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. 2019 May 3;6:91. doi: 10.3389/fmed.2019.00091

Table 4B.

Risk of colorectal cancer according to Hb quartil.

Global n = 2,742 Range Screening group n = 1,515 Range Symptomatic group
n = 1,227
Q1 <270 1 <196 1 <223 1
Q2 270–430 0.68 (0.33 – 1.38) 196 – 370 0.70 (0.22 – 2.21) 223 – 513 0.75 (0.32 – 1.73)
Q3 431–1,956 2.50 (1.45 – 4.32) 371 – 769 2.05 (0.81 – 5.21) 514 – 3321 2.50 (1.28 – 4.87)
Q4 ≥1,957 8.11 (4.94 – 13.30) ≥770 5.76 (2.55 – 13.01) ≥3322 8.82 (4.80 – 16.21)

OR (CI 95%). Bold values highlight the statistically significant data.