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Table 2 Distribution of influenza virus infection by demographic characteristics, Central African Republic, 2010–2015

From: Sentinel surveillance of influenza-like illness in the Central African Republic, 2010–2015

Demographic characteristic Influenza cases n (%) P Influenza virus identified n (%) Pa
Negative Positive A/H1N1pdm09 A/H3N2 B A/H1N1pdm09 + B A/H3N2 + B
Sex
 Male 2363 (91.3) 224 (8.7) 0.441 35 (15.6) 88 (39.3) 99 (44.2) - 2 (0.9) 0.9329
 Female 2572 (91.9) 226 (8.1)   40 (17.7) 86 (38.0) 98 (43.4) 1 (0.4) 1 (1.4)  
Age
 0 to <6 months 871 (91.2) 84 (8.8) 0.02 15 (17.8) 24 (28.6) 45 (53.6) - - 0.0359
 6 months to <1 year 620 (92.9) 47 (7.1)   7 (14.9) 16 (34.0) 24 (51.1) - -  
 1 to <2 years 329 (94.2) 20 (5.7)   0 (0.0) 8 (40.0) 11 (55.0) - 1 (5.0)  
 2 to <5 years 1228 (92.0) 106 (7.9)   22 (20.7) 34 (32.1) 50 (47.2) - -  
 5 to <15 years 841 (92.1) 72 (7.9)   12 (16.6) 38 (52.8) 21(29.2) 1 (1.4) -  
 15 to <50 years 906 (89.0) 112 (11.0)   15 (13.4) 53 (47.3) 42 (37.5) - 2 (1.8)  
 50 to <65 years 126 (93.3) 9 (6.7)   4 (44.5) 1 (1.0) 4 (44.5) - -  
 ≥ 65 years 15 (100) 0 (0.0)   - - - - -  
Sentinel site
 Bangui 2670 (90.8) 269 (9.1) < 0.001 45 (16.7) 100 (37.2) 123 (45.7) 1 (0.4) - 0.0268
 Boali 547 (88.5) 71 (11.5)   17 (23.9) 23 (32.4) 28 (39.4) - 3 (4.2)  
 Bossembele 815 (95.2) 41 (4.8)   7 (17.1) 10 (24.4) 24 (58.5) - -  
 Pissa 812 (93.3) 58 (6.7)   5 (8.6) 32 (55.2) 21 (36.2) - -  
 Sibut 93 (89.4) 11 (10.6)   1 (9.1) 9 (81.8) 1 (9.1) - -  
Total 4935 (91.6) 450 (8.4)   75 (16.7) 174 (38.7) 197 (43.7) 1 (0.2) 3 (0.7)  
  1. a comparison of proportion of influenza A and influenza B according to demographic characteristics