Figure 4From: Nebulized heparin is associated with fewer days of mechanical ventilation in critically ill patients: a randomized controlled trialForest plot of the treatment effect of nebulized heparin on ventilator-free days among survivors at day 28 by baseline characteristics. The microbiological tests included culture of pulmonary lavage fluid and polymerase chain reaction for H1NI. CI, confidence interval.Back to article page