Burden Estimates for the 2013-2014 Influenza Season
The overall burden of influenza for the 2013-2014 season was an estimated 30 million influenza illnesses, 13 million influenza-associated medical visits, 347,000 influenza-related hospitalizations, and 38,000 flu-associated deaths (Table: Estimated Influenza Disease Burden, by Season — United States, 2010-11 through 2017-18 Influenza Seasons).
Estimated influenza disease burden, by age group — United States, 2013-2014 influenza season
|
Symptomatic Illnesses |
Medical Visits |
Hospitalizations |
Deaths |
| Age group |
Estimate |
95% Cr I |
Estimate |
95% Cr I |
Estimate |
95% Cr I |
Estimate |
95% Cr I |
| 0-4 yrs |
2,525,568 |
(2,193,604, 2,950,196) |
1,692,131 |
(1,426,310, 2,024,015) |
17,607 |
(15,293, 20,567) |
74 |
(0, 216) |
| 5-17 yrs |
3,983,742 |
(3,433,463, 4,695,861) |
2,071,546 |
(1,725,701, 2,506,930) |
10,923 |
(9,414, 12,876) |
56 |
(0, 240) |
| 18-49 yrs |
13,038,323 |
(11,459,968, 15,201,283) |
4,824,179 |
(3,999,013, 5,949,705) |
73,184 |
(64,325, 85,325) |
3,422 |
(2,419, 5,330) |
| 50-64 yrs |
8,484,977 |
(7,462,475, 9,864,079) |
3,648,540 |
(3,013,667, 4,473,016) |
89,981 |
(79,137, 104,606) |
5,964 |
(4,405, 8,935) |
| 65+ yrs |
1,707,384 |
(1,494,059, 2,039,988) |
956,135 |
(795,414, 1,191,320) |
155,217 |
(135,824, 185,453) |
28,414 |
(23,222, 39,030) |
| All ages |
29,739,994 |
(27,857,029, 32,700,078) |
13,192,531 |
(12,102,484, 14,799,134) |
346,912 |
(324,890, 385,289) |
37,930 |
(33,023, 49,640) |
Estimated rates of influenza-associated disease outcomes, per 100,000, by age group — United States, 2013-2014 influenza season
|
Illness rate |
Medical visit rate |
Hospitalization rate |
Mortality rate |
| Age group |
Estimate |
95% Cr I |
Estimate |
95% Cr I |
Estimate |
95% Cr I |
Estimate |
95% Cr I |
| 0-4 yrs |
12,711.7 |
(11,040.8, 14,848.9) |
8,516.8 |
(7,178.9, 10,187.3) |
88.6 |
(77.0, 103.5) |
0.4 |
(0.0, 1.1) |
| 5-17 yrs |
7,416.1 |
( 6,391.7, 8,741.7) |
3,856.4 |
(3,212.5, 4,666.9) |
20.3 |
(17.5, 24.0) |
0.1 |
(0.0, 0.4) |
| 18-49 yrs |
9,589.6 |
( 8,428.7, 11,180.4) |
3,548.1 |
(2,941.2, 4,376.0) |
53.8 |
(47.3, 62.8) |
2.5 |
(1.8, 3.9) |
| 50-64 yrs |
13,712.9 |
(12,060.4, 15,941.8) |
5,896.6 |
(4,870.5, 7,229.0) |
145.4 |
(127.9, 169.1) |
9.6 |
(7.1, 14.4) |
| 65+ yrs |
3,819.3 |
( 3,342.1, 4,563.3) |
2,138.8 |
(1,779.3, 2,664.9) |
347.2 |
(303.8, 414.8) |
63.6 |
(51.9, 87.3) |
