TABLE 2.

Demographic Factors and Self-Reported Medical History by Atomic Bomb Radiation Dose for Survey Participants

	DS02R1 weighted absorbed colon dose (Gy)
	<0.005		0.005 to <0.1		0.1 to <1.0		≥1.0
	n	%	n	%	n	%	n	%
City
Hiroshima	3,029	52.6	3,355	76.0	1,652	74.2	171	64.3
Nagasaki	2,733	47.4	1,061	24.0	574	25.8	95	35.7
Sex
Men	2,243	38.9	1,796	40.7	830	37.3	108	40.6
Women	3,519	61.1	2,620	59.3	1,396	62.7	158	59.4
Age at the time of the bombings
<10 years	2,873	49.9	2,316	52.4	1,098	49.3	129	48.5
10 to <20 years	2,286	39.7	1,604	36.3	870	39.1	114	42.9
≥20 years	603	10.5	496	11.2	258	11.6	23	8.6
Mean (SD)	10.2	(0.1)	9.9	(0.1)	10.3	(0.2)	10.4	(0.4)
Age at survey
<70 years	1,650	28.6	1,570	35.6	715	32.1	64	24.1
70 to <80 years	2,325	40.4	1,543	34.9	733	32.9	111	41.7
≥80 years	1,787	31.0	1,303	29.5	778	35.0	91	34.2
Mean (SD)	75.4	(0.1)	74.7	(0.1)	75.4	(0.2)	76.0	(0.4)
Adult Health Study membership
Yes	1,031	17.9	243	5.5	794	35.7	242	91.0
No	4,731	82.1	4,173	94.5	1,432	64.3	24	9.0
Medical history
Cancer	865	15.0	677	15.3	411	18.5	75	28.2
Stroke	481	8.3	402	9.1	196	8.8	38	14.3
Heart diseases	1,380	24.0	976	22.1	520	23.4	64	24.1
Chronic hepatitis	434	7.5	287	6.5	156	7.0	22	8.3
Total	5,762	100	4,416	100	2,226	100	266	100