Table 4. Annual Mean Incidence of Patients with Thyroid Cancer Taking Levothyroxine from 2008 to 2012.

	Men		Women		All
	Incidence	Number	Incidence	Number	Incidence	Number
Age, yr
≤4	0	0	0	1	0	1
5-9	0	7	0	14	0	21
10-14	0	26	0.01	101	0.01	127
15-19	0.01	112	0.07	525	0.04	637
20-24	0.04	336	0.25	1,773	0.14	2,109
25-29	0.12	1,099	0.64	5,524	0.37	6,623
30-34	0.24	2,283	1.14	10,442	0.69	12,725
35-39	0.36	3,707	1.54	15,677	0.95	19,384
40-44	0.4	4,194	1.89	19,489	1.15	23,683
45-49	0.42	4,295	2.26	22,931	1.34	27,226
50-54	0.45	4,275	2.47	23,611	1.47	27,886
55-59	0.43	2,914	2.26	15,872	1.36	18,786
60-64	0.39	2,060	1.89	10,641	1.16	12,701
65-69	0.37	1,528	1.44	7,057	0.95	8,585
70-74	0.23	781	0.86	3,829	0.59	4,610
75-79	0.15	315	0.42	1,399	0.32	1,714
80-84	0.08	77	0.17	345	0.14	422
≥85	0.05	22	0.05	73	0.05	95
Total	0.24	28,031	1.15	139,304	0.7	167,335