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Journal Article

Citation

Boyd M, Kvizhinadze G, Kho A, Wilson G, Wilson N. Inj. Prev. 2019; ePub(ePub): ePub.

Affiliation

Public Health, University of Otago, Wellington, Wellington, New Zealand.

Copyright

(Copyright © 2019, BMJ Publishing Group)

DOI

10.1136/injuryprev-2019-043184

PMID

31221667

Abstract

AIM: To estimate the health gain, health system costs and cost-effectiveness of cataract surgery when expedited as a falls prevention strategy (reducing the waiting time for surgery by 12 months) and as a routine procedure.

METHODS: An established injurious falls model designed for the New Zealand (NZ) population (aged 65+ years) was adapted. Key parameters relating to cataracts were sourced from the literature and the NZ Ministry of Health. A health system perspective with discounting at 3% was used.

RESULTS: Expedited cataract surgery for 1 year of incident cases was found to generate a total 240 quality-adjusted life years (QALYs) (95% uncertainty interval (UI) 161 to 360) at net health system costs of NZ$2.43 million (95% UI 2.02 to 2.82 million) over the remaining lifetimes of the surgery group. This intervention was cost-effective by widely accepted standards with an incremental cost-effectiveness ratio (ICER) of NZ$10 600 (US$7540) (95% UI NZ$6030 to NZ$15 700) per QALY gained. The level of cost-effectiveness did not vary greatly by sex, ethnicity and previous fall history, but was higher for the 65-69 age group compared with the oldest age group of 85-89 years (NZ$7000 vs NZ$14 200 per QALY gained). Comparing cataract surgery with no surgery, the ICER was even more favourable at NZ$4380 (95% UI 2410 to 7210) per QALY. Considering only the benefits for vision improvement and excluding the benefits of falls prevention, it was still favourable at NZ$9870 per QALY.

CONCLUSIONS: Expedited cataract surgery appears very cost-effective. Routine cataract surgery is itself very cost-effective, and its value appears largely driven by the falls prevention benefits.

© Author(s) (or their employer(s)) 2019. No commercial re-use. See rights and permissions. Published by BMJ.


Language: en

Keywords

cataract surgery; cataracts; cost-effectiveness; cost-utility; falls

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