Table 4.

Assessment of cognitive, affective, and stress-related disorders in clean-up workers exposed to radiation in doses <50 mSv (internal control) vs. those exposed to ≥50 mSv.

Disorder	<50 mSv n = 42	≥50 mSv, n = 156	Pv
Cognitive disorders (all)	19 (45.8%)	80 (52.3%)	Pv = 0.47
Mild cognitive impairment	15 (36.3%)	64 (41.0%)	Pv = 0.53
Dementia	4 (9.5%)	16 (10.3%)	Pv = 0.58
Affective disorders (all)	7 (19.1%)	89 (56.4%)	Pv < 0.001
Mild	2 (4.8%)	41 (26.3%)	Pv = 0.001
Severe	5 (11.9%)	48 (30.8%)	Pv=0.009
Stress-related disorders (all)	17 (40.4%)	98 (62.8%)	Pv = 0.009
Mild	14 (33.3%)	84 (53.9%)	Pv = 0.02
Severe	3 (7.1%)	14 (8.9%)	Pv = 0.49