Table 2

Movement (mm)

Vacuum mattressBackboardp Value95% CI
Head
    Head up3.33 (0–15)18.88 (5–35)<0.018.25 to 22.86
    Head down9.44 (0–30)39.66 (10–85)<0.0110.47 to 48.86
    Lateral tilt3.88 (0–15)8.88 (0–15)=0.162.44 to 12.22
Chest
    Head up7.77 (0–30)30.44 (15–45)<0.0115.35 to 29.98
    Head down5.55 (0–20)42.22 (20–75)<0.0123.08 to 50.25
    Lateral tilt6.66 (0–25)27.22 (0–40)<0.018.18 to 32.93
Pelvis
    Head up8.88 (0–25)20.55 (0–35)=0.060.63 to 23.97
    Head down9.44 (0–25)40.77 (10–95)<0.0113.31 to 49.36
    Lateral tilt2.22 (0–10)18.88 (0–50)=0.031.41 to 31.92