Table 4

Multiple logistic regression of variables associated with the risk of experiencing an adverse event

95% CI
Variable*Waldp ValueExp (B)LowHigh
Number of comorbid conditions8.8790.0031.151.051.26
IADL score†8.6940.0031.541.162.04
C statistic=0.672 (95% CI 0.613 to 0.732)
Goodness of fit: p=0.659
  • *Variables tested were age, sex, number of comorbid conditions, number of medications, length of stay, ADL score, IADL score, communication, mood and cognitive problems.

  • †IADL, instrumental activities of daily living. Score ranged from 1 (independent) to 4 (dependent).