Table 4 Hospitalization rates attributable to influenza and RSV according to risk status and age in the US, 1997–2009 (respiratory broad outcome, any mention)
Age | Ratea of influenza hospitalizations (SD, range) | Ratea of RSV hospitalizations (SD, range) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
A/H1N1 | A/H3N2 | B | Total | Total | ||||||||
Low risk | High risk | Low risk | High risk | Low risk | High risk | Low risk | High risk | Ratio high/ low risk | Low risk | High risk | Ratio high/low risk | |
0-4 years | 8 (9, 0-23) | 0 (0, 0-0) | 61 (43, 1-124) | 11 (9, 0-26) | 41 (29, 2-86) | 10 (8, 0-24) | 110 (30, 39-147) | 21 (10, 5-42) | 0.2 | 526 (90, 431-706) | 180 (82, 107-364) | 0.3 |
5-17 years | 3 (3, 0-9) | 3 (3, 0-9) | 8 (6, 0-17) | 4 (3, 0-8) | 8 (6, 0-15) | 3 (3, 0-7) | 19 (5, 11-29) | 10 (4, 6-16) | 0.6 | 0 (0, 0-0) | 0 (0, 0-0) | 0.0 |
18-49 years | 1 (1, 0-3) | 9 (11, 0-30) | 10 (7, 0-20) | 52 (35, 1-110) | 6 (4, 0-11) | 30 (21, 1-64) | 17 (5, 6-25) | 91 (27, 41-145) | 5.5 | 3 (0, 2-4) | 8 (1, 6-10) | 2.7 |
50-64 years | 1 (1, 0-1) | 10 (12, 0-33) | 17 (11, 0-35) | 149 (100, 3-313) | 7 (5, 0-15) | 60 (43, 2-134) | 25 (9, 7-37) | 220 (82, 76-358) | 8.9 | 5 (0, 5-6) | 52 (8, 40-70) | 9.8 |
65-74 years | 0 (0, 0-0) | 20 (25, 0-81) | 39 (26, 1-80) | 286 (192, 6-591) | 9 (6, 0-18) | 44 (32, 1-105) | 49 (23, 8-80) | 350 (163, 82-594) | 7.2 | 9 (1, 7-11) | 104 (17, 78-139) | 11.1 |
75+ years | 0 (0, 0-0) | 21 (27, 0-86) | 117 (80, 3-235) | 587 (388, 12-1198) | 40 (28, 1-80) | 161 (116, 4-380) | 157 (68, 29-238) | 769 (331, 205-1209) | 4.9 | 81 (11, 65-100) | 404 (61, 329-553) | 5.0 |
All ages | 2 (2, 0-5) | 12 (14, 0-42) | 19 (13, 0-39) | 176 (117, 4-362) | 11 (7, 0-20) | 54 (39, 2-124) | 32 (9, 11-44) | 242 (96, 74-374) | 7.7 | 49 (8, 40-65) | 91 (13, 71-119) | 1.9 |