Volume 17, Number 9—September 2011
Dispatch
Increased Extent of and Risk Factors for Pandemic (H1N1) 2009 and Seasonal Influenza among Children, Israel
Table 2
Comparison of children hospitalized at Hadassah University Hospitals, Israel, during pandemic (H1N1) 2009 and during influenza seasons for 2005–2009*
| Parameter | Pandemic (H1N1) 2009 | Seasonal influenza | p value |
|---|---|---|---|
| No. patients during 1 season | 127 | Median 20 (range 18–39)† | NA |
| Children with influenza A/B | 127/0 | 68/28 | NA |
| Duration of hospitalization, wks | 34 | Median 16 (range 13–22) | NA |
| No. (%) children who received antiviral treatment | 98/127 (77.2) | 0/96 | <0.001 |
| Patient age, mo, median (range) | 51 (0.23–197.00) | 6 (0.3–206.0) | <0.001 |
| No. (%) children with underlying chronic diseases | 66 (52.0) | 24 (25.0) | <0.001 |
| No. (%) children with underlying chronic lung disease | 39/127 (30.7) | 14 (14.6) | 0.007 |
| No. (%) children with neonatal fever as initial symptom | 6/127(4.7) | 26 (27.1) | <0.001 |
*NA, not applicable.
†Total for all 4 years = 96.


