Table 3.

Occupational radiation exposure of monitored dental radiation workers in Taiwan from 2013 to 2020.

	Number of monitored dental radiation workers			Related parameters of occupational radiation exposure
	Male	Female	Total	A	B	C	D	E
2013	318	360	678	49	7.23	10.84	0.02	0.22
2014	300	352	652	47	7.21	9.44	0.01	0.20
2015	294	388	682	61	8.94	9.11	0.01	0.15
2016	308	403	711	11	1.55	7.23	0.01	0.66
2017	320	396	716	18	2.51	6.83	0.01	0.38
2018	313	396	709	16	2.26	13.00	0.02	0.81
2019	327	418	745	14	1.88	15.47	0.02	1.11
2020	334	436	770	11	1.43	5.21	0.01	0.47
Total increased number	16	76	92	−38	−5.80	−5.63	–	–
Mean annual increased number	2.29	10.86	13.14	−5.43	−0.83	−0.80	–	–
Total increase rate (%)	5.03	21.11	13.57	−77.55	−80.22	−51.94	–	–

A parameter: the number of the measurably exposed workers.

B parameter: the proportion of the measurably exposed workers to the total monitored workers (%).

C parameter: the annual collective exposure dose (man-Sv).

D parameter: the mean annual effective exposure dose of the total monitored workers (mSv).

E parameter: the mean annual effective exposure dose of the measurably exposed workers (mSv).