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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 AGroup BP valueStandardized difference
Number of patients (n)102102  
Age (years)73.7 ± 8.773.7 ± 8.30.970.02
Sex, male84 (82.4%)84 (82.3%)1.000.00
Anticoagulants21 (20.6%)40 (39.2%)0.0060.42
Antiplatelet agents85 (83.3%)69 (67.6%)0.0140.37
Operators of trainees72 (70.6%)50 (49.0%)0.0030.45
After propensity score matching
Number of patients (n)8080  
Age (years)73.2 ± 8.573.4 ± 8.30.870.07
Sex, male66 (82.5%)66 (82.5%)1.000.00
Anticoagulant agents18 (22.5%)20 (25.0%)0.850.06
Antiplatelet agents63 (78.8%)64 (80.0%)1.000.03
Operators of trainees50 (62.5%)48 (60.0%)0.870.05
  1. Results are presented as mean ± SD or number of patients