TABLE 2.
Characteristics of patients with or without an increase in influenza A viral RNA load after day 3a
| Clinical characteristic | Results for increasing group (n = 9) | Results for no increasing group (n = 3) |
|---|---|---|
| Subtype | ||
| H1N1 pdm09 | 3 | 1 |
| H3N2 | 6 | 2 |
| Age (yr)b | 2.1 ± 1.5 (1.3, 0.6–4.8) | 3.1 ± 0.3 (3.0, 2.8–3.5) |
| No. of males | 4 | 2 |
| No. of vaccinationsc | 2 | 1 |
| Time after onsetb | 14.3 ± 8.3 (18.0, 5.0–26.5) | 18.8 ± 25.3 (5.5, 3.0–48.0) |
| Body temp (°C)b | 39.7 ± 0.5 (39.8, 39.0–40.2) | 39.9 ± 0.4 (39.9, 39.6–40.3) |
| Duration of fever (h)b | 24.8 ± 11.9 (25.0, 11.5–43.0) | 38.7 ± 4.5 (40.5, 33.5–42.0) |
a
There was no statistically significant difference in clinical characteristics between the groups. The Mann-Whitney U test was used to analyze age, hours after onset, body temperature, and duration of fever; Fisher's exact test was used to analyze sex and vaccination for comparisons between each group.
b
Data are mean ± SD (median, range).
c
Influenza vaccines were received prior to each influenza season.