Table 2
Total number of inpatients with severe influenza complications by department and hospital type among 16 636 913 Japanese influenza cases between 2012 and 2016
| Category | Inpatients | Acute respiratory failure | Pneumonia | ARDS | Febrile seizure | Encephalitis/encephalopathy |
| n | 164 394 | 3361 | 27 253 | 18 | 2603 | 159 |
| Clinical department, n (%) | ||||||
| Internal medicine | 23 722 (14.4) | 682 (20.3) | 3633 (13.3) | 6 | 23 (0.9) | 57 (35.8) |
| Paediatrics | 47 138 (28.7) | 1794 (53.4) | 19 012 (69.8) | 2 | 2461 (94.5) | 63 (39.6) |
| Otorhinolaryngology | 12 825 (7.8) | 43 (1.3) | 217 (0.8) | 0 | 2 (0.1) | 0 |
| Orthopaedics | 7158 (4.4) | 43 (1.3) | 338 (1.2) | 0 | 6 (0.2) | 0 |
| Dermatology | 1100 (0.7) | 3 (0.1) | 45 (0.2) | 0 | 0 | 0 |
| Surgery | 17 138 (10.4) | 189 (5.6) | 720 (2.6) | 3 | 18 (0.7) | 0 |
| Ophthalmology | 2302 (1.4) | 0 | 23 (0.1) | 0 | 1 (0.04) | 0 |
| Obstetrics and gynaecology | 15 155 (9.2) | 88 (2.6) | 330 (1.2) | 0 | 0 | 0 |
| Psychiatry | 2486 (1.5) | 28 (0.8) | 197 (0.7) | 0 | 8 (0.3) | 37 (23.3) |
| Others or not specified | 35 370 (21.5) | 486 (14.5) | 2738 (10.0) | 0 | 84 (3.2) | 2 (1.3) |
| Hospital beds, n (%) | ||||||
| 0–19 | 16 843 (10.2) | 167 (5.0) | 805 (3.0) | 0 | 18 (0.7) | 0 |
| 20–99 | 10 202 (6.2) | 106 (3.2) | 913 (3.4) | 3 | 36 (1.4) | 0 |
| 100–199 | 12 661 (7.7) | 308 (9.2) | 2394 (8.8) | 0 | 147 (5.6) | 0 |
| 200–299 | 15 701 (9.6) | 358 (10.7) | 2933 (10.8) | 7 | 220 (8.5) | 26 (16.4) |
| 300–499 | 40 753 (24.8) | 922 (27.5) | 9179 (33.7) | 0 | 1003 (38.5) | 57 (35.8) |
| 500+ | 68 234 (41.5) | 1500 (44.7) | 11 029 (40.5) | 8 | 1179 (45.3) | 76 (47.8) |
| Hospital type, n (%) | ||||||
| Clinic | 16 817 (10.2) | 167 (5.0) | 805 (3.0) | 0 | 18 (0.7) | 0 |
| National or municipal hospital | 48 243 (29.3) | 985 (29.4) | 10 995 (40.3) | 10 | 1314 (50.5) | 82 (51.6) |
| University hospital | 21 898 (13.3) | 285 (8.5) | 2049 (7.5) | 0 | 162 (6.2) | 34 (21.4) |
| Other hospital | 77 185 (47.0) | 1919 (57.2) | 13 404 (49.2) | 8 | 1109 (42.6) | 43 (27.0) |
| Not specified | 251 (0.2) | 5 (0.1) | 0 | 0 | 0 | 0 |
ARDS, acute respiratory distress syndrome.
Vol 14 Issue 4
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