| Total person-years | Influenza A | Influenza B | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Number of events | Crude | Age-standardized | Number of events | Crude | Age-standardized | ||||||
Rate | 95% CI | Rate | 95% CI | Rate | 95% CI | Rate | 95% CI | ||||
Overall | 18,559,978 | 1,404 | 7.6 | 7.2 - 8.0 | 7.2 | 6.5 - 7.9 | 445 | 2.4 | 2.2 - 2.6 | 2.2 | 1.5 - 3.0 |
Age group (years) | Â | Â | Â | Â | Â | Â | Â | Â | |||
<=1 | 478,951 | 323 | 67.4 | 60.5-75.2 | Â | Â | 94 | 19.6 | 16.0-24.0 | Â | Â |
2 to 4 | 741,193 | 68 | 9.2 | 7.2-11.6 | Â | Â | 32 | 4.3 | 3.1-6.1 | Â | Â |
5 to 9 | 1,292,298 | 58 | 4.5 | 3.5-5.8 | Â | Â | 46 | 3.6 | 2.7-4.8 | Â | Â |
10 to 14 | 1,333,125 | 62 | 4.7 | 3.6-6.0 | Â | Â | 64 | 4.8 | 3.8-6.1 | Â | Â |
15 to 24 | 2,581,745 | 68 | 2.6 | 2.1-3.3 | Â | Â | 41 | 1.6 | 1.2-2.2 | Â | Â |
25 to 44 | 5,379,985 | 142 | 2.6 | 2.2-3.1 | Â | Â | 57 | 1.1 | 0.8-1.4 | Â | Â |
45 to 64 | 4,227,965 | 115 | 2.7 | 2.3-3.3 | Â | Â | 31 | 0.7 | 0.5-1.0 | Â | Â |
65 to 74 | 1,290,068 | 66 | 5.1 | 4.0-6.5 | Â | Â | 7 | 0.5 | 0.3-1.1 | Â | Â |
75+ | 1,234,648 | 502 | 40.7 | 37.3-44.4 | Â | Â | 73 | 5.9 | 4.7-7.4 | Â | Â |
Sex | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Female | 9,412,486 | 758 | 8.1 | 7.5 - 8.6 | 7.4 | 6.3 - 8.4 | 245 | 2.6 | 2.3 - 3.0 | 2.4 | 1.4 - 3.5 |
Male | 9,147,492 | 646 | 7.1 | 6.5 - 7.6 | 6.8 | 5.8 - 7.9 | 200 | 2.2 | 1.9 - 2.5 | 1.9 | 0.9 - 3.0 |
Locality of residence | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | |
Rural | 7,268,040 | 604 | 8.3 | 7.7 - 9.0 | 7.7 | 6.5 - 8.9 | 240 | 3.3 | 2.9 - 3.7 | 2.9 | 1.7 - 4.1 |
Urban | 11,291,938 | 800 | 7.1 | 6.6 - 7.6 | 6.9 | 5.9 - 7.8 | 205 | 1.8 | 1.6 - 2.1 | 1.7 | 0.8 - 2.7 |
Area of residence | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | |
North | 1,138,287 | 126 | 11.1 | 9.3 - 13.2 | 8.4 | 5.1 - 11.6 | 42 | 3.7 | 2.7 - 5.0 | 2.3 | 0.3 - 7.1 |
South | 17,421,691 | 1,278 | 7.3 | 6.9 - 7.7 | 7.0 | 6.2 - 7.8 | 403 | 2.3 | 2.1 - 2.6 | 2.2 | 1.4 - 2.9 |
Income quintiles | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | |
Q1 (lowest) | 3,704,516 | 385 | 10.4 | 9.4 - 11.5 | 8.7 | 7.0 - 10.3 | 108 | 2.9 | 2.4 - 3.5 | 2.3 | 0.6 - 4.0 |
Q2 | 3,838,620 | 249 | 6.5 | 5.7 - 7.3 | 5.9 | 4.3 - 7.5 | 74 | 1.9 | 1.5 - 2.4 | 1.8 | 0.7 - 4.7 |
Q3 | 3,722,216 | 225 | 6.0 | 5.3 - 6.9 | 5.7 | 4.0 - 7.3 | 108 | 2.9 | 2.4 - 3.5 | 2.8 | 1.1 - 4.4 |
Q4 | 3,707,649 | 160 | 4.3 | 3.7 - 5.0 | 4.3 | 2.7 - 6.0 | 60 | 1.6 | 1.3 - 2.1 | 1.5 | 0.6 - 5.0 |
Q5 (highest) | 3,315,922 | 135 | 4.1 | 3.4 - 4.8 | 4.4 | 2.6 - 6.1 | 48 | 1.4 | 1.1 - 1.9 | 1.3 | 0.4 - 5.7 |
Unknown | 271,055 | 250 | 92.2 | 81.5 - 104.4 | 59.7 | 53.1 - 66.4 | 47 | 17.3 | 13.0 - 23.1 | 13.9 | 0.4 - 6.1 |