Radiation Exposure to Staff in Intensive Care Unit with Portable CT Scanner

Table 2

Radiation dose to all of the roles.

Occupation	Radiation dose during 3 months (mSv)	Estimated annual dose (mSv)	value
Nurse (18)	0.22 ± 0.01	0.88 ± 0.05	< 0.001^#
Doctor (22)	0.24 ± 0.04	0.99 ± 0.16
Resident (14)	0.26 ± 0.04	1.04 ± 0.18	< 0.001^##
Attending (8)	0.22 ± 0.02	0.90 ± 0.10	= 0.012^†
Total (40)	0.23 ± 0.03	0.94 ± 0.14	= 0.002^††

: comparison of estimated annual doses.
: the estimated annual dose to resident is higher than the limit ICRP recommended for the public.
#: -test between nurse and doctor.
##: post hoc test between resident and nurse.
†: post hoc test between attending and resident.
††: ANOVA test among nurse, resident, and attending.