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Table 3 Odds ratios for colorectal neoplasm detection by colonoscopy cecal insertion times (N = 12,679)

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

 

Quartiles of cecal insertion time, Odds Ratio (95% CI)

First

Second

Third

Fourth

Per 5-minute increase

P-trend

(<3.1 min)

(3.1-4.6 min)

(4.7-7.1 min)

(≥7.2 min)

Any colorectal neoplasms

      

 Crude OR* (95% CI)

1.00 (ref.)

0.87 (0.78, 0.97)

0.93 (0.83, 1.04)

0.90 (0.80, 1.02)

0.97 (0.92, 1.01)

0.16

 Adjusted OR** (95% CI)

1.00 (ref.)

0.95 (0.85, 1.06)

1.01 (0.89, 1.13)

0.94 (0.83, 1.07)

0.96 (0.91, 1.01)

0.13

Small single adenoma, < 5 mm

      

 Crude OR* (95% CI)

1.00 (ref.)

0.80 (0.69, 0.92)

0.83 (0.72, 0.96)

0.77 (0.66, 0.91)

0.89 (0.83, 0.95)

0.001

 Adjusted OR** (95% CI)

1.00 (ref.)

0.87 (0.75, 1.00)

0.91 (0.78, 1.06)

0.84 (0.71, 0.99)

0.90 (0.84, 0.97)

0.005

Medium single adenoma, 5-9 mm

      

 Crude OR* (95% CI)

1.00 (ref.)

1.00 (0.78, 1.28)

1.10 (0.86, 1.41)

1.08 (0.83, 1.41)

1.05 (0.94, 1.16)

0.37

 Adjusted OR** (95% CI)

1.00 (ref.)

1.05 (0.82, 1.35)

1.16 (0.89, 1.50)

1.11 (0.84, 1.46)

1.05 (0.94, 1.16)

0.40

Multiple adenomas or advanced colorectal neoplasm

      

 Crude OR* (95% CI)

1.00 (ref.)

0.93 (0.80, 1.08)

0.99 (0.85, 1.16)

1.02 (0.86, 1.20)

1.02 (0.96, 1.09)

0.52

 Adjusted OR** (95% CI)

1.00 (ref.)

1.03 (0.88, 1.22)

1.09 (0.92, 1.29)

1.04 (0.87, 1.24)

1.00 (0.93, 1.07)

0.99

  1. * Crude OR conditions on colonoscopist.
  2. ** Adjusted OR adjusts for age, sex, body mass index, waist circumference, family history of colorectal cancer, history of colorectal polyp, diabetes mellitus, hyperlipidemia, aspirin medication, other NSAID medication, calcium supplementation, alcohol use, smoking history, colonoscopist, and bowel preparation.