Table 1. Distribution of the study cohort workers by cumulative stomach absorbed dose from external gamma rays.

Cumulative stomach gamma-dose, Gy	Males		Females		Both sexes
	Number	%	Number	%	Number	%
Entire cohort
[0.0–0.2)	8410	50.40	3327	58,48	11737	52,45
[0.2–0.5)	3494	20.94	923	16,22	4417	19,74
[0.5–1.0)	2166	12.98	683	12,01	2849	12,73
[1.0+	2618	15.68	756	13,29	3374	15,08
Total	16688	100.00	5689	100,00	22377	100,00
Mean ± SD	0.48 ± 0.68		0.40 ± 0.59		0.46 ± 0.66
Median (Min–Max)	0.19 (0.0–7.35)		0.13 (0.0–5.63)		0.18 (0.00–7.35)
Stomach cancers
[0.0–0.2)	90	32.14	32	50.79	122	35.57
[0.2–0.5)	69	24.64	14	22.22	83	24.20
[0.5–1.0)	52	18.57	7	11.11	59	17.20
[1.0+	69	24.65	10	15.88	79	23.03
Total	280	100.00	63	100.00	343	100.00
Mean ± SD	0.70 ± 0.84		0.48 ± 0.83		0.66 ± 0.83
Median (Min–Max)	0.38 (0.00–4.96)		0.19 (0.00–4.28)		0.33 (0.00–4.96)