Reinstitution of Mechanical Ventilation within 14 Days as a Poor Predictor in Prolonged Mechanical Ventilation Patients following Successful Weaning

Table 2

Prognostic factors of 1-year mortality in prolonged mechanical ventilation patients with successful weaning by univariate and multivariate analyses.

Variables		P
Age (year)	<70 versus ≥70	0.04
Gender (M/F)	Male versus female	0.66
Transfer origin	MICU versus SICU	0.16
Tracheostomy	Yes versus no	0.50
Coma	Yes versus no	0.34
Stay duration in RCC (D)	<21 versus ≥21	0.13
MV duration (D)	<50 versus ≥50	0.80
RSBI	<105 versus ≥105	0.49
APACHE II scores	<25 versus ≥25	0.55
the reinstitution date	Within 14 days versus beyond	<0.001*
Underlying disease
Diabetes mellitus	Yes versus no	0.65
Hypertension	Yes versus no	0.81
RIFLE-LE∧	Yes versus no	0.02
Stroke	Yes versus no	0.28
Liver cirrhosis	Yes versus no	0.89
COPD (%)	Yes versus no	0.50

∗Cox proportional hazards regression model, 𝑃<0.001; 95% CI = 1.64–4.51; HR = 2.72.
∧Classification of renal diseases by the RIFLE criteria (acronym indicating risk of renal dysfunction, injury to the kidney, failure of kidney function, loss of kidney function, and end-stage kidney disease).