Table 2.
Average seasonal burden of hospitalization attributable to influenza and RSV in the US, 1997–2009
| Influenza | RSV | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| A/H1N1 | A/H3N2 | B | Total | Total | ||||||
| Number(SD, range) | Ratea (SD, range) | Number(SD, range) | Ratea(SD, range) | Number(SD, range) | Ratea (SD, range) | Number(SD, range) | Ratea (SD, range) | Number (SD, range) | Ratea(SD, range) | |
| Any mention (primary and secondary diagnoses) | ||||||||||
| Pneumonia and influenza | 5575 (6413, 10-17224) | 2 (2, 0-6) | 109605 (73305, 2180-226479) | 38 (25, 1-77) | 36044 (25264, 1197-76387) | 12 (9, 0-25) | 151224 (60184, 42931-231692) | 52 (21, 14-78) | 83826 (9886, 68685-99838) | 29 (4, 23-37) |
| Respiratory broad | 23778 (27583, 49-77994) | 8 (9, 0-26) | 184995 (125020, 3750-392352) | 64 (43, 1-134) | 88775 (62416, 2882-188309) | 30 (21, 1-62) | 297548 (95106, 123077-473027) | 102 (32, 40-156) | 186155 (20695, 151326-218476) | 64 (9, 51-81) |
| Respiratory | 22701 (26366, 47-74814) | 8 (9, 0-25) | 178546 (120620, 3607-378232) | 62 (42, 1-129) | 84185 (59163, 2754-178530) | 29 (20, 1-59) | 285432 (91614, 117032-452653) | 98 (30, 38-149) | 181200 (20786, 146674-214110) | 63 (9, 50-79) |
| Cardiorespiratory | 63731 (74696, 128-212553) | 22 (25, 0-71) | 173091 (119477, 3570-374648) | 60 (41, 1-128) | 113390 (79442, 3723-232055) | 39 (27, 1-76) | 350212 (90982, 210388-551170) | 120 (29, 69-181) | 226017 (25505, 183666-260765) | 78 (10, 62-96) |
| Sepsis | 3071 (3632, 6-10653) | 1 (1, 0-4) | 7336 (4808, 143-14870) | 3 (2, 0-5) | 6152 (4456, 205-14955) | 2 (1, 0-5) | 16559 (5924, 9799-31729) | 6 (2, 3-10) | 7514 (1796, 6105-11918) | 3 (1, 2-4) |
| Primary diagnosis | ||||||||||
| Pneumonia and influenza | 3322 (3832, 6-9965) | 1 (1, 0-3) | 75032 (51807, 1617-153996) | 26 (18, 1-53) | 21270 (15053, 830-42436) | 7 (5, 0-15) | 99624 (41556, 20428-155443) | 35 (15, 7-53) | 56790 (10033, 46316-77900) | 20 (4, 16-29) |
| Respiratory broad | 7176 (8166, 17-20050) | 2 (3, 0-7) | 134641 (91445, 2859-276542) | 47 (32, 1-94) | 48978 (34449, 1775-94178) | 17 (12, 1-33) | 190795 (71208, 52036-279807) | 66 (25, 17-96) | 152034 (23947, 122280-193118) | 53 (10, 41-71) |
| Respiratory | 6712 (7632, 15-18922) | 2 (3, 0-6) | 131188 (89045, 2778-269087) | 46 (31, 1-92) | 47105 (33111, 1711-90828) | 16 (11, 1-32) | 185005 (69695, 50038-272219) | 64 (24, 16-93) | 149307 (23197, 119731-188735) | 52 (10, 41-70) |
| Cardiorespiratory | 30603 (35872, 59-97842) | 10 (12, 0-32) | 140248 (97272, 3049-292807) | 49 (34, 1-100) | 59983 (42372, 2196-118559) | 21 (15, 1-42) | 230834 (58467, 94469-310270) | 80 (20, 31-102) | 142301 (23945, 111992-184119) | 49 (10, 38-68) |
| Sepsis | 1075 (1316, 2-3824) | 0 (0, 0-1) | 2692 (1726, 47-4949) | 1 (1, 0-2) | 3537 (2873, 106-10486) | 1 (1, 0-3) | 7304 (3540, 3471-17020) | 2 (1, 1-6) | 2526 (877, 1716-4614) | 1 (0, 1-2) |
SD interseasonal standard deviation, RSV respiratory syncytial virus
aAnnual mean rate per 100,000 population