Table 4.

Univariate and multivariate analysis of 30-days mortality

Variables	OR	95% CI	p-value
Univariate analysis of predictors of mortality
Respiratory care, HFNC	0.175	0.036–0.860	0.032
Age, ≧ 75	2.095	0.506–8.674	0.31
Sex, male	0.267	0.043–1.653	0.16
Cause of interstitial lung disease, AE of IPF	0.364	0.087–1.526	0.17
PaO2/FIO2 ratio, < 100	8.000	0.812–78.825	0.075
APACHE II score, ≧ 20	0.857	0.148–5.064	0.86
LDH, IU/L, ≧ 280	4.308	0.424–43.733	0.22
KL-6, U/mL, ≧ 1000	0.984	0.245–3.958	0.98
Multivariate analysis of predictors of mortality
Respiratory care, HFNC	0.148	0.025–0.880	0.036
PaO2/FIO2 ratio, < 100	10.072	0.806–125.896	0.073

See Table 1 legend for expansion of abbreviations.