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Table 4 Comparison of pks prevalence among previous reports and the present study

From: Prevalence of pks-positive Escherichia coli in Japanese patients with or without colorectal cancer

  Sample # of patients Country pks prevalence
Arthur et al. [8] Tissue 45 UK CRC 67%
Control 21%
(p < 0.001)
Buc et al. [9] Tissue 69 France CRC 55%
Diverticulosis 19%
(p = 0.0024)
Johnson et al. [14] Stool (rectal swab) 69 USA CRC NA
Control 32%
Gomez-Moreno et al. [20] Stool 41 USA (Puerto Rico) CRC NA
Control 20%
Present study Colonic lavage 61 Japan CRC 43%
Control 46%
(p = 0.798)
  1. CRC colorectal cancer, NA​ no answer
  2.  35 CRC patients and 26 controls