Movement (mm)
| Vacuum mattress | Backboard | p Value | 95% CI | |
|---|---|---|---|---|
| Head | ||||
| Head up | 3.33 (0–15) | 18.88 (5–35) | <0.01 | 8.25 to 22.86 |
| Head down | 9.44 (0–30) | 39.66 (10–85) | <0.01 | 10.47 to 48.86 |
| Lateral tilt | 3.88 (0–15) | 8.88 (0–15) | =0.16 | 2.44 to 12.22 |
| Chest | ||||
| Head up | 7.77 (0–30) | 30.44 (15–45) | <0.01 | 15.35 to 29.98 |
| Head down | 5.55 (0–20) | 42.22 (20–75) | <0.01 | 23.08 to 50.25 |
| Lateral tilt | 6.66 (0–25) | 27.22 (0–40) | <0.01 | 8.18 to 32.93 |
| Pelvis | ||||
| Head up | 8.88 (0–25) | 20.55 (0–35) | =0.06 | 0.63 to 23.97 |
| Head down | 9.44 (0–25) | 40.77 (10–95) | <0.01 | 13.31 to 49.36 |
| Lateral tilt | 2.22 (0–10) | 18.88 (0–50) | =0.03 | 1.41 to 31.92 |