Table 2.

Mean Blood Pressure (mm Hg): Mean ± Standard Error

ProneSupineRoutine Nurses’
First measurement47.0  ± 0.849.1  ± 1.054.4  ± 1.4
Second measurement45.6  ± 0.948.1  ± 1.0
Third measurement44.4  ± 0.746.3  ± 0.9