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Characteristics (n = 59)
NIMV failure (n = 30)
NIMV success (n = 29)
P
Age (years)
50.2 (± 16.7)
53.4 (± 17.4)
0.48
Sex
17 (56.7%)
14 (48.3%)
0.51
Lactate
1.4 (1.1–3.7)
1.4 (1.1–2.2)
0.63
PaO2 upon inclusion (mmHg)
86.1 (73.7–115.9)
80.2 (74.2–109)
0.57
P/F upon inclusion
266.5 (222.8–336.3)
275 (243.5–335)
0.77
SaO2
90 (86.5–95)
92 (90–96.5)
0.11
Overall leukocyte count (cells/mm3 )
1020 (150–4233)
1794 (650–9210)
0.07
CRP
261.6 (128.5–361.6)
169.3 (99.5–251.7)
0.09
RR (rpm)
34 (29–39)
29 (27.5–34)
0.042
APACHE II
21 (17–27)
21 (17.5–24)
0.53
SAPS 3
64.5 (53.7–71.2)
63 (55–71)
0.85
SOFA admission
7.0 (5.0–8.2)
5.0 (3.5–7.0)
0.007
Use of vasopressor
27 (90%)
8 (27.6%)
< 0.001
Use of ATB
28 (93.3%)
25 (86.2%)
0.36
Use of ATF
24 (80 %)
22 (75.9%)
0.70
Use of corticosteroids
10 (33.3%)
13 (44.9%)
0.36
NT-proBNP
3255 (1055–13727)
4650 (1440–11905)
0.516
Comorbidities
COPD
4 (13.3%)
2 (6.9%)
0.42
HF
3 (10%)
7 (24.1%)
0.14
Follow-up data
HD
3 (10%)
2 (6.9%)
0.66
CT
17 (56.7%)
12 (40%)
0.24
Exclusive palliative care
2 (6.7%)
6 (20.7%)
0.11
ATB antibiotics, ATF antifungal, NT-proBNP biomarker portion N-terminal of pro-hormone of B-type natriuretic peptide, COPD chronic obstructive pulmonary disease, HF heart failure, PaO 2 P/F PaO2 /FIO2 ratios, ICU intensive care unit, NIMV non-invasive mechanical ventilation, SaO 2 cells/mm 3 mmHg millimeters of mercury, CRP reactive protein, RR respiratory rate (incursion per minute), APACHE II Acute Physiology and Chronic Health Evaluation II; SAPS 3 Simplified Acute Physiology Score 3 , SOFA Sequential Organ Failure Assessment , HD hemodialysis, CT chemotherapyExcept for age, presented as mean ± standard deviation, all continuous variables are presented as median (Q1–Q3). Categorical variables are presented as n (%)
Significance was considered when P < 0.05
