Table 2.
Clinical characteristics and diagnoses of patients by influenza type
| Characteristics | Influenza type | P value | |
|---|---|---|---|
| A (n = 128) | B (n = 109) | ||
| Fever | 127 (99.2) | 107 (98.2) | |
|
Peak temperature, mean (SD) |
39.4 °C (0.7) |
39.3 °C (0.7) |
0.323 |
| Cough | 87 (68.0) | 80 (73.4) | 0.361 |
| Rhinorrhea | 71 (55.5) | 62 (56.9) | 0.827 |
| Sputum | 38 (29.7) | 37 (33.9) | 0.482 |
| Vomiting (nausea) | 23 (18.0) | 22 (20.2) | 0.665 |
| Seizure | 20 (15.6) | 13 (11.9) | 0.412 |
| Dyspnea | 7 (5.5) | 9 (8.3) | 0.394 |
| Diarrhea | 6 (4.7) | 5 (4.6) | 0.971 |
| Chill | 3 (2.3) | 7 (6.4) | 0.193 |
| Nasal stuffiness | 1 (0.8) | 2 (1.8) | 0.597 |
| Altered mentality | 3 (2.8) | 0.096 | |
| Rash | 1 (0.8) | 1 (0.9) | > 0.999 |
| Wheezing | 1 (0.8) | 1 (0.9) | > 0.999 |
| Conjunctival injection | 1 (0.8) | > 0.999 | |
| ≥3 yrs | n = 57 | n = 66 | |
| Sore throat | 11 (19.3) | 9 (13.6) | 0.396 |
| Headache | 7 (12.3) | 9 (13.6) | 0.824 |
| Abdominal pain | 6 (10.5) | 9 (13.6) | 0.599 |
| Myalgia | 3 (5.3) | 5 (7.6) | 0.724 |
| Arthralgia | 1 (1.5) | 0.460 | |
| Chest pain | 1 (1.5) | 0.460 | |
| Diagnosis | |||
| Sinusitis | 21 (16.4) | 17 (15.6) | 0.605 |
| Pneumonia | 8 (6.3) | 4 (3.7) | 0.367 |
| Croup | 3 (2.3) | 5 (4.6) | 0.476 |
| Bronchiolitis | 2 (1.6) | 3 (2.8) | 0.664 |
| Lymphadenitis | 2 (1.6) | 2 (1.8) | > 0.999 |
| Acute otitis media | 1 (0.8) | > 0.999 | |
| Encephalitis | 1 (0.9) | 0.460 | |
Values are presented as number (%), unless otherwise specified. SD, standard deviation