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Table 4 Characteristics of patients before and after propensity-score matching in Group A (epinephrine–saline injection) and Group B (hypertonic saline injection)

From: Colorectal endoscopic mucosal resection with submucosal injection of epinephrine versus hypertonic saline in patients taking antithrombotic agents: propensity-score-matching analysis

 

Before propensity score matching

Group A

Group B

P value

Standardized difference

Number of patients (n)

102

102

  

Age (years)

73.7 ± 8.7

73.7 ± 8.3

0.97

0.02

Sex, male

84 (82.4%)

84 (82.3%)

1.00

0.00

Anticoagulants

21 (20.6%)

40 (39.2%)

0.006

0.42

Antiplatelet agents

85 (83.3%)

69 (67.6%)

0.014

0.37

Operators of trainees

72 (70.6%)

50 (49.0%)

0.003

0.45

After propensity score matching

Number of patients (n)

80

80

  

Age (years)

73.2 ± 8.5

73.4 ± 8.3

0.87

0.07

Sex, male

66 (82.5%)

66 (82.5%)

1.00

0.00

Anticoagulant agents

18 (22.5%)

20 (25.0%)

0.85

0.06

Antiplatelet agents

63 (78.8%)

64 (80.0%)

1.00

0.03

Operators of trainees

50 (62.5%)

48 (60.0%)

0.87

0.05

  1. Results are presented as mean ± SD or number of patients