Table 2.
Stability of different mattresses during experimental resuscitation, visual analog scale (VAS)*.
| Flat hard floor | A higher specification foam mattress (HSFM) | Carital® Optima | Carital® Optima with CPR function in use | Nimbus® 3 comfort control soft, in static mode | Nimbus® 3 comfort control soft, in static mode with CPR function in use | Nimbus® 3 comfort control soft, in alternating mode | Nimbus® 3 comfort control soft, in alternating mode with CPR function in use | Nimbus® 3 comfort control hard, in static mode | Nimbus® 3 comfort control hard, in alternating mode | |
|---|---|---|---|---|---|---|---|---|---|---|
| VAS, mm (SD) | 100 (−) |
82.7 (11.2) |
71.2 (20.5) |
65.5 (21.8) |
32.7 (25.1) |
50.8a (27.9) |
40.2 (26.4) |
71.3b (22.1) |
43.8 (24.8) |
44.3 (9.7) |
| N | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 |
The stability was the lowest on Nimbus comfort control soft, in static mode compared to Carital® Optima. The estimated difference was 38.5 mm (CI 95% 11.8,65.2; p = 0.006), repeated measurement analysis of variance. When CPR function was in use on Nimbus® the differences to Carital® Optima were not significant; a) p = 0.158 and b) p = 0.989.
*
VAS where 100 mm = highest stability which was predefined for the hard flat floor and 0 mm represented the lowest stability.