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Table 1 Demographic, clinical and mutation characteristics of the sample

From: Predictive models for mutations in mismatch repair genes: implication for genetic counseling in developing countries

Characteristic Category N (%)
Age at CRC diagnosis Under 30 yrs old 13 14.8
  31-50 yrs old 54 61.4
  Over 50 yrs old 21 23.9
Sex Female 58 65.9
  Male 30 34.1
Ethnicity (self-reported) White 55 62.5
  "Pardo"* 31 35.2
  Non-available 2 2.3
Place of Birth Southeast 67 76.1
  Northeast 12 13.6
  South 3 3.4
  North 2 2.3
  Midwest 2 2,3
Colorectal tumor Separate 78 88.6
  Synchronous 9 10.2
  Metachronous 1 1.1
Extracolonic tumors in proband Endometrial 6 6.8
  Breast 3 3.4
  Stomach 2 2.3
  Small intestine 2 2.3
  Hepatic 1 1.1
  Pelvis renal and ureter 1 1.1
  Ovary 1 1.1
Classification according to family history Bethesda Criteria 50 56.8
  Amsterdam Criteria 38 43.2
Patogenic mutations None 57 64.8
  MLH1 15 17.0
  MSH2 16 18.2
  1. *Those who declare with admixture or multiethnic origin