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Table 1 Baseline characteristics

From: Predictors of 1-year mortality in patients on prolonged mechanical ventilation after surgery in intensive care unit: a multicenter, retrospective cohort study

 

Total

(N = 124)

Non-survivors

(N = 92)

Survivors

(N = 32)

P value

Age (y)

66.5 ± 16.5

67.8 ± 15.8

62.8 ± 18.1

0.138

Male sex

90 (72.6)

67 (72.8)

23 (71.9)

0.917

Preoperative comorbidities

Central nervous system

24 (19.4)

19 (20.7)

5 (15.6)

0.535

 Stroke

16 (12.9)

13 (14.1)

3 (9.4)

0.760

 Cephalomeningitis

5 (4.0)

3 (3.3)

2 (6.3)

0.603

 Parkinsonism

2 (1.6)

2 (2.2)

0 (0.0)

> 0.999

 Intracranial aneurysm

1 (0.8)

1 (1.1)

0 (0.0)

> 0.999

 Dementia

1 (0.8)

1 (1.1)

0 (0.0)

> 0.999

Respiratory system

37 (29.8)

27 (29.4)

10 (31.3)

0.839

 Smoking a

31 (25.0)

22 (23.9)

9 (28.1)

0.636

 Tuberculosis

5 (4.0)

5 (5.4)

0 (0.0)

0.326

 Asthma

4 (3.2)

3 (3.3)

1 (3.1)

> 0.999

 COPD

4 (3.2)

2 (2.2)

2 (6.3)

0.274

 Pulmonary heart disease

1 (0.8)

1 (1.1)

0 (0.0)

> 0.999

Circulatory system

79 (63.7)

59 (64.1)

20 (62.5)

0.869

 Hypertension

66 (53.2)

49 (53.3)

17 (53.1)

0.989

 Coronary heart disease

27 (21.8)

22 (23.9)

5 (15.6)

0.328

 Arrhythmia

14 (11.3)

8 (8.7)

6 (18.8)

0.122

 Cardiomyopathy

1 (0.8)

1 (1.1)

0 (0.0)

> 0.999

Metabolic and immune system

35 (28.2)

30 (32.6)

5 (15.7)

0.066

 Diabetes

24 (19.4)

21 (22.8)

3 (9.4)

0.097

 Hyperlipemia

5 (4.0)

5 (5.4)

0 (0.0)

0.326

 Thyroid disease

2 (1.6)

2 (2.2)

0 (0.0)

> 0.999

 Rheumatoid arthritis

2 (1.6)

1 (1.1)

1 (3.1)

0.451

 Gout

1 (0.8)

1 (1.1)

0 (0.0)

> 0.999

 Systemic lupus erythematosus

1 (0.8)

0 (0.0)

1 (3.1)

0.258

NYHA functional classification

0.058

 I

63 (50.8)

42 (45.7)

21 (65.6)

 

 II

34 (27.4)

30 (32.6)

4 (12.5)

 

 III

17 (13.7)

11 (12.0)

6 (18.8)

 

 IV

10 (8.1)

9 (9.8)

1 (3.1)

 

Abnormal liver function b

5 (4.0)

4 (4.4)

1 (3.1)

> 0.999

Abnormal renal function c

5 (4.0)

4 (4.4)

1 (3.1)

> 0.999

Radio−/chemotherapy in 6 months

4 (3.2)

2 (2.2)

2 (6.3)

0.274

Cancer surgery

44 (35.5)

40 (43.5)

4 (12.5)

0.002

Location of surgery

   

0.015

 Intra-thoracic

45 (36.3)

39 (42.4)

6 (18.8)

 

 Intra-abdominal

40 (32.3)

30 (32.6)

10 (31.3)

 

 Others d

39 (31.5)

23 (25.0)

16 (50.0)

 

Preoperative ASA classification

   

0.270

 I

10 (8.1)

9 (9.8)

1 (3.1)

 

 II

63 (50.8)

43 (46.7)

20 (62.5)

 

 III

22 (17.7)

16 (17.4)

6 (18.8)

 

 IV

29 (23.4)

24 (26.1)

5 (15.6)

 

Urgent surgery

37 (29.8)

27 (29.3)

10 (31.3)

0.839

ICU admission for new onset POCs

31 (25.0)

18 (19.6)

13 (40.6)

0.018

Scores on ICU admission

    

 SOFA score

7.4 ± 3.3

7.6 ± 3.4

6.5 ± 2.5

0.051

 APACHE II score

20.0 ± 7.3

20.9 ± 7.7

19 ± 5.7

0.210

  1. Results are presented as mean ± SD and numbers (%)
  2. COPD, chronic obstructive pulmonary diseases. NYHA, the New York Heart Association. ICU, intensive care unit. POCs, postoperative complications. SOFA, sequential organ failure assessment. APACHE, acute physiology and chronic health evaluation
  3. aSmoking for more than 10 cigarettes per day for more than 1 year, including current or past smokers
  4. bSerum alanine transaminase or aspartate transaminase higher than 5 times of the normal upper limit
  5. cDefined as glomerular filtration rate (GFR) < 60 ml/min/1.73 m2
  6. dInclude neurosurgery, thyroid surgery and orthopedic surgery
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BMC Anesthesiology

ISSN: 1471-2253

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