One analyzed the period between 2003 and 2017 ( Li et al ., 2022 ), and showed a trend of decreasing PTC incidence between 2015 and 2017.
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Trends in the incidence of thyroid cancer among US persons from 2000 to 2019.
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This study found a decreasing trend in the incidence of thyroid cancer from 2014 to 2019 in the US with significant differences among age, sex, race and ethnicity, geographic region, SES, and tumor subtype.
We observed an increasing trend in the overall incidence of thyroid cancer between 2000 and 2013, whereas trends in the incidence of thyroid cancer have decreased significantly from 2014 to 2019, possibly owing to the promotion of awareness of healthy lifestyles and changes in environmental factors because thyroid cancer is often associated with obesity and environmental exposure ( Enewold et al ., 2009 ).