TABLE 2.
Demographic Characteristics of Children Who Died With Influenza and Had Neurologic Disorders Compared With Children Without a High-Risk Condition, United States, 2009–2010
| Characteristic | Any Neurologic Disorder (N = 146) | No High-Risk Conditions (n = 109) | P a |
|---|---|---|---|
| Male | 75 (51) | 49 (45) | .3 |
| Race | .1 | ||
| White | 102/131 (78) | 66/94 (70) | |
| Black | 22/131 (17) | 16/94 (17) | |
| Asian | 5/131 (4) | 4/94 (4) | |
| Native Hawaiian/Pacific Islander | 1/131(<1) | 1/94 (1) | |
| American Indian/Alaska Native | 1/131(<1) | 7/94 (7) | |
| Ethnicity | .7 | ||
| Hispanic | 45/136 (33) | 26/86 (30) | |
| Non-Hispanic | 91/136 (67) | 60/86 (70) | |
| Age groups | .3 | ||
| 0–5 mo | 7/146 (5) | 13/109 (12) | |
| 6–23 mo | 15/146 (10) | 13/109 (12) | |
| 24–59 mo | 16/146 (11) | 10/109 (9) | |
| 5–8 y | 26/146 (18) | 23/109 (21) | |
| 9–12 y | 35/146 (24) | 24/109 (22) | |
| 13–17 y | 47/146 (32) | 26/109 (24) | |
| Age, y | 10 (0–17) | 8 (0–17) | .02 |
| Time from onset to death,b d | 8 (0–141) | 4 (0–125) | <.01 |
| Time from hospital admission to death,c median (range), d | 7 (0–122) | 1 (0–125) | <.01 |
| Location of death | |||
| Emergency department or at home or in transit to hospital | 29/144 (20) | 46/108 (43) | <.01 |
| Hospital, admitted | 115/144 (80) | 62/108 (57) | |
| Influenza vaccination statusd | |||
| Recommended for vaccination by using 2008 and 2009 ACIP criteria | 139/146 (95) | 96/109 (88) | .04 |
| Seasonal influenza vaccine | 21/92 (23) | 7/58 (12) | .1 |
| Monovalent 2009 influenza A (H1N1) vaccine | 2/73 (3) | 0/51 (0) | .5 |
Data are presented as n (%) or median (range).
Based on Wilcoxon rank sum test for continuous variables and χ2 or Fisher’s exact test for categorical variables.
Illness onset date was known for 141 children with neurologic disorders and 106 children without high-risk conditions.
Of those children who died in the hospital, the hospital admission date was known for 94 children with neurologic disorders and for 53 children without high-risk conditions.
Children aged ≥6 months were considered fully vaccinated when documentation on the case report form indicated that they had received the influenza vaccine in the appropriate number of doses at least 14 days before illness onset.