Life as an evacuee after the Fukushima Daiichi nuclear power plant accident is a cause of polycythemia: the Fukushima Health Management Survey

Table 2 Changes in RBC, Hb, and Ht according to evacuation status

Sex	Evacuation	N	RBC (average) (x 10⁴/μL)			∆	p	Hb (average) (g/dL)			∆	p	Ht (average) (%)			∆	p
Sex	Evacuation	N	Before		After	∆	p	Before		After	∆	p	Before		After	∆	p
Men	(-)	1349	463.1		461.3	-1.8	0.02	14.46		14.57	0.10	<0.0001	43.57		43.45	-0.12	0.11
	(+)	3278	472.7		479.2	6.5	<0.0001	14.77		15.05	0.28	<0.0001	44.34		44.74	0.40	<0.0001
				p*		<0.0001			p*		<0.0001			p*		<0.0001
Women	(-)	1923	434.5		432.2	-2.3	<0.0001	13.04		13.15	0.11	<0.0001	40.00		39.95	-0.05	0.31
	(+)	4168	439.6		443.1	3.5	<0.0001	13.18		13.40	0.22	<0.0001	40.42		40.74	0.33	<0.0001
				p*		<0.0001			p*		<0.0001			p*		<0.0001

*Age—adjusted p value for comparing changes in the evacuee group to changes in the non-evacuee group before and after the earthquake.
RBC, red blood cell count: Hb, hemoglobin; Ht. hematocrit.

ISSN: 1471-2458