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. 2022 Oct 17;163(3):554–566. doi: 10.1016/j.chest.2022.10.010

Table 3.

No. of Days of IMV and ICU LOS According to Ventilatory Support on Admission Among Obstetric Patients With COVID-19 Requiring IMV as Maximum Ventilatory Support in 21 ICUs in Argentina and Colombia During 2021

Variable Type of respiratory support on admission
PValue
HFNC NRM NP NIMV IMV
No. of patients 24 21 2 2 20 . . .
IMV duration, d 10 (10-20) 14 (5-23) 18 (11-32) 18 (7-28) 21 (11-35) .22
ICULOS, d 14 (11-27) 18 (11-32) 21 (18-24) 26 (15-36) 30 (18-43) .07

Data are presented as median (interquartile range), unless otherwise indicated. HFNC = high-flow nasal cannula; IMV = invasive mechanical ventilation; LOS = length of stay; NIMV = noninvasive mechanical ventilation; NP = nasal prong; NRM = nonrebreathing mask.