Table 2

Multivariable logistic regression analysis of factors associated with long LOS (highest quartile, ≥16 days)

VariableOR for long LOS95% CIP value
Delirium4.811.59 to 14.470.005
Any (non-delirium) complication*5.962.09 to 16.970.001
  • Frailty was included in an earlier multivariable analysis (as was not strongly associated with delirium (correlation coefficient 0.44), as per the a priori statistical plan, but excluded from the final model as it did not meet statistical significance.

  • *From selected in-hospital complications (see text).

  • LOS, length of stay.