Table 5 Characteristics of subjects hospitalized with laboratory-confirmed influenza
Characteristic | Valencia, Spain | St. Petersburg, Russia | Moscow, Russia | Turkey | France |
|---|---|---|---|---|---|
Age | N = 236 | N = 652 | N = 471 | N = 36 | N = 150 |
<18 y | 50 (21.2) | 375 (57.5) | 79 (16.8) | 9 (25.0) | - |
18 - 64 y | 53 (22.5) | 259 (39.7) | 374 (79.4) | 18 (50.0) | 67 (44.7) |
≥65 y | 133 (56.4) | 18 (2.8) | 18 (3.8) | 9 (25.0) | 83 (55.3) |
Sex | N = 236 | N = 652 | N = 471 | N = 36 | N = 150 |
Male | 124 (52.5) | 347 (53.2) | 151 (32.1) | 22 (61.1) | 69 (46.0) |
Female | 112 (47.5) | 305 (46.8) | 320 (67.9) | 14 (38.9) | 81 (54.0) |
Pregnanta | 1 (0.9) | 1 (0.3) | 242 (75.6) | 1 (7.1) | 4 (4.9) |
Number of comorbidities | N = 236 | N = 652 | N = 471 | N = 36 | N = 150 |
0 | 97 (41.1) | 587 (90.0) | 383 (81.3) | 8 (22.2) | 36 (24.0) |
1 | 69 (29.2) | 46 (7.1) | 70 (14.9) | 14 (38.9) | 52 (34.7) |
≥2 | 70 (29.7) | 19 (2.9) | 16 (3.4) | 14 (38.9) | 62 (41.3) |
Chronic conditions | N = 236 | N = 652 | N = 471 | N = 36 | N = 150 |
Cardiovascular disease | 54 (22.9) | 48 (7.4) | 40 (8.5) | 15 (41.7) | 49 (32.7) |
Respiratory disease | 77 (32.7) | 17 (2.6) | 23 (4.9) | 10 (27.8) | 61 (40.7) |
Diabetes | 56 (23.7) | 12 (1.8) | 4 (0.9) | 7 (19.4) | 33 (22.2) |
Immunodeficiency | 7 (3.0) | 0 (0.0) | 0 (0.0) | 7 (19.4) | 14 (9.3) |
Renal impairment | 18 (7.6) | 1 (0.2) | 18 (3.8) | 5 (13.9) | 18 (12.0) |
Rheumatologic disease | 4 (1.7) | 0 (0.0) | 0 (0.0) | 3 (8.3) | 17 (11.3) |
Neuromuscular disease | 12 (5.1) | 0 (0.0) | 4 (0.9) | 5 (13.9) | 6 (4.0) |
Cirrhosis | 9 (3.8) | 3 (0.5) | 10 (2.1) | 2 (5.6) | 1 (0.7) |
Neoplasm | 5 (2.1) | 4 (0.6) | 6 (1.3) | 8 (22.2) | 18 (12.0) |
Vaccinated 2012-2013 | N = 236 | N = 652 | N = 471 | N = 36 | N = 150 |
Yes | 82 (34.8) | 11 (1.7) | 6 (1.3) | 5 (13.9) | 50 (33.3) |
No | 154 (65.3) | 641 (98.3) | 465 (98.7) | 31 (86.1) | 100 (66.7) |
Outcome | N = 236 | N = 652 | N = 471 | N = 36 | N = 150 |
ICU admission | 4 (1.7) | 3 (0.5) | 2 (0.4) | 11 (30.6) | - |
Death | 5 (2.1) | 0 (0.0) | 0 (0.0) | 7 (19.4) | 4 (2.7) |