Skip to main content
Annals of Intensive Care
Fig. 5 | Annals of Intensive Care

Fig. 5

From: Trends in ICU mortality and underlying risk over three decades among mechanically ventilated patients. A group level analysis of cohorts from infection prevention studies

Fig. 5

Scatter plot and linear regression of ICU mortality [mortality censured at day 21 or less] incidence versus group mean APACHE II score for groups from studies of infection prevention interventions. The linear regression line in each plot, derived using the observational groups, increased versus year of study publication (slope is + 0.7 percentage points per APACHE II score point; 95% confidence interval + 0.2 to + 1.2; p = 0.003) and serves as a benchmark for all plots. Note the y-axis is a logit scale [symbols; filled triangle = non-concurrent control groups; filled square = groups receiving PPAP; open circle = all other groups; NCC groups appear as observational groups]. The same plot showing each individual group traceable to the original study is shown in Additional file 1: Fig. S6. An equivalent plot showing the trend for late mortality versus group mean APACHE II score is shown in the Additional file 1: Fig. S7

Back to article page