Journal
JOURNAL OF ENDOCRINOLOGICAL INVESTIGATION
Volume 43, Issue 11, Pages 1645-1654Publisher
SPRINGER
DOI: 10.1007/s40618-020-01254-0
Keywords
Fine-needle aspiration; Thyroid nodule; Randomized controlled trial; QALYs; Cost-effectiveness analysis
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Funding
- Health and Medical Research Fund, Food and Health Bureau, HKSAR [12132941]
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Objectives A trial-based comparison of the use of resources, costs and health utility outcomes of fine-needle aspiration cytology (FNAC), and watchful observation for incidental small (< 2 cm) thyroid nodules was performed using data from the randomized controlled trial (RCT). Methods Using data from 314 patients, healthcare-related use of resources, costs, health utility, and quality-adjusted life years (QALYs) were estimated at 12 months after first presentation of incidental thyroid nodule(s) on an intention-to-treat basis with adjustment for covariates. Uncertainty about the incremental cost-effectiveness ratio for FNAC versus watchful management at 12 months of follow-up was incorporated using bootstrapping. Multiple imputation methods were used to deal with missing data. Results FNAC management was associated with greater use of healthcare resources and mean direct healthcare costs per patient (US$542.47 vs US$411.55). Lower mean 12-month QALYs per patient in FNAC was observed in comparison to watchful observation (0.752 versus 0.758). The probability that FNAC management was cost-effective compared with watchful management at a willingness-to-pay threshold of US50,000 per QALY gained was 26.5%. Conclusion Based on 12-month data from RCT, watchful observation appeared cost-saving compared to FNAC in patients with incidental thyroid nodules that have a low-suspicion sonographic pattern and measure between 1.0 and 2.0 cm from healthcare provider perspective. ClinicalTrials.gov Identifier NCT02398721.
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