Table 5.

Nadir PaO₂ and Pulmonary Complications in Non-Ventilated (NV) and Low Tidal Volume (LTV) Patients

	NV	LTV	NV/LTV	95% CI Minimum	95% CI Maximum	p Value*
Nadir PaO2, mmHg, mean ± SD	93 ± 41	79 ± 34	1.22†	1.12	1.31	<0.0001
Pneumonia, n (%)	9 (5)	125 (26)	0.24‡	0.12	0.49	0.0001
Atelectasis, n (%)	17 (10)	292 (58)	0.10‡	0.06	0.17	<0.0001
ARDS, n (%)	2 (1)	74 (15)	0.12‡	0.03	0.53	0.0046

^*p<0.05 accepted as significant.

^†Factor.

^‡Odds ratio.