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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

From: Comparison of the prevalence of respiratory viruses in patients with acute respiratory infections at different hospital settings in North China, 2012–2015

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
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