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FRIDAY, May 24, 2019 (HealthDay News) — From 1973 to 2013, there was an increase in the incidence rates of pediatric thyroid cancer, with marked increases from 2006 to 2013, according to a study published online May 23 in JAMA Otolaryngology-Head & Neck Surgery<\/i>.<\/p>\n
Z. Jason Qian, M.D., from the Stanford University School of Medicine in California, and colleagues analyzed trends in pediatric thyroid cancer incidence for 1,806 patients aged younger than 20 years.<\/p>\n
The researchers found that from 1973 to 2013, there was an increase in the overall incidence rates of thyroid cancer, from 0.48 to 1.14 per 100,000 person-years. The incidence rates increased gradually from 1973 to 2006 (annual percent change [APC], 1.11 percent) and then increased sharply from 2006 to 2013 (APC, 9.56 percent). From 1983 to 2006, there was a gradual increase in the incidence rates of large tumors (>20 mm; APC, 2.23 percent), followed by a marked increase from 2006 to 2013 (APC, 8.84 percent). These rates did not differ significantly from those of small tumors (1 to 20 mm). From 1973 to 2006, there was a gradual increase in the incidence rates of regionally extended thyroid cancer (APC, 1.44 percent), followed by a marked increase from 2006 to 2013 (APC, 11.16 percent).<\/p>\n
“The similar marked increases in the incidence rates of large tumors and advanced-stage disease suggest a true increase in the occurrence of pediatric thyroid cancer,” the authors write.<\/p>\n
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