Table 4

Sensitivity analysis: adjusted measures of association based on full cohort

OR (95% CI)P value
Empyema1.35 (0.58 to 3.16)0.49
Pneumonia1.54 (0.97 to 2.46)0.07
Death0.9 (0.45 to 1.81)0.78
Pneumonia or death1.31 (0.76 to 2.25)0.32
Clostridium difficile colitis0.58 (0.24 to 1.41)0.23
Rate ratio (95% CI)P value
ICULOS1.34 (1.17 to 1.54)<0.0001
Hospital LOS1.14 (1.05 to 1.23)0.0019
Ventilation days1.33 (1.01 to 1.75)0.042
  • Adjusted estimates of marginal ORs and rate ratios based on generalized estimating equations fitted on the full cohort, with each trauma center treated as a cluster. CIs and p values were based on the robust SE.

  • ICULOS, intensive care unit length of stay.