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Table 2 Clinical outcomes in the clipping and non-clipping groups before and after propensity score matching

From: The effect of prophylactic hemoclip placement and risk factors of delayed post-polypectomy bleeding in polyps sized 6 to 20 millimeters: a propensity score matching analysis

 

Before PSM (N = 1424)

After PSM (N = 1188)

Clipping group

Non-clipping group

p value

Clipping group

Non-clipping group

p value

 

N = 789 (55.0%) 1037 polyps (53.8%)

N = 635 (45.0%) 888 polyps (46.2%)

 

N = 612 (51.5%); 806 polyps

N = 576 (48.5%); 806 polyps

 

Bleeding event, No (%)

9 (1.14)

8 (1.25)

0.938

5 (0.81)

8 (1.38)

0.403

Days to bleeding (mean ± S.D.)

3.44 ± 1.74

4.13 ± 3.40

0.963

3.4 ± 1.94

4.13 ± 3.39

0.943

  1. PSM propensity score matching; S.D. standard deviation
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BMC Gastroenterology

ISSN: 1471-230X

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