2012-2013 Estimated Influenza Illnesses, Medical Visits, Hospitalizations, and Deaths Averted by Vaccination in the United States
CDC estimates that influenza vaccination during the 2012-2013 influenza season prevented 5.5 million illnesses, 2.7 million medical visits, 60,000 hospitalizations and 3,700 deaths associated with influenza (Table: Estimated Number of Influenza Illnesses, Medical Visits, Hospitalizations, and Deaths Averted by Vaccination, 2010-11 through 2017-18 Influenza Seasons).
Table 1: Estimated Number of Influenza Illnesses, Medical Visits, Hospitalizations, and Deaths Averted by Vaccination, by Age Group — United States, 2012-2013 influenza season
|
Averted Illnesses |
Averted Medical Visits |
Averted Hospitalizations |
Averted Deaths |
| Age group |
Estimate |
95% UI* |
Estimate |
95% UI* |
Estimate |
95% UI* |
Estimate |
95% UI* |
|
6 mo-4 yrs
|
846,840 |
(495,470, 2,021,954) |
567,383 |
(338,055, 1,333,743) |
5,904 |
(3,454, 14,096) |
69 |
(14, 241) |
|
5-17 yrs
|
1,565,044 |
(1,047,638, 2,375,756) |
813,823 |
(565,085, 1,209,220) |
4,291 |
(2,873, 6,514) |
203 |
(89, 453) |
|
18-49 yrs
|
1,304,456 |
(696,107, 3,818,704) |
482,649 |
(264,255, 1,381,664) |
7,322 |
(3,907, 21,434) |
237 |
(104, 803) |
|
50-64 yrs
|
1,514,121 |
(779,639, 4,310,262) |
651,072 |
(345,403, 1,832,669) |
16,057 |
(8,268, 45,709) |
799 |
(369, 2,623) |
|
65+ yrs
|
285,765 |
(0, 2,672,392) |
160,028 |
(0, 1,414,495) |
25,979 |
(0, 242,945) |
2,388 |
(0, 23,550) |
|
All ages
|
5,516,225 |
(3,722,987, 11,420,558) |
2,674,954 |
(1,869,589, 5,317,044) |
59,552 |
(23,128, 291,701) |
3,696 |
(850, 25,433) |
*Uncertainty Interval
Table 2: Estimated Fraction of Influenza Hospitalizations Averted by Vaccination by age group — United States, 2012-2013 influenza season
| Age group |
Estimate |
95% UI* |
|
6 mo-4 yrs
|
29 |
(23, 36) |
|
5-17 yrs
|
22 |
(17, 27) |
|
18-49 yrs
|
13 |
(10, 16) |
|
50-64 yrs
|
19 |
(15, 23) |
|
65+ yrs
|
7 |
(0. 30) |
*Uncertainty Interval
