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Table 2 Colorectal cancer, hemorrhoids and intestinal mucosa ulcer or erosion in the two groups

From: The clinical features of chronic intestinal schistosomiasis-related intestinal lesions

  Patients with schistosomiasis (N = 248) Patients without schistosomiasis (N = 992) p Valuea
Gender Male/Female 183/65/65 732/260  
Age 60.5 ± 12.2 57.8 ± 11.6 0.164
Colorectal cancer 19 (7.7%) 57 (5.7%) 0.261
Age 69.2 ± 13.4 67.5 ± 9.7 0.016
Male/female 10 (52.6%)/9 (47.4%) 43 (75.4%)/14 (24.6%) 0.832/0.017
Site
 Colon 12 (63.2%) 26 (45.6%) 0.185
 Rectum 6 (31.6%) 26 (45.6%) 0.283
 Colon and rectum 1 (5.3%) 5 (8.8%) 1.000
 Left colon 12 (63.2%) 48 (84.2%) 1.000
 Right colon 7 (36.8%) 8 (14.0%) 0.031
 Entire colon 0 (0.0%) 1 (1.8%) /
Scattered ulcer/erosion 22 (8.9%) 71 (7.2%) 0.359
Age 57.5 ± 13.0 57.5 ± 12.7 0.709
Male/female 11 (6.0%)/11 (16.9%) 44 (6.0%)/27 (10.4%) 1.000/0.142
Site
 Ileocecal junction 7 (32.4%) 20 (28.2%) 0.835
 Ascending colon 2 (8.7%) 6 (8.5%) 1.000
 Transverse colon 0 (0.0%) 7 (9.9%) 0.188
 Descending colon 1 (4.3%) 17 (23.9%) 0.063
 Sigmoid colon 6 (26.1%) 20 (28.2%) 0.846
 Rectum 11 (47.8%) 45 (63.4%) 0.186
Ulcerative colitis 2 (0.8%) 6 (0.6%) 0.664
Hemorrhoids 149 (60.1%) 519 (52.3%) 0.028
Age 60.9 ± 11.5 57.7 ± 11.3 0.527
Male/female 112 (61.2%)/37 (56.9%) 369 (50.4%)/150 (57.7%) 0.009/0.911
Internal hemorrhoids 146 (58.9%) 506 (51.0%) 0.027
External hemorrhoids 16 (6.5%) 82 (8.3%) 0.343
Mixed hemorrhoids 13 (5.2%) 69 (7.0%) 0.331
  1. aUsed student's t test to compare the age of the two groups. Categorical values compared with chi-square test (colorectal cancer, scattered ulcer/erosion, hemorrhoids), and Fisher's exact test was used when expected count of one set of samples was less than 5(ulcerative colitis, colon and rectum cancer, scattered ulcer/erosion of ascending colon, transverse colon and descending colon)