Variable | Influenza (n = 526) | Dengue (n = 148) | Other febrile illnesses (n = 175) | P a | P b |
---|---|---|---|---|---|
Mean age (± SD), years | 13.6 ± 13.5 | 45.1 ± 4.5 | 15.3 ± 15.9 | <0.001 | 0.941 |
Age group (n, [%]) | Â | Â | Â | Â | Â |
≤ 18 years | 445 (84.6) | 24 (16.2) | 130 (74.3) | - | - |
>18 years | 81 (15.4) | 124 (83.8) | 45 (25.7) | - | - |
Male gender (n, [%]) | 315 (59.9) | 83 (56.1) | 106 (60.6) | 0.406 | 0.873 |
Underlying conditionc (n, [%]) | Â | Â | Â | Â | Â |
Bronchial asthma | 14 (26.7) | 0 | 5 (2.9) | - | - |
Diabetes mellitus | 10 (1.9) | 17 (11.5) | 2 (1.1) | - | - |
Hypertension | 15 (2.8) | 30 (20.3) | 2 (1.1) | - | - |
Influenza A virus subtype (n, [%]) | Â | Â | Â | Â | Â |
Pandemic 2009 H1N1 | 447 (85) | - | - | - | - |
Seasonal H3N2 | 79 (15) | - | - | - | - |
Dengue disease severity (n, [%]) | Â | Â | Â | Â | Â |
Dengue without warning signs | - | 64 (43.2) | - | - | - |
Dengue with warning signs | - | 77 (52) | - | - | - |
Severe dengue | - | 7 (4.7) | - | - | - |
Dengue virus serotypes (n/N, [%]) | Â | Â | Â | Â | Â |
Serotype I | - | 10/40 (25) | - | - | - |
Serotype II | - | 17/40 (42.5) | - | - | - |
Serotype III | - | 12/40 (30) | - | - | - |
Serotype IV | - | 1/40 (2.5) | - | - | - |
Mean interval from onset of symptoms to emergency room presentation, days (± SD) | 1.7 ± 1.2 | 3.7 ± 1.8 | 3.0 ± 2.1 | - | - |
Mean fever duration, days (± SD) | 2.8 ± 1.6 | 4.0 ± 2.3 | ND | <0.001 | - |
Use of oseltamivir >48 h (n/N, [%]) | 107/364 (29.4) | - | - | - | - |
Fatalities (n, [%]) | 5 (0.9) | 0 | 0 | 0.234 | 0.196 |