Table 1 Characteristics of pediatric patients hospitalized for influenza infection
Variables | Cases, n, (%) |
|---|---|
Total influenza cases | 125,470 |
Age, years (median) | 5 (IQR: 2–11) |
Female | 57,055 (45.7%) |
Race | |
White | 49,405 (47.7%) |
Black | 20,821 (20.1%) |
Hispanic | 23,371 (22.6%) |
Others | 9907 (9.6%) |
Year | |
2003 | 27,503 (21.9%) |
2006 | 11,702 (9.3%) |
2009 | 54,487 (43.4%) |
2012 | 13,849 (11.0%) |
2016 | 17,929 (14.3%) |
Discharge quarter | |
Jan-Mar | 36,903 (29.4%) |
Apr-Jun | 15,719 (12.5%) |
Jul-Sep | 10,232 (8.2%) |
Oct-Dec | 62,542 (49.9%) |
CHDb | 2174 (1.73%) |
Severe CHD | 613 (0.5%) |
Non-severe CHD | 1561 (1.2%) |
Comorbid conditions | |
Asthma | 34,931 (27.8%) |
Congenital respiratory anomalies | 815 (0.7%) |
Congenital musculoskeletal anomalies | 1326 (1.1%) |
Chromosomal anomalies | 2362 (1.9%) |
Complications | |
Respiratory failure | 6714 (5.4%) |
Acute kidney injury | 1534 (1.2%) |
Invasive mechanical ventilation (IMV) | 5791 (4.6%) |
Non-invasive mechanical ventilation (NIMV) | 1943 (1.5%) |
Myocarditis | 199 (0.2%) |
Tachyarrhythmias | 514 (0.5%) |
Heart block/conduction disorders | 312 (0.3%) |
Sudden cardiac arrest | 250 (0.2%) |
ECMOa | 211 (0.2%) |
In-hospital mortality | 687 (0.54%) |