Table 1.
Epidemiologic characteristics of respiratory virus detection among hospitalized children with ARIs from 2018 to 2022
| 2018–2019 | 2020–2022 | χ2 value | P value | |
|---|---|---|---|---|
| (n = 5021) | (n = 4761) | |||
| Characteristics, n(%) | ||||
| Age | ||||
| 0~<1y | 2688 (53.53) | 2311 (48.54) | 24.400 | 0.000 |
| 1~<3y | 1223 (24.36) | 1256 (26.38) | 5.288 | 0.021 |
| 3~<7y | 989 (19.70) | 1036 (21.76) | 6.335 | 0.012 |
| 7~<14y | 121 (2.41) | 158 (3.32) | 7.284 | 0.007 |
| Gender | ||||
| Male | 2948 (58.70) | 2799 (58.8) | 0.006 | 0.939 |
| Female | 2073 (41.30) | 1962 (41.2) | ||
| Detection of viruses, n(%) | ||||
| ADV | 36 (0.72) | 14 (0.29) | 8.678 | 0.003 |
| RSV | 471 (9.38) | 621 (13.04) | 33.061 | 0.000 |
| Flu A | 56 (1.12) | 54 (1.13) | 0.008 | 0.929 |
| Flu B | 35 (0.70) | 13 (0.27) | 8.998 | 0.003 |
| PIV-1 | 33 (0.66) | 22 (0.46) | 1.665 | 0.197 |
| PIV-2 | 31 (0.62) | 5 (0.11) | 21.674 | 0.000 |
| PIV-3 | 159 (3.17) | 83 (1.74) | 20.520 | 0.000 |
| Total | 821 (16.35) | 812 (17.06) | 0.871 | 0.035 |
| Mixed virus-positive specimens | ||||
| ADV + PIV-2 | 1 (0.02) | 0 (0.00) | 0.948 | 0.330 |
| ADV + PIV-3 | 1 (0.02) | 0 (0.00) | 0.948 | 0.330 |
| RSV + PIV-1 | 1 (0.02) | 1 (0.02) | 0.001 | 0.970 |
| RSV + PIV-3 | 1 (0.02) | 4 (0.08) | 1.965 | 0.161 |
| PIV-2 + PIV-3 | 1 (0.02) | 0 (0.00) | 0.948 | 0.330 |
| PIV-1 + PIV-3 | 1 (0.02) | 0 (0.00) | 0.948 | 0.330 |
| Total | 6 (0.12) | 5 (0.10) | 0.046 | 0.831 |
| Total | 827 (16.47) | 817 (17.16) | 0.831 | 0.362 |