Composite scores of SIBs tested sorted by a priori category pass and %CV
| A priori categories | Minimum delivered tidal volume* (a) | Batch test variance (n)† (b) | High PIP fail‡ (c) | Start distance§ (d) | Category pass/fail |
| Model (n=units) Part no Type RU/SU | Mean volume¶ | % CV mean of distances¶ | % of inflations>45 cm H2O | mm | a, b, c, d |
| 1. Laerdal (10) 845031 SU | 4.9 | 7.0 | 0.7 | 25 | ✓✓✓✓ |
| 2. Portex (9) 8527MPB SU | 4.1 | 7.7 | 0 | 25 | ✓✓✓✓ |
| 3. Galemed (10) SHMC 2203 SU | 3.9 | 8.6 | 0 | 25 | ✓✓✓✓ |
| 4. Vital signs (10) 7902R SU | 3.2 | 9.0 | 0 | 20 | ✓✓✓✓ |
| 5. Laerdal (10) 8560533 Vertical RU | 3.8 | 9.0 | 0 | 20 | ✓✓✓✓ |
| 6. Laerdal (10) 850050 RU | 3.1 | 9.3 | 0 | 20 | ✓✓✓✓ |
| 7. Ambu (10) SPUR II SU | 2.5 | 10.2 | 0 | 15 | ✓✓✓✓ |
| 8. Portex (9) 8528M SU | 3.2 | 11.0 | 0 | 25 | ✓✓✓✓ |
| 9. Portex (9) 8527MP SU | 3.2 | 12.3 | 0 | 25 | ✓✓✓✓ |
| 10. Headstar (10) HP9333FN SU | 4.0 | 20.5 | 0.1 | 25 | ✓✓✓✓ |
| 11. Besmed (11) BE-1703 SU | 3.1 | 9.7 | 7.1 | 20 | ✓✓✗✓ |
| 12. Mercury (4) 1055299 SU | 3.6 | 10.7 | 6.4 | 20 | ✓✓✗✓ |
| 13. Hsiner (10) PH60103 SU | 3.1 | 12.2 | 7.7 | 20 | ✓✓✗✓ |
| 14. Hsiner (7) 60152 SU | 3.2 | 15.3 | 4.6 | 20 | ✓✓✗✓ |
| 15. Hsiner (10) 60 113 P SU | 2.9 | 48.9 | 0 | 30 | ✓✗✓✓ |
| 16. Hudson RCI (9) 5364 SU | 8.8 | 7.1 | 0 | 40 | ✗✓✓✗ |
| 17. Besmed (10) BE-2701 SU | 2.7 | 34.2 | 0 | 40 | ✓✗✓✗ |
| 18. Hsiner (5) 60113 SU | 3.4 | 46.4 | 2.9 | 30 | ✓✗✗✓ |
| 19. Zeal (5) RSB 1001 RU | 2.5 | 47.3 | 3.7 | 30 | ✓✗✗✓ |
| 20. Meditrin (5) Infant 250 mL RU | 6.3 | 37.2 | 0 | 40 | ✗✗✓✗ |
↵*Pass criteria; deliver minimum usable volume of 2.5–5 mL.
↵†Pass criteria; average CV of delivered volume <30% (all distances).
↵‡Pass criteria; <1% of inflations>45 cm H2O.
↵§Pass criteria; average start distance 50% (≤30 mm) of total compression distance.
¶Tidal volumes and CV all significantly different ANOVA repeated measures, p<0.001.
ANOVA, analysis of variance; CV, coefficient of variation; RU, reusable; SIB, self-inflating bags; SU, single use.