Table 1.
Number of glass particles per ampule (n = 180)
| Group | Number | χ 2 | p | ||
|---|---|---|---|---|---|
| Mean ± SD | Median | Range | |||
| 1 (n = 45) | 114.87 ± 89.26 | 78.00 | 17–419 | 0.647 | 0.886 |
| 2 (n = 45) | 118.02 ± 90.60 | 87.00 | 15–410 | ||
| 3 (n = 45) | 110.47 ± 81.58 | 85.00 | 16–338 | ||
| 4 (n = 45) | 89.38 ± 48.35 | 80.00 | 18–220 | ||
| Total | 108.18 ± 79.45 | 83.50 | 15–419 | ||
Group 1 IV bolus injection directly after immediate aspiration, Group 2 IV bolus injection directly after 2 min’ delayed aspiration, Group 3 IV bolus injection directly after aspiration with a filter needle syringe and Group 4 Side shooting to an infusion set with an in-line filter