Table 1. Demographic and clinical characteristics of hemodialysis patients with or without influenza A (H1N1) infection.
| Infected patients | Non-infected patients | p-value | |
|---|---|---|---|
| (N=12) | (N=50) | ||
| Age (years); median (range) | 68.5 (58–78.7) | 70 (57.5–83.5) | 0.82 |
| Male gender | 10 (83.3) | 36 (72) | 0.71 |
| HD vintage (months) | 27.3 ± 24.5 | 36.9 ± 30.4 | 0.29 |
| Dialysis modality | 0.30 | ||
| Conventional | 10 (83.3) | 32 (64) | |
| Intensified | 2 (16.7) | 18 (36) | |
| Comorbidities | |||
| Diabetes mellitus | 7 (58.3) | 19 (38) | 0.33 |
| Obesity | 5 (41.6) | 2 (4) | 0.002 |
| Heart disease | 7 (58.3) | 22 (44) | 0.52 |
| Chronic lung disease | 1(8.3) | 4 (8) | 0.99 |
| Malignancy | 2 (16.7) | 2 (4) | 0.17 |
| Immunosuppression | 2 (16.7) | 5 (10) | 0.61 |
| Leukocytes (103/mm3) | 6.7 ± 2.2 | 6.6 ± 2.1 | 0.85 |
| Lymphocytes (103/mm3) | 1.0 ± 0.3 | 1.4 ± 0.4 | 0.007 |
| CRP (mg/dL) | 2.8 ± 3.0 | 0.6 ± 0.6 | 0.029 |
| Serum albumin (g/dL) | 3.7 ± 0.3 | 3.9 ± 0.3 | 0.029 |
| Vaccinated in previous year | 9 (75) | 38 (76) | NS |
| (2014-2015 vaccine) | |||
| Duration of antiviral therapy (days) | 5 ± 2 | - | - |
| Hospital rate | 3 (25) | - | - |
| Length of hospital stay (days) | 4 ± 0 | - | - |
Continuous variables are reported as mean (±SD). Categorical variable are reported as number (%). NS: non-significant