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Table 1 Baseline characteristics of the patients who underwent PT

From: Comparison of outcomes between vertical and transverse skin incisions in percutaneous tracheostomy for critically ill patients: a retrospective cohort study

Characteristics

Vertical

(n = 124)

Transverse

(n = 334)

P value

Age, years

68.4 ± 15.1

68.2 ± 15.7

0.948

Sex, male (%)

77 (60.7)

223 (66.8)

0.553

BMI

20.5 ± 4.9

20.7 ± 3.7

0.294

Duration of mechanical ventilation before PT (day)

10.6 ± 6.3

9.7 ± 7.7

0.437

APACHE II

25.98 ± 6.5

26.23 ± 8.3

0.567

Reason for tracheostomy (%)

 

0.211

 Need for long-term free airway maintenance

73 (58.8)

178 (53.2)

 

 Prolonged mechanical ventilation

50 (40.3)

140 (42.0)

 

Laboratory findings (coagulation)

 Platelets (103/μl)

207

208

0.695

 PT (INR)

1.12

1.15

0.229

 aPTT (s)

40.15

39.60

0.988

Antiplatelet agent during perioperative period (%)

17 (13.6)

36 (10.8)

0.472

 Aspirin

14 (11.2)

22 (6.6)

 

 Clopidogrel

2 (1.6)

5 (1.5)

 

 Aspirin and clopidogrel

1 (0.8)

9 (2.7)

 

Anticoagulant during perioperative period (%)

18 (14.7)

29 (8.7)

0.039

Operated on by attending physician (%)

82 (65.3)

198 (59.3)

0.190

Periprocedural parameters

 Size of incision (cm)

1.4 ± 0.2

1.3 ± 0.2

0.046

 Procedure time (min)

19.3 ± 9.0

16.10 ± 8.8

< 0.005

Length of stay in ICU

25.4

24.0

0.001

Length of stay in hospital

61.6

74.8

0.067

In-hospital mortality

30 (24)

70 (20.8)

0.494

  1. Values are presented as number (%) or mean ± SD
  2. APACHE Acute Physiology and Chronic Health Evaluation, BMI body mass index, PT percutaneous tracheostomy, PT INR the international normalized ratio of prothrombin time, aPTT activated partial thromboplastin time