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Table.2 Clinical characteristics of patients in the study before and after propensity score

From: Antibiotics for fever in patients without perforation after gastric endoscopic submucosal dissection and endoscopic submucosal excavation may be unnecessary: a propensity score-matching analysis

 

Before matching

p

After matching

p

Non-antibiotics(n = 186)

Antibiotics (n = 67)

ASDa

Non-antibiotics(n = 55)

Antibiotics (n = 55)

ASDa

Age, mean ± SD

52.8 ± 13.0

55.6 ± 14.5

0.686

0.014

55.9 ± 13.4

54.5 ± 14.1

0.021

0.609

Gender [No. %]

  

0.024

0.763

  

0.022

0.327

 Female

125 (67.2)

143 (64.2)

  

31 (56.4)

37 (67.3)

  

 Male

61 (32.8)

24 (35.8)

  

24 (43.6)

18 (32.7)

  

Diabetes [No. %]

8 (4.3)

4 (6)

0.014

0.738

6 (10.9)

4 (7.3)

0.011

0.742

Hypertension [No. %]

28 (15.1)

18 (26.9)

0.022

0.042

16 (29.1)

14 (25.5)

0.02

0.831

Previous abdominal surgery [No. %]

24 (12.9)

10 (14.9)

0.017

0.835

7 (12.7)

8 (14.5)

0.015

1

Lesion location [No. %]

  

0.24

< 0.001

  

0.04

0.839

 Upper 1/3 stomach

48 (25.8)

22 (32.8)

  

18 (32.7)

16 (29.1)

  

 Middle 1/3 stomach

63 (33.9)

22 (32.8)

  

20 (36.4)

19 (34.5)

  

 Lower 1/3 stomach

75 (40.3)

23 (34.3)

  

17 (30.9)

20 (36.4)

  

Median tumor size (mm, IQR)

10 (8–15)

13 (8–26)

0.596

0.127

14 (8–20)

13 (8–19)

0.044

0.507

Pathology [No. %]

  

0.021

0.546

  

0.018

0.823

 Mucosa / Submucosa

142 (76.3)

51 (76.1)

  

41 (74.5)

43 (78.2)

  

 Muscular layer

44 (23.7)

16 (23.9)

  

14 (25.5)

12 (21.8)

  

Intraoperative bleeding [No. %]

54 (29)

27 (40.3)

0.024

0.095

22 (40)

21 (38.2)

0.021

1

Median operation time (min, IQR)

33 (23–43)

37 (24.5–56.5)

0.763

0.076

37 (30–51)

37 (21.5–50.5)

0.078

0.183

En bloc resection [No. %]

173 (93)

60 (89.6)

0.014

0.428

54(98.2)

50 (90.9)

0.011

0.206

Median maximum body temperature (°C, IQR)

37.6 (37.6–38)

38 (37.8–38.6)

0.023

< 0.001

37.9 (37.6–38.4)

38 (37.7–38.4)

0.02

0.523

 < 38.5 °C

174 (93.5)

46 (68.7)

  

45 (81.8)

43 (78.2)

  

 ≥ 38.5 °C

12 (6.5)

21 (31.3)

  

10 (18.2)

12 (21.8)

  

Stomach tube placement [No. %]

124 (66.7)

46 (68.7)

0.024

0.008

39 (70.9)

38 (69.1)

0.023

1

  1. aThe absolute standardized difference (ASD) was used to assess the balance of covariates between the two groups. Variables with an ASD > 0.10 is considered to be imbalance