Table 1.
Adverse events following influenza immunisation reported by pregnant and non-pregnant women – FASTMum, Western Australia, Australia, 19 March-15 May 2014
| Pregnant (n = 947) | Non-pregnant (n = 275) | Fisher’s exact test p-value | AOR p-value | |||
|---|---|---|---|---|---|---|
| n | Percent (95% CI) | n | Percent (95% CI) | |||
| Any reaction** | 141 | 13.0 (11.0-15.0) | 51 | 17.5 (13.1-21.8) | .19 | .33 |
| Systemic reaction | 85 | 9.0 (7.1-10.8) | 28 | 10.2 (6.6-13.8) | .55 | .36 |
| Fever | 15 | 1.6 (0.8-2.4) | 16 | 5.8 (3.0-8.6) | <.01* | <.01* |
| Headache | 27 | 2.9 (1.8-3.9) | 13 | 4.7 (2.2-7.3) | <.01* | .04* |
| Fatigue | 40 | 4.2 (2.9-5.5) | 13 | 4.7 (2.2-7.3) | .74 | .68 |
| Vomiting | 7 | 0.7 (0.2-1.3) | 0 | (0.0-0.7) | .36 | .95 |
| Rigors | 5 | 0.5 (0.1-1.0) | 2 | 0.7 (0.0-1.7) | .66 | .89 |
| Cold/flu-like | 37 | 3.9 (2.7-5.1) | 10 | 3.6 (1.4-5.9) | .50 | .69 |
| Myalgia | 11 | 1.2 (0.5-1.8) | 5 | 1.8 (0.2-3.4) | .37 | .71 |
| Nausea | 8 | 0.8 (0.3-1.4) | 1 | 0.4 (0.0-1.1) | .69 | .59 |
| Malaise | 4 | 0.4 (0.0-0.8) | 1 | 0.4 (0.0-1.1) | .69 | .51 |
| Local reaction | 45 | 4.8 (3.4-6.1) | 20 | 7.3 (4.2-10.4) | .13 | .13 |
| Other reaction | 6 | 0.6 (0.1-1.1) | 2 | 0.7 (0.0-1.7) | .57 | .89 |
**Any reaction was defined as replying “yes” to the question “did you experience any fever, illness, or reaction following your vaccination?”.
*Significant at α = .05.
AOR, adjusted odds ratio – adjusted for age and residence (metropolitan/non-metropolitan).
CI, confidence interval.