Table 2 Frequency of respiratory viruses single infection and co-infection among patients with ARIs in North China, 2012–2015, by age group and hospital settings
Age in years | Single virus infection (n = 3072) | P-value | Co-infection of viruses (n = 756) | P-value | Total (n = 3828) | P-value | |||
|---|---|---|---|---|---|---|---|---|---|
Outpatient/ED, No. (%) | Hospitalized, No. (%) | Outpatient/ED, No. (%) | Hospitalized, No. (%) | Outpatient/ED, No. (%) | Hospitalized, No. (%) | ||||
0–1 | 105 (38.6) | 278 (37.5) | 0.77 | 23 (8.5) | 261 (35.2) | < 0.001 | 128 (47.1) | 539 (72.6) | < 0.001 |
2–4 | 179 (34.5) | 148 (31.9) | 0.416 | 27 (5.2) | 70 (15.1) | < 0.001 | 206 (39.7) | 218 (47.0) | 0.024 |
5–14 | 245 (32.2) | 209 (24.6) | < 0.001 | 44 (5.8) | 53 (6.2) | 0.753 | 289 (38.0) | 262 (30.8) | 0.003 |
15–34 | 896 (32.6) | 66 (20.4) | < 0.001 | 123 (4.5) | 31 (9.6) | < 0.001 | 1019 (37.1) | 97 (29.9) | 0.012 |
35–64 | 604 (34.8) | 85 (16.8) | < 0.001 | 71 (4.1) | 30 (5.9) | 0.088 | 675 (38.9) | 115 (22.8) | < 0.001 |
65+ | 131 (32.3) | 126 (20.9) | < 0.001 | 11 (2.7) | 12 (2.0) | 0.521 | 142 (35.1) | 138 (22.9) | < 0.001 |
Total | 2160 (33.6) | 912 (26.2) | < 0.001 | 299 (4.6) | 457 (13.1) | < 0.001 | 2459 (38.2) | 1369 (39.3) | 0.31 |