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Table 1 Clinical characteristics

From: Different effects of cardiac and diaphragm function assessed by ultrasound on extubation outcomes in difficult-to-wean patients: a cohort study

 

Respiratory failure within 48 h

Variables

RF subgroup

ES subgroup

N (cases)

29

31

Demographic factors:

 Age (yrs)

70.8 ± 15.6

62.3 ± 22.2

 Male

18 (62)

17 (55)

 BMI (kg/m2)

24.4 ± 5.3

24.3 ± 4.3

Comorbidities:

 Chronic respiratory diseasesa

19 (66)

7 (23)*

 Coronary heart disease

16 (55)

7 (23)*

 Myocardial infarction

11 (38)

6 (19)

 Hypertension

17 (59)

19 (61)

 Atrial fibrillation

8 (28)

3 (32)

 Diabetes

11 (38)

12 (39)

 Renal dysfunction

10 (29)

5 (16)

 Cerebral vascular diseasesb

6 (21)

4 (13)

Clinical characteristics:

 APACHE II

23.9 ± 4.7

20 ± 6.4*

 Duration from onset to the first intubation (d)

6.3 [1.5–9]

3.6 [1–6]*

 Duration of the first intubation to extubation (d)

10.4 ± 6.9

7.2 ± 4.7*

 RR (breaths/min)

21.6 ± 4.3

21.5 ± 4.7

 VT (l)

0.43 ± 0.12

0.41 ± 0.09

 RSBI

55.8 ± 22.2

55.9 ± 22.1

 GCS

13.4 [13–15]

13.8 [13–15]

 WBC (×109/l)

9.8 ± 3.9

10.9 ± 5.6

 Hemoglobin (g/l)

103 ± 23

89 ± 14*

 Albumin (g/l)

28.8 ± 4.2

27.7 ± 3.9

 Plasma creatinine (micromole/l)

121 ± 74

115 ± 80

  1. Data are presented as median ± SD or median (IQR) or n (%). APACHE II Acute Physiology and Chronic Health Evaluation II, BMI body mass index, ES extubation success, GCS Glasgow coma scale, RF respiratory failure, RR respiratory rate, RSBI rapid shallow breathing index, V T tidal volume, WBC white blood cell. aAsthma, obsolete tuberculosis, chronic obstructive pulmonary disease, bronchiectasis and interstitial lung disease are included. bCerebral infarction, cerebral hemorrhage and subarachnoid hemorrhage are included. * Significant at p < 0.05