Table 2

- Summary of the ICU maximum respiratory support modality by patients’ characteristics.

Variables	HFNC	MV	MV+ECMO	For X²p-values
Age (mean)	33.9	34.0	30.8	0.30
BMI (mean)	30.5	33.1	32.9	0.61
APACHE 4 scores (mean)	28.1	46.1	69.9	0.0003^*
ICU admission, days (mean)	4.3	19.2	34.6	0.007^*
Hospital admission, days (mean)	10.6	26.2	43.9	0.002^*
Delivery procedure
Normal	1 (2.6)	1 (2.6)	0 (0.0)	0.0003^*
C-section	3 (7.9)	17 (44.7)	11 (29.0)
Discharge pregnant	5 (13.2)	0 (0.0)	0 (0.0)
Newborn’s status
Alive	9 (23.7)	16 (41.1)	8 (21.1)	0.04^*
Died	0 (0.0)	1 (2.6)	4 (10.5)	0.04^*
Patient’s status
Survived	9 (23.7)	16 (41.1)	7 (18.4)	0.012^*
Died	0 (0.0)	1 (2.6)	5 (13.2)	0.012^*
Co-infections
None	7 (18.4)	6 (15.8)	2 (5.3)	0.07
Single	1 (2.6)	4 (10.5)	5 (13.2)
Multiple	1 (2.6)	7 (18.4)	5 (13.2)
Antibiotic resistance
No	9 (23.7)	15 (39.5)	10 (26.3)	0.46
Yes	0 (0.0)	2 (5.3)	2 (5.3)	0.46
Comorbidity status
No	7 (18.4)	11 (28.9)	11 (28.9)	0.24
Yes	2 (5.3)	6 (15.8)	1 (2.6)	0.24

Values are presented as numbers and precentages (%) or means.

HFNC: high-flow nasal cannula, MV: mechanical ventilation, ECMO: extracorporeal membrane oxygenation,

BMI: body mass index, APACHE: acute physiology and chronic health evaluation, ICU: intensive care unit