Characteristic CRC N (%) Controls N (%) tst p value
Sample size 126 116    
Ethnicity Kazakh 43 (34) 42 (36) 0.273 0.601
Russian 77 (61) 70 (60) 0.076 0.783
Other Asians 6 (5) 4 (4) 0.486 0.486
Age (years) Median 63,6 ± 9,90 64.5 ± 9,14 1.972 0.160
Range 36-82 37-82    
Gender Male 47 (37) 44 (38) 0.080 0.780
Female 79 (63) 72 (62) 0.062 0.803
Smoking status Ever 35 (28) 24 (21) 1.075 0.300
Never 66 (52) 91 (78) 2.389 0.122
did not respond 25 (20) 1 (1) 0.975 0.323
Alcohol consumption Positive 29 (23) 31 (27) 0.580 0.446
Negative 72 (57) 84 (72) 1.455 0.228
did not respond 25 (20) 1 (1) 0.975 0.323
Table 1: Demographic characteristics of CRC patients and controls.