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Published on: May 10, 2016
Incorporating High-Risk Individuals Beyond Smoking History Into Lung Cancer Screening in Hong Kong: A
Herbert Ho-Fung Loong1, Xuanqi Pan2,3, Carlos K H Wong1,4,5,6
1Department of Clinical Oncology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, People's Republic of China.
Lung cancer screening (LCS) using low-dose computed tomography (LDCT) is cost-effective in Hong Kong for high-risk individuals, including non-smokers. This approach can reduce lung cancer mortality and improve population health outcomes.
Area of Science:
- Public Health
- Health Economics
- Oncology
Background:
- Lung cancer (LC) is a leading cause of cancer death in Hong Kong, with a significant proportion of cases occurring in never-smokers.
- Traditional lung cancer screening (LCS) focuses on smoking history, which may not capture the full spectrum of high-risk individuals in diverse populations.
- Low-dose computed tomography (LDCT) has shown potential in reducing LC mortality, but its cost-effectiveness needs evaluation within specific epidemiological contexts.
Purpose of the Study:
- To conduct a cost-effectiveness analysis of LCS using LDCT in Hong Kong.
- To evaluate LCS for both smoking-related and non-smoking-related high-risk individuals.
- To inform public health policy regarding LCS implementation.
Main Methods:
- A decision tree and Markov model were employed to simulate LCS outcomes from a healthcare provider perspective.
- Data from the Dutch-Belgian Lung Cancer Screening Study (for smokers) and the Taiwan Lung Cancer Screening in Never-Smoker Trial (for non-smokers) were adapted.
- Local Hong Kong data on LC survival, costs, and a willingness-to-pay threshold (US$24,302–US$40,202 per QALY) were utilized.
Main Results:
- LCS with LDCT demonstrated increased early detection of LC and reduced LC mortality compared to no screening.
- The incremental cost-effectiveness ratio (ICER) for smoking-history-based high-risk individuals was US$14,122 per QALY.
- The ICER for non-smoking-history-based high-risk individuals was lower, at US$9610 per QALY.
Conclusions:
- LCS with LDCT is a cost-effective strategy in Hong Kong for both smoking-related and non-smoking-related high-risk individuals.
- The findings support expanding LCS to encompass all identified high-risk individuals, beyond just those with a smoking history.
- Implementing population-based LCS can significantly contribute to improving overall population health by reducing lung cancer burden.
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