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Table 2 Colorectal neoplasm detection by quartile of colonoscopy cecal insertion time (N = 12,679)

From: The association between cecal insertion time and colorectal neoplasm detection

  N (%) Quartiles of cecal insertion time, % (SE%)
First Second Third Fourth P value
(<3.1 min) (3.1-4.6 min) (4.7-7.1 min) (≥7.2 min)
No colorectal lesion 8,429 (66.5) 63.2 (0.8) 66.6 (0.9) 67.3 (0.8) 69.0 (0.8)  
Any colorectal lesion detection 4,250 (33.5) 36.8 (0.8) 33.4 (0.9) 32.7 (0.8) 31.0 (0.8) <0.001
 Small single adenoma, <5 mm 1,956 (15.4) 17.7 (0.7) 15.1 (0.7) 14.9 (0.6) 13.9 (0.6) <0.001
 Medium single adenoma, 5-9 mm 595 (4.7) 4.7 (0.4) 4.7 (0.4) 4.8 (0.4) 4.6 (0.4) 0.86
 Multiple adenomas or advanced colorectal neoplasm 1,699 (13.4) 14.4 (0.6) 13.6 (0.6) 13.0 (0.6) 12.5 (0.6) 0.019