Table 3.
Clinical symptoms and socioeconomic outcomes of influenza‐positive vaccinated and unvaccinated patients in Japan 2008–2009
| Vaccinated (n = 28) | Unvaccinated (n = 42) | OR (95% CI) | P‐value | |
|---|---|---|---|---|
| Clinical symptoms | ||||
| Coryza and/or nasal congestion | 23 (82·1%) | 30 (71·4%) | 1·84 (0·57–5·96) | 0·31 |
| Cough | 26 (92·9%) | 41 (97·6%) | 0·32 (0·03–3·68) | 0·56 |
| Headache | 17 (60·7%) | 28 (66·7%) | 0·77 (0·29–2·09) | 0·61 |
| Loss of appetite | 19 (67·9%) | 28 (66·7%) | 1·06 (0·38–2·93) | 0·92 |
| Myalgia | 15 (53·6%) | 27 (64·3%) | 0·64 (0·24–1·70) | 0·37 |
| Sore throat | 18 (64·3%) | 32 (76·2%) | 0·56 (0·20–1·61) | 0·28 |
| Feeling of weakness | 10 (35·7%) | 13 (31·0%) | 1·24 (0·45–3·41) | 0·68 |
| Duration of feeling of weakness (days) | 8·1 ± 6·7 | 5·2 ± 4·4 | 1·62 (0·69–3·82) | 0·27 |
| Total duration of illness (days) | 18·6 ± 3·2 | 19·3 ± 3·6 | 0·32 (0·02–4·60) | 0·41 |
| Socioeconomic outcomes | ||||
| Absence from work | 14 (50·0%) | 21 (50·0%) | 1·00 (0·38–2·60) | 1·000 |
| Days absent (average) | 3·3 | 2·9 | 1·49 (0·45–4·94) | 0·52 |
| Impact on daily activity | 24 (85·7%) | 39 (92·9%) | 0·46 (0·09–2·24) | 0·43 |
| Days of reduced activity (average) | 5·5 | 4·9 | 1·15 (0·69–1·94) | 0·59 |
| Caregiver absence from work | 2 (7·1%) | 2 (4·8%) | 1·54 (0·20–11·61) | 1·00 |
| Days absent (average) | 1·5 | 5·5 | – | 0·13 |