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Table 3 Primary and secondary outcomes

From: Antithrombotic drugs do not increase intraoperative blood loss in emergency gastrointestinal surgery: a single-institution propensity score analysis

 

Before matching

After matching

 

AT

Control

p value

AT

Control

p value

Subjects

170

1014

 

113

113

 

Intraoperative blood loss (ml)

50 (210–10)

10 (86–5)

< 0.001

60 (225–10)

100 (243–10)

0.433

Severe hemorrhage

33 (19.4)

137 (13.5)

0.03

25 (22.1)

22 (19.5)

0.743

Blood transfusion

      

Red Blood Cell

36 (21.2)

123 (12.1)

0.002

27 (23.9)

18 (15.9)

0.182

 Amount (units)

0 (0–0)

0 (0–0)

0.002

0 (0–0)

0 (0–0)

0.127

Fresh Frozen Plasma

30 (17.6)

74 (7.3)

< 0.001

19 (16.8)

15 (13.3)

0.577

 Amount (units)

0 (0–0)

0 (0–0)

< 0.001

0 (0–0)

0 (0–0)

0.430

Platelet

8 (4.7)

22 (2.2)

0.063

7 (6.2)

2 (1.8)

0.171

 Amount (units)

0 (0–0)

0 (0–0)

0.051

0 (0–0)

0 (0–0)

0.090

Bleeding events

7 (4.1)

25 (2.5)

0.206

5 (4.4)

2 (1.8)

0.446

Thrombotic events

4 (2.4)

21 (2.1)

0.773

2 (1.8)

3 (2.7)

1.000

Mortality

16 (9.4)

35 (3.5)

0.001

11 (9.7)

5 (4.4)

0.193

Operative time (min)

101 (149–73)

90 (127–65)

< 0.001

99 (150–72)

117 (151–77)

0.244

Length of stay (days)

21 (33–13)

6 (19–10)

< 0.001

21 (33–13)

16 (29–11)

0.060

Other complications

      

 Surgical site infection

33 (19.4)

133 (13.1)

0.032

26 (23.0)

29 (25.7)

0.757

 Abscess

20 (11.8)

112 (11.0)

0.792

14 (12.4)

18 (15.9)

0.568

 Pneumonia

21 (12.4)

43 (4.2)

< 0.001

15 (13.3)

9 (8.0)

0.280

  1. Data are presented as number (percentage) or median (interquartile)
  2. One unit of red blood cells, fresh frozen plasma, and platelet are approximately 120 cc, 120 cc, and 20 cc, respectively
  3. AT antithrombotic drug group