Table 1.
Comparative analysis of the epidemiology of ARI in Western China before and after COVID-19
| Variable | Number (%) of acute respiratory infections | χ2 | P-value | ||
|---|---|---|---|---|---|
| 2010-2019 | 2020 | ||||
| Gender | Male | 7319 (60.67) | 455 (61.40) | 0.158 | 0.691 |
| Female | 4745 (39.33) | 286 (38.60) | |||
| Age | <5 | 3613 (29.95) | 273 (36.84) | 29.06 | <0.001 |
| 5-14 | 2550 (21.14) | 161 (21.73) | |||
| 15-59 | 3462 (28.70) | 150 (20.24) | |||
| ≥60 | 2439 (20.22) | 157 (21.19) | |||
| Season | Spring | 2543 (21.08) | 208 (28.07) | 40.47 | <0.001 |
| Summer | 2465 (20.43) | 117 (15.79) | |||
| Autumn | 3454 (28.63) | 247 (33.33) | |||
| Winter | 3602 (29.86) | 169 (22.81) | |||
| Consultations | Outpatient | 5292 (43.87) | 295 (39.81) | 4.667 | 0.031 |
| Inpatient | 6772 (56.13) | 446 (60.19) | |||
| Viral infection | Positive | 2760 (22.88) | 165 (22.27) | 0.148 | 0.701 |
| Negative | 9304 (77.12) | 576 (77.73) | |||
| Bacterial infection | Positive | 1286 (10.66) | 19 (2.56) | 49.99 | <0.001 |
| Negative | 10778 (89.34) | 722 (97.44) | |||
| Viral and bacterial co-infections | Positive | 366 (3.03) | 3 (0.40) | 17.241 | <0.001 |
| Negative | 11698 (96.97) | 738 (99.60) | |||