Whitney Sutton1, Philip K Crepeau1, Joseph K Canner1, Shkala Karzai1, Dorry L Segev2, Aarti Mathur3. 1. Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA. 2. Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA. 3. Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA. Electronic address: amathu10@jhmi.edu.
Abstract
BACKGROUND: The impact of the 2015 ATA guidelines on treatment for differentiated thyroid cancer (DTC) in older adults is unclear. METHODS: 60,567 adults (age≥18) with low-risk DTC diagnosed between 2010 and 2018 were identified using SEER-21. Annual rates of total thyroidectomy (TT), hemithyroidectomy (HT), and active surveillance (AS) were analyzed using interrupted time series stratified by age: younger adults (18-64), older adults (65-79), and the super-elderly (≥80). RESULTS: After 2015, annual rates of TT decreased by 2.6% and 1.9% in younger and older adults (p < 0.001), but increased by 4.6% in the super-elderly (p = 0.0126). Annual rates of HT increased by 2.6% and 1.7% in younger and older adults (p < 0.001), but decreased by 3.8% in the super-elderly (p = 0.0029). Older adults and the super-elderly were more likely than younger adults to undergo HT (aOR = 1.1, 95% CI: 1.03-1.2, p = 0.002 and aOR = 1.5, 95% CI: 1.3-1.7, p < 0.001) and AS (aOR = 1.5, 95% CI: 1.4-1.7, p < 0.001 and aOR = 6.5, 95% CI: 5.4-7.7, p < 0.001) when compared to TT following 2015. CONCLUSIONS: Treatment of DTC continues to vary significantly among age groups.
BACKGROUND: The impact of the 2015 ATA guidelines on treatment for differentiated thyroid cancer (DTC) in older adults is unclear. METHODS: 60,567 adults (age≥18) with low-risk DTC diagnosed between 2010 and 2018 were identified using SEER-21. Annual rates of total thyroidectomy (TT), hemithyroidectomy (HT), and active surveillance (AS) were analyzed using interrupted time series stratified by age: younger adults (18-64), older adults (65-79), and the super-elderly (≥80). RESULTS: After 2015, annual rates of TT decreased by 2.6% and 1.9% in younger and older adults (p < 0.001), but increased by 4.6% in the super-elderly (p = 0.0126). Annual rates of HT increased by 2.6% and 1.7% in younger and older adults (p < 0.001), but decreased by 3.8% in the super-elderly (p = 0.0029). Older adults and the super-elderly were more likely than younger adults to undergo HT (aOR = 1.1, 95% CI: 1.03-1.2, p = 0.002 and aOR = 1.5, 95% CI: 1.3-1.7, p < 0.001) and AS (aOR = 1.5, 95% CI: 1.4-1.7, p < 0.001 and aOR = 6.5, 95% CI: 5.4-7.7, p < 0.001) when compared to TT following 2015. CONCLUSIONS: Treatment of DTC continues to vary significantly among age groups.
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