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Table 2 Secondary outcomes

From: Comparison between high-flow nasal oxygen (HFNO) alternated with non-invasive ventilation (NIV) and HFNO and NIV alone in patients with COVID-19: a retrospective cohort study

 

All patients (n = 266)

NIV (n = 92)

HFNO (n = 31)

NIV + HFNO (n = 143)

p value

ICU length of stay, (days)

7 (3–15)

8.5 (5–14)

9 (7–23)

15 (10–25)*

 < 0.001

Hospital length of stay, (days)

8 (5–15)

13 (10–21)

17 (11.5–27)

20 (15–30)*

 < 0.001

 

All patients who were in IMV (n = 98)

NIV (n = 24)

HFNO (n = 7)

NIV + HFNO (n = 67)

p value

Time to IMV, (days)

8 (6–12)

8 (6–15)

9 (5.5–10)

8 (6–11)

0.837

  1. Values are medians (interquartile range). Bonferroni multiple comparison tests were done for proportions or continuous variables, as appropriate
  2. IMV invasive mechanical ventilation, NIV non-invasive ventilation, HFNO high-flow nasal oxygen, ICU intensive care unit
  3. *Versus the NIV group