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Table 3 Logistic regression analysis showing that the increased odds ratio (OR) for detecting polyps 5 mm or larger with the one-person technique is due to longer withdrawal time.

From: Gastronet survey on the use of one- or two-person technique for colonoscopy insertion

  Unadjusted OR (95% confidence interval) p-value Adjusted OR (95% confidence interval) p-value
Male sex 1.00 (reference)   1.00 (reference)  
Female sex 0.73 (0.66-0.81) < 0.001 0.85 (0.75-0.96) 0.008
Age (5-year categories) 1.15 (1.13-1.17) < 0.001 1.15 (1.12-1.18) < 0.001
One- person technique 1.00 (reference)   1.00 (reference)  
Two-person technique 0.77 (0.65-0.93) 0.005 1.18 (0.97-1.43) 0.095
Withdrawal time 1.14 (1.13-1.15) < 0.001 1.15 (1.14-1.16) < 0.001