. 2020 Feb 5;41(4):729–735. doi: 10.1007/s00246-020-02290-6

Table 3.

Univariate analysis of the association of ventilatory parameters and success/failure of NIV

Variable	NIV success		OR (unadjusted)	95% CI		p^a
Variable	Yes (n = 105)	No (n = 65)	OR (unadjusted)	Inferior	Superior	p^a
Pressure gradient min–max	11.8–12.8 (1.8–1.9)^b	13.9–15.1 (2.1–2.3)^b	1.78	1.44	2.20	< 0.001**
Peep min–max	5.6–5.9 (0.7–0.8)^b	6–6.5 (0.9–0.9)^b	1.78	1.17	2.72	0.006**
SpO₂ min–max	90.4–96.8 (1.9–4.2)^b	82.5–92.5 (6.8–5.5)^b	0.87	0.82	0.92	0.001**
FiO₂ min–max	33.8–37.4 (5.8–7.6)^b	47.9–59.2 (10–14.5)^b	1.25	1.17	1.33	< 0.001**
FiO₂ decrease	11.4 (9.8)^b	13.9 (12.6)^b	1.02	0.99	1.05	0.172**

PEEP positive end expiratory pressure, SpO₂ oxygen saturation, FiO₂ fraction of inspired oxygen, min minimum, max maximum

^aChi-square test

^bMean (SD)

*Mann–Whitney test, **Student’s t test