effectiveness ratio. Results: A sex-neutral vaccination program would reduce HPV-related cancer and CIN, both due to direct effects among vaccinated as well as through herd-immunity, further decreasing HPV-related cancer burden annually by around 60 cases among men and women respectively in steady-state. The cost per gained QALY was estimated to 40,000 euro. Applying the procurement price of 2017, sex-neutral vaccination was dominant. Conclusion: Introducing a sex-neutral HPV-vaccination program would be good value for money also in Sweden where there this 80% coverage in the current HPV-vaccination program for preadolescent girls. The cost-effectiveness of a sex-neutral program is highly dependent on the price of the vaccine, the lower the price the more favourable it is to also vaccinate boys.

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author
; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Cost effectiveness, Dynamic modelling, Health economic evaluation, HPV, Human papillomavirus, Vaccination
in
Vaccine
volume
36
issue
34
pages
6 pages
publisher
Elsevier
external identifiers
  • scopus:85049798714
  • pmid:30017146
ISSN
0264-410X
DOI
10.1016/j.vaccine.2018.07.018
language
English
LU publication?
yes
id
04e4d447-5561-45a4-8bd5-718d9225ead9
date added to LUP
2018-09-26 15:35:47
date last changed
2024-04-15 13:16:36
@article{04e4d447-5561-45a4-8bd5-718d9225ead9,
  abstract     = {{<p>Introduction: The aim was to assess cost-effectiveness of expanding the Swedish HPV-vaccination program to include preadolescent boys, by comparing health-effects and costs of HPV-related disease, with a sex-neutral vaccination program versus only vaccinating girls. Methods: We used a dynamic compartmental model to simulate the burden of HPV16/18-related disease in Sweden, accounting for indirect effects of vaccination through herd-immunity. The model accounted for sexual behaviour, such as age preferences and men who have sex with men. The main outcome was number of individuals with HPV-related cancers (cervical, genital, anal and oropharyngeal cancer) and cervical intraepithelial neoplasia (CIN). Costs included in the analysis were those incurred when treating HPV-related cancer and CIN, production losses during sick-leave, and acquisition and administration of vaccine. Health effects were measured as quality-adjusted life years (QALY). The time horizon was set to 100 years, and both effects and costs were discounted by 3% annually. Health effects and costs were accumulated over the time horizon and used to create an incremental cost-effectiveness ratio. Results: A sex-neutral vaccination program would reduce HPV-related cancer and CIN, both due to direct effects among vaccinated as well as through herd-immunity, further decreasing HPV-related cancer burden annually by around 60 cases among men and women respectively in steady-state. The cost per gained QALY was estimated to 40,000 euro. Applying the procurement price of 2017, sex-neutral vaccination was dominant. Conclusion: Introducing a sex-neutral HPV-vaccination program would be good value for money also in Sweden where there this 80% coverage in the current HPV-vaccination program for preadolescent girls. The cost-effectiveness of a sex-neutral program is highly dependent on the price of the vaccine, the lower the price the more favourable it is to also vaccinate boys.</p>}},
  author       = {{Wolff, Ellen and Elfström, K. Miriam and Haugen Cange, Hedda and Larsson, Sofie and Englund, Helene and Sparén, Pär and Roth, Adam}},
  issn         = {{0264-410X}},
  keywords     = {{Cost effectiveness; Dynamic modelling; Health economic evaluation; HPV; Human papillomavirus; Vaccination}},
  language     = {{eng}},
  month        = {{08}},
  number       = {{34}},
  pages        = {{5160--5165}},
  publisher    = {{Elsevier}},
  series       = {{Vaccine}},
  title        = {{Cost-effectiveness of sex-neutral HPV-vaccination in Sweden, accounting for herd-immunity and sexual behaviour}},
  url          = {{http://dx.doi.org/10.1016/j.vaccine.2018.07.018}},
  doi          = {{10.1016/j.vaccine.2018.07.018}},
  volume       = {{36}},
  year         = {{2018}},
}