Edel injection (partie 2.1)
- 4. Results (7) – Overall - univariate
Cases Controls
P*
N=49 (%) N=101 (%)
Needle licked 21 (41.2) 23 (23.5) 0.02
Dirty hit after injection 30 (61.2) 36 (36.0) 0.0004
Cigarette filter removed
with teeth 28 (68.3) 29 (36.3) 0.001
Dissolving in sterile cupule 25 (54.3) 64 (66.7) 0.2
Filter re-used 20 (45.5) 31 (33.0) 0.15
* ×2 test