Racial differences in the anatomical distribution of colorectal cancer: a study of differences between American and Chinese patients

Table 3 Anatomic subsite distribution of colorectal cancer by race and time

Time		Proximal			Distal			Total
		Man	Woman	Ratio	Man	Woman	Ratio	Man	Woman	Ratio
1990-1995	White	51	43	1.19	106	72	1.47	157	115	1.37
	Yellow	55	49	1.12	163b	128a	1.27	218b	177	1.23
1996-2000	White	91	56	1.63	149	96	1.55	240	152	1.58
	Yellow	54c	54a	1.00	177	136	1.30	231b	190	1.22
Total	White	142	99	1.43	255	168	1.52	397	267	1.49
	Yellow	109c	103a	1.06	340c	264a	1.29	449	367	1.22

^aP < 0.05,

^bP < 0.01,

^cP < 0.001.