TABLE 1.
Demographic Characteristics and Underlying Medical Conditions Among Hospitalized Children Aged <18 Years Identified Through the COVID-NET, March 2020 to May 2021
| Characteristic | Total (N = 2293) | Infants and Children Aged <2 y (n = 745) | Children Aged 2–17 y (n = 1548) | |||
|---|---|---|---|---|---|---|
| No. | % | No. | % | No. | % | |
| Age, median and IQRa | 7 | 1–14 | 2 | 1–11 | 12 | 7–16 |
| Age group | ||||||
| <6 mo | 450 | 19.6 | 450 | 60.4 | — | — |
| 6–23 mo | 295 | 12.9 | 295 | 39.6 | — | — |
| 2–4 y | 249 | 10.9 | — | — | 249 | 16.1 |
| 5–11 y | 470 | 20.5 | — | — | 470 | 30.4 |
| 12–17 y | 829 | 36.2 | — | — | 829 | 53.6 |
| Sex | ||||||
| Male | 1224 | 53.4 | 409 | 54.9 | 815 | 52.7 |
| Female | 1069 | 46.6 | 336 | 45.1 | 733 | 47.4 |
| Race and ethnicity | ||||||
| Hispanic | 773 | 33.7 | 267 | 35.8 | 506 | 32.7 |
| NH Black | 737 | 32.1 | 192 | 25.8 | 545 | 35.2 |
| NH White | 525 | 22.9 | 181 | 24.3 | 344 | 22.2 |
| NH Asian or Pacific Islander | 118 | 5.2 | 53 | 7.1 | 65 | 4.2 |
| NH otherb | 140 | 6.1 | 52 | 7.0 | 88 | 5.7 |
| Residential type | ||||||
| Private residencec | 2240 | 97.7 | 717 | 96.2 | 1523 | 98.4 |
| Congregate setting, other or unknownd | 53 | 2.3 | 28 | 3.8 | 25 | 1.6 |
| Hospitalized since birth | 25 | 1.1 | 25 | 3.4 | 0 | 0.0 |
| Underlying medical conditions | ||||||
| ≥1 underlying medical conditions | 1262 | 55.0 | 214 | 28.7 | 1048 | 67.7 |
| Obesitye | 478 | 20.9 | — | — | 478 | 30.9 |
| Chronic lung disease | 468 | 20.4 | 38 | 5.1 | 430 | 27.8 |
| Asthma | 373 | 16.3 | 13 | 1.7 | 360 | 23.3 |
| Neurologic disorder | 348 | 15.2 | 49 | 6.6 | 299 | 19.3 |
| Developmental delay | 218 | 9.5 | 30 | 4.0 | 188 | 12.1 |
| Cardiovascular disease | 146 | 6.4 | 57 | 7.7 | 89 | 5.8 |
| Congenital heart disease | 94 | 4.1 | 44 | 5.9 | 50 | 3.2 |
| Blood disorder | 142 | 6.2 | 21 | 2.8 | 121 | 7.8 |
| Sickle cell | 102 | 4.5 | 16 | 2.2 | 86 | 5.6 |
| Chronic metabolic disease | 136 | 5.9 | 8 | 1.1 | 128 | 8.3 |
| Diabetes mellitus (type I or II) | 89 | 3.9 | 1 | 0.1 | 88 | 5.7 |
| Immunocompromised condition | 129 | 5.6 | 7 | 0.9 | 122 | 7.9 |
| Feeding tube dependent | 114 | 5.0 | 33 | 4.4 | 81 | 5.2 |
| Prematurityf | 100 | 4.4 | 100 | 13.4 | — | — |
| Airway abnormality | 58 | 2.5 | 24 | 3.2 | 34 | 2.2 |
| Renal disease | 46 | 2.0 | 9 | 1.2 | 37 | 2.4 |
| Liver disease | 41 | 1.8 | 6 | 0.8 | 35 | 2.3 |
| Rheumatologic, autoimmune, inflammatory condition | 14 | 0.6 | 0 | 0.0 | 14 | 0.9 |
| Other | 133 | 5.8 | 36 | 4.8 | 97 | 6.3 |
| Discharge diagnosis of MIS-C | 198 | 8.6 | 15 | 2.0 | 183 | 11.8 |
| Outcomes | ||||||
| ICU admission or invasive mechanical ventilation | 691 | 30.1 | 164 | 22.0 | 527 | 34.0 |
| Invasive mechanical ventilation | 122 | 5.3 | 34 | 4.6 | 88 | 5.7 |
| In-hospital deaths | 12 | 0.5 | 4 | 0.5 | 8 | 0.5 |
NH, non-Hispanic; —, not applicable.
Reported in months for children aged <2 y and in years for all other age groups.
Includes NH American Indian or Alaska Native (n = 20; 0.9%), NH multiple races (n = 25; 1.1%), or unknown (n = 95; 4.1%).
Includes private residence or home with services.
Includes hospitalized since birth, group home or retirement, homeless shelter, psychiatric facility, facility, long-term acute-care hospital, corrections facility, other, and unknown.
Children aged 2 to 17 y were classified as having obesity if they had BMI (kg/m2) ≥95th percentile for age and sex on the basis of CDC growth charts, ICD-10 codes for obesity in the electronic medical record, or obesity selected on the case report form.
Gestational age <37 wk at birth among children aged <2 y.