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Table 1 Demographic data and univariate analyses

From: Predictors for hemostatic thrombin-gelatin matrix usage in spine surgery: a multicenter observational study

 

Total

TGM used

No TGM used

p

n

5520

1934

3586

 

Age (yrs)

63.5 (17.9)

65.2 (16.2)

63.0 (17.4)

< 0.001

Sex (male, %)

59.9%

57.8%

60.9%

0.03

BMI

23.9 (4.2)

24.0 (4.2)

24.0 (4.0)

0.11

Smoking

10.6%

10.4%

10.7%

0.69

ASA

    

1

17.9%

14.5%

19.6%

 

2

69.1%

73.6%

66.7%

 

3

12.8%

11.6%

13.5%

 

4

0.1%

0.1%

0.1%

 

ASA ≥ 2

82.1%

85.4%

80.4%

< 0.001

Diabetes mellitus

18.2%

17.8%

18.5%

0.57

Rheumatoid arthritis

2.3%

3.5%

1.6%

< 0.001

Anticoagulation

15.8%

15.3%

16.0%

0.45

  1. TGM: thrombin-gelatin matrix, BMI: body mass index, ASA: American Society of Anesthesiologists physical status classification
  2. Continuous variables are shown as means and standard deviations in parentheses