Table 2.

Distribution of TCC and benign diagnoses (ureter, bladder, urethra) by arsenic concentration (µg/L) by sex.

Arsenic Concentration µg/L	Men				Women				Both				All
	TCC		Benign		TCC		Benign		TCC		Benign
	n	%	n	%	n	%	n	%	n	%	n	%	n	%
≤10	211	17.4	126	19.0	27	11.6	80	19.2	238	16.5	206	19.1	444	17.6
10 < 50	278	22.9	101	15.3	41	17.6	89	21.4	319	22.1	190	17.6	509	20.2
50 < 100	177	14.6	91	13.7	27	11.6	54	13.0	204	14.1	145	13.5	349	13.8
100 < 200	219	18.1	154	23.3	59	25.3	90	21.6	278	19.2	244	22.6	522	20.7
200 < 300	207	17.1	95	14.4	44	18.9	48	11.5	251	17.4	143	13.3	394	15.6
300 or more	121	10.0	95	14.4	35	15.0	55	13.2	156	10.8	150	13.9	306	12.1
Total	1213	100.0	662	100.0	233	100.0	416	100.0	1446	100.0	1078	100.0	2524	100.0
X2 (df = 5)	28.2				13.5				23.7				-
tabl	p < 0.001				p < 0.019				p < 0.001				-