. Author manuscript; available in PMC: 2021 Jan 1.

Published in final edited form as: Health Phys. 2020 Jan;118(1):18–35. doi: 10.1097/HP.0000000000001120

Table 10.

Thyroid doses from different exposure pathways reconstructed for study subjects of case-control study.

Parameter	Thyroid dose^a (mGy) due to
Parameter	External irradiation	Inhalation of ¹³¹I during the mission	Inhalation of short-lived radionuclides during the mission	Intake of ¹³¹I during residence	Total
N	607	200	198	587	607
Arithmetic mean	140	44	11	42	199
Median	20	12	1.6	7.3	47
Range	0.015 – 3,630	~0 – 1,680	~0 – 377	0.001 – 3,430	0.15 – 9,020

Arithmetic mean, median and range of thyroid doses are given for N study subjects who were exposed to the given exposure pathway. Therefore, arithmetic mean of total dose does not equal to the sum of arithmetic means of components of the dose.