Table 2

Hazard ratio's for delirium or mild confusion.

Factor

P

HR

95%CI for HR

Earplugs

0.008

0.47

0.27-0.82

SOFA (per point increase)

0.024

1.09

1.01-1.17

Age (per year increase)

0.02

1.03

1.01-1.05

Smoking

0.014

1.87

1.10-3.51

The model is significant at P = 0.02. The use of earplugs was corrected for all patient characteristics and risk factors mentioned in Table 1. CI, confidence interval; HR, Hazard Ratio; SOFA, Sepsis-related Organ Failure Assessment.

Van Rompaey et al. Critical Care 2012 16:R73   doi:10.1186/cc11330