Table 1 The baseline characteristics of patients
From: Routine blood parameters are helpful for early identification of influenza infection in children
A+ group (n = 388) | B+ group (n = 169) | A- /B- group (n = 198) | H group (n = 259) | χ2/H | P | ||
|---|---|---|---|---|---|---|---|
< 1 year old | Males | 11 | 1 | 12 | 21 | 0.384 | 0.825 |
Females | 7 | 2 | 7 | 17 | |||
Mean age (y) | 0.8 (0.5–0.8) | 0.6 ± 0.2 | 0.7 (0.6–0.9) | 0.6 (0.5–0.8) | 2.146 | 0.342 | |
1–6 years old | Males | 98 | 24 | 49 | 62 | 1.218 | 0.749 |
Females | 95 | 29 | 53 | 54 | |||
Mean age (y) | 3.7 (2.4–4.8) | 4.0 (3.1–4.9) | 3.4 (2.4–4.6) | 3.4 (2.4–5.1) | 3.740 | 0.291 | |
> 6 years old | Males | 104 | 53 | 33 | 57 | 2.415 | 0.060 |
Females | 73 | 60 | 44 | 48 | |||
Mean age (y) | 8.6 (7.2–11.8) | 7.9 (7.1–9.8) | 8.6 (6.8–11.7) | 9.4 (7.5–11.5) | 6.531 | 0.088 | |