Table 4. Detection rate of cases diagnosed as malignant or suspicious for malignancy in the first-round, the second-round, and the third-round survey.

Age, yearsa	First round			Second round			Third roundb
	Participantc	Malignantd		Participantc	Malignantd		Participantc	Malignantd
	(n)	(n)	(%)	(n)	(n)	(%)	(n)	(n)	(%)
0–4	40,663	0	0.000	19,436	0	0.000	1,326	0	0.000
5–9	84,156	1	0.001	75,121	2	0.003	61,375	0	0.000
10–14	95,999	21	0.022	89,197	17	0.019	81,666	10	0.012
15–19	70,510	77	0.109	70,560	36	0.051	63,581	18	0.028
20–24	9,137	17	0.186	16,238	16	0.099	10,870	4	0.037
≥25	0	—	—	2	0	0	1,356	2	0.147
Total	300,465	116	0.039	270,554	71	0.026	220,174	34	0.015

All date were as of March 31, 2020 and from the reports in the materials of 16th Subcommittee for TUE program.¹⁷

^aAge at the primary examination.

^bThe result of the third-round survey included the results from the survey at age 25 years for subjects born in the 1992 fiscal year.

^cNumber of participants for the primary examination.

^dNumber and detection rate of cases with nodules cytologically diagnosed as malignant or suspicious for malignancy.