Figure 4.
Scatterplots between preenrollment static respiratory system compliance, preenrollment plateau pressures, and preenrollment tidal volume. (A) Scatterplot between preenrollment plateau pressure (cm H2O) and static respiratory system compliance (ml/cm H2O by kg predicted body weight [PBW]) shows a reciprocal [compliance ∝ (1/plateau pressure)] relationship between preenrollment static respiratory system compliance and preenrollment plateau pressure. (B) Scatterplot between preenrollment tidal volume (ml/ kg PBW) and preenrollment plateau pressure. No obvious relationship is apparent. (C) Scatterplot between preenrollment tidal volume and static respiratory system compliance. Again, no obvious relationship is apparent.