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. 2022 Apr;78(2):213-220.
doi: 10.1016/j.mjafi.2021.06.010. Epub 2021 Aug 13.

Health technology assessment of varicella vaccine in the Armed Forces

Seema Patrikar  1 , V K Bhatti  2 , Vani Suryam  3 , A Kotwal  4 , D R Basannar  5 , A Khera  6 , Surekha Kashyap  7 , Ashutosh Sharma  8
Affiliations

Health technology assessment of varicella vaccine in the Armed Forces

Seema Patrikar et al. Med J Armed Forces India. 2022 Apr.

Abstract

Background: The Indian Armed Forces, on entry, vaccinates all cadets and recruits with varicella vaccine for the prevention of varicella. This health technology assessment (HTA) report puts forth evidence for HTA of varicella vaccination in the Armed Forces in various domains namely clinical, societal, ethical, economic, and legal.

Methods: The policy question under each domain has been developed according to best-practice methods for HTA. The costs included were hospitalization cost due to varicella infection; training lost cost; the varicella vaccine cost; cost of the side effects of vaccine; and the outbreak investigation cost. The incremental cost-effectiveness ratio (ICER) for varicella cases averted and man-days saved, and quality-adjusted life years (QALYs) gained due to varicella vaccination strategy were calculated.

Results: Evidence suggests a reduction of 81% in hospitalization rates with 19392 man-days saved per 1 lakh population due to varicella vaccination strategy. The ICER for varicella cases averted is estimated to be Rs 56732/- per case averted and Rs 5687/- per man-day saved. QALYs gained due to two-dose varicella vaccination strategy is estimated to be 1152 per 1 lakh population with cost per QALY gained Rs 95735/-.

Conclusion: The study showed a large reduction in hospitalizations and consequently man-days lost after the introduction of the vaccination strategy. The QALYs was another aspect of importance brought out by this study. Thus, a two-dose vaccination strategy for varicella-zoster virus (VZV) for the Armed Forces trainees is a cost-effective policy.

Keywords: Chickenpox; Cost effectiveness; Health technology assessment; Varicella.

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Conflict of interest statement

The authors have none to declare.

Figures

Fig. 1
Fig. 1
Number of cases and man-days lost due to varicella in Armed Forces.
Fig. 2
Fig. 2
Cost of varicella vaccination in the Armed Forces.
See this image and copyright information in PMC

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