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Table 1 Patient demographic characteristics of study groups after propensity score matching

From: Clinical and economic outcomes after sternotomy for cardiac surgery with skin closure through 2-octyl cyanoacrylate plus polymer mesh tape versus absorbable sutures plus waterproof wound dressings: a retrospective cohort study

 

2OPMT group

CSWWD group

Std. Diff.*

N

5,338

100%

5,338

100%

 

Age, mean/SD

65

10.68

65

10.53

0.000

Age category, N/%

 18–34

51

1.00%

52

1.00%

−0.002

 35–44

147

2.80%

142

2.70%

0.006

 45–54

548

10.30%

548

10.30%

0.000

 55–64

1,416

26.50%

1,452

27.20%

−0.015

 65–74

2,062

38.60%

2,082

39.00%

−0.008

 75–84

1,024

19.20%

986

18.50%

0.018

 85+

90

1.70%

76

1.40%

0.021

 Female, N/%

1,487

27.90%

1,499

28.10%

−0.005

Marital status, N/%

 Married

3,230

60.50%

3,201

60.00%

0.011

 Single

1,864

34.90%

1,877

35.20%

−0.005

 Other

229

4.30%

249

4.70%

−0.018

 Unknown

15

0.30%

11

0.20%

0.015

Race, N/%

 Black

401

7.50%

419

7.80%

−0.013

 Asian

86

1.60%

79

1.50%

0.011

 White

4,554

85.30%

4,500

84.30%

0.028

 Other

239

4.50%

273

5.10%

−0.030

 Unknown

58

1.10%

67

1.30%

−0.016

Payer, N/%

 Commercial

1,393

26.10%

1,392

26.10%

0.000

 Medicaid

375

7.00%

393

7.40%

−0.013

 Medicare

3,177

59.50%

3,153

59.10%

0.009

 Other

393

7.40%

400

7.50%

−0.005

Discharge Year, N/%

 2015 (October onwards)

69

1.30%

72

1.30%

−0.005

 2016

693

13.00%

671

12.60%

0.012

 2017

1,185

22.20%

1,146

21.50%

0.018

 2018

1,331

24.90%

1,304

24.40%

0.012

 2019

1,469

27.50%

1,503

28.20%

−0.014

 2020 (through June)

591

11.10%

642

12.00%

−0.030

  1. SD standard deviation; Std. Diff. standardized mean difference
  2. *A standardized mean difference with an absolute value ≤ 0.10 is considered to balanced