Table 2.
Symptomatic influenza cases per 100,000 population by peak month and by age group in ages 65 and up *.
| Season Peak | Age 65–74 Years | Age 75–84 Years | Age 85 and up | Overall: Age 65 and up |
|---|---|---|---|---|
| December | ||||
| One dose | 4006 (3787, 4259) |
2394 (2251, 2511) |
1568 (1398, 1729) |
3010 (2860, 3156) |
| Two doses | 3936 (3745, 3931) |
2375 (2215, 2508) |
1542 (1381, 1717) |
2962 (2849, 3116) |
| January | ||||
| One dose | 4221 (4024, 4416) |
2477 (2337, 2689) |
1585 (1449, 1789) |
3144 (3021, 3293) |
| Two doses | 3985 (3791, 4191) |
2373 (2193, 2548) |
1523 (1398, 1701) |
2985 (2836, 3108) |
| February | ||||
| One dose | 3932 (3629, 4190) |
2215 (1956, 2326) |
1391 (1220, 1608) |
2880 (2644, 3094) |
| Two doses | 3312 (2850, 3670) |
1938 (1648, 2165) |
1242 (1033, 1422) |
2465 (2104, 2735) |
| March | ||||
| One dose | 2751 (2194, 3305) |
1493 (1099, 1804) |
916 (686, 1132) |
1985 (1577, 2382) |
| Two doses | 2190 (1691, 2617) |
1249 (942, 1519) |
793 (587, 1024) |
1613 (1242, 1931) |
* Mean and 95% confidence interval over 100 simulations.