Table 3 Characteristic analysis on M. pneumoniae cases during epidemic and post-epidemic. Data were represented as n (%) in total cases, and as n (positivity, %) in M. pneumoniae cases
Characteristic | Epidemic | Post-epidemic | ||||
|---|---|---|---|---|---|---|
Total | M. pneumoniae cases | P value | Total | M. pneumoniae cases | P value | |
Age, median (IQR) | 9 (30) | 11 (20) | Â | 39 (58) | 10 (19) | Â |
 Children | 2534 (63.4) | 604 (23.8) | <  0.001 | 1449 (37.8) | 182 (12.6) | < 0.001 |
 Adults | 1464 (36.6) | 267 (18.2) | 2388 (62.2) | 74 (3.1) | ||
Gender | Â | Â | 0.145 | Â | Â | 0.102 |
 Female | 1889 (47.2) | 431 (22.8) |  | 1625 (42.4) | 121 (7.4) |  |
 Male | 2109 (52.8) | 440 (20.9) |  | 2212 (57.6) | 135 (6.1) |  |
Sample types | Â | Â | 0.39 | Â | Â | < 0.001 |
 Oropharyngeal swab | 3265 (81.7) | 705 (21.6) |  | 1931 (50.3) | 178 (9.2) |  |
 Sputum | 675 (16.9) | 151 (22.4) |  | 1615 (42.1) | 74 (4.6) |  |
 Balf a | 54 (1.4) | 15 (27.8) |  | 278 (7.2) | 4 (1.4) |  |
 Others | 4 (0.1) | 0 (0) |  | 13 (0.4) | 0 (0) |  |
Site of care | Â | Â | 0.581 | Â | Â | < 0.001 |
 Outpatients | 2041 (51.1) | 431 (21.1) |  | 1386 (36.1) | 100 (7.2) |  |
 Wards | 1807 (45.2) | 426 (23.6) |  | 1964 (51.2) | 156 (7.9) |  |
 RICU and EICU | 96 (2.4) | 11 (11.5) |  | 261 (6.8) | 0 (0) |  |
 Other ICUs | 54 (1.4) | 3 (5.6) |  | 226 (5.9) | 0 (0) |  |