. 2012 Mar 1;2(2):e000545. doi: 10.1136/bmjopen-2011-000545

Table 4.

Univariate Cox regression analysis of variables potentially associated with mortality at day 180 in patients with ARDS

Variable	p Value	HR (95% CI)
HRCT score	0.0019	1.22^* (1.08 to 1.38)
Age	0.5411	0.99 (0.96 to 1.02)
Sepsis	0.4020	1.34 (0.67 to 2.67)
APACHE II score	0.6578	0.98 (0.92 to 1.06)
SOFA score	0.1724	0.92 (0.82 to 1.04)
McCabe score	0.9609	0.98 (0.41 to 2.32)
PaO₂/FiO₂ ratio	0.6119	1.00 (0.99 to 1.01)
Serum albumin	0.0982	0.57 (0.30 to 1.11)

Expressed as mortality change per 10% increase in area of attenuation with traction bronchiectasis on high-resolution CT.

APACHE II, acute physiology and chronic health evaluation II; ARDS, acute respiratory distress syndrome; HRCT, high-resolution CT; SOFA, sequential organ failure assessment.