Table 2 Underlying medical conditions of deceased patients with a laboratory-confirmed influenza A(H1N1)2009 virus infection, the Netherlands 2009-2011 (n = 103)
Pandemic season 2009-2010 N = 65 | Influenza season 2010-2011 N = 38 | ||||
|---|---|---|---|---|---|
Underlying medical condition* | n | (%) | n | (%) | p |
None** | 10 | (15) | 10 | (26) | 0.3 |
Respiratory disorder | 22 | (34) | 7 | (18) | 0.1 |
Immunological disorder# | 23 | (35) | 5 | (13) | 0.02 |
Neurological disorder | 9 | (14) | 4 | (10) | 0.9 |
Intellectual disability## | 8 | (12) | 2 | (5) | 0.4 |
Cardiovascular disorders | 5 | (8) | 12 | (32) | 0.005 |
Kidney/liver disorders | 4 | (6) | 3 | (8) | 0.9 |
Malignancies### | 2 | (3) | 3 | (8) | 0.5 |
Metabolic disorders | 1 | (2) | 3 | (8) | 0.3 |
Multiple underlying disorders | 17 | (26) | 10 | (26) | > 0.9 |