Table 2.
The incidence rates of complications associated with the intramuscular injection technique.
| Nurse (n = 84) |
Dentist (n = 41) |
P-value | |
|---|---|---|---|
| Incidence of complications [%(n)] | 8.3 (7) | 2.4 (1) | 0.3 |
| Complications immediately after vaccination | |||
| Numbness in the hand or arm [%(n)] | 4.8 (4) | 2.4 (1) | 1.0 |
| Vasovagal reflex [%(n)] | 2.4 (2) | 0 (0) | 1.0 |
| Pain levels at the time of injections [points] | 3.2 ± 2.6 | 2.9 ± 2.6 | 0.5 |
| SIRVA [%(n)] | 1.2 (1) | 0 (0) | 1.0 |
| Prolonged numbness in the hand or arm [%(n)] | 0 (0) | 0 (0) | 1.0 |
Data are expressed as percentage (number) or mean ± standard deviation. Duplicate data were excluded from incidence of overall complications. Pain level at the time of the injection was measured using a numerical rating scale. SIRVA, shoulder injury related to vaccine administration.