Table 3.

Unadjusted and adjusted logistic analyses of VD/VT and mortality on days 4, 5 and 6.

	Day 4			Day 5			Day 6
OR	95% CI	p	OR	95% CI	p	OR	95% CI	p
Unadjusted model
VD/VT	3.06	1.77–5.3	0.000	3.23	1.82–5.61	0.000	5.37	1.83–15.69	0.002
Adjusted model
VD/VT	2.82	1.35–5.88	0.006	3.02	1.63–5.29	0.028	5.52	1.16–26.22	0.031
PaO2/FiO2	0.98	0.97–1	0.044	0.97	0.96–1.00	0.034	0.97	0.94–1.003	0.037
Age	1.08	1.01–1.16	0.025	1.07	0.98–1.16	0.086	1.07	0.99–1.16	0.087
APACHE II score	2.18	1.19–3.98	0.011	2.23	1.15–4.08	0.013	2.55	1.09–5.94	0.03