Table 1.
Characteristics of sampled patients with bronchiolitis not receiving any supplemental oxygen or nasal cannula flow.
| Variable | Observations, n (%) | |
|---|---|---|
| Patient Demographics | ||
| Age | ||
| 8 weeks through 5 months | 1742 | (48%) |
| 6 months through 11 months | 1001 | (28%) |
| 12 months through 17 months | 560 | (16%) |
| 18 months through 23 months | 309 | (9%) |
| Gestational age | ||
| Preterm (28 0/7 to 33 6/7 weeks documented in chart) | 361 | (10%) |
| Not preterma | 3251 | (90%) |
| Sex | ||
| Male | 2125 | (59%) |
| Female | 1485 | (41%) |
| Not specified | 2 | (<1%) |
| Raceb | ||
| White | 2,034 | (56%) |
| Black or African American | 553 | (15%) |
| Specified as “Other” | 500 | (14%) |
| Specified as “Unknown” | 279 | (8%) |
| Asian | 144 | (4%) |
| More than one race | 56 | (2%) |
| Native Hawaiian or Pacific Islander | 30 | (1%) |
| American Indian or Alaska Native | 16 | (<1%) |
| Ethnicityb | ||
| Not Hispanic or Latino | 2454 | (68%) |
| Hispanic or Latino | 766 | (21%) |
| Unknown | 259 | (7%) |
| Other | 133 | (4%) |
| Illness characteristics at time of observation | ||
| Time since weaning from supplemental oxygen or flow | ||
| Never received | 1190 | (33%) |
| Off < 1 hr | 80 | (2%) |
| Off 1 - < 2 hrs | 148 | (4%) |
| Off 2 - < 4 hrs | 244 | (7%) |
| Off 4 - < 6 hrs | 234 | (6%) |
| Off 6 - < 12 hrs | 505 | (14%) |
| Off 12 - < 24 hrs | 687 | (19%) |
| Off 24 hrs + | 499 | (14%) |
| Unknown | 25 | (<1%) |
| Prior intensive care unit stay during present hospitalization | 884 | (24%) |
| Apnea or cyanosisc | 235 | (7%) |
| Comorbid condition associated with neurologic impairmentd | 93 | (3%) |
| Enteral feeding tube in place (nasogastric or gastrostomy) | 305 | (8%) |
| Hospital typee | ||
| Freestanding (n=33) | 2667 | (74%) |
| Children’s hospital within hospital (n=14) | 591 | (16%) |
| Community (n=9) | 354 | (10%) |
| Time of day observation performed | ||
| Day (10AM - 5PM) | 2073 | (57%) |
| Night (11PM - 7AM) | 1539 | (43%) |
Note: For some variables, the sum of percentages does not equal 100% due to rounding.
Not preterm included the following: documented gestational age 34 0/7 weeks and above, or absence of gestational age but documented as full term, or absence of gestational age but not labeled in chart as preterm or premature.
Patient family-reported race and ethnicity were abstracted from charts in categories defined by the Standards for the Classification of Federal Data on Race and Ethnicity, in compliance with NIH inclusion reporting policies.
Includes documentation of apnea or cyanosis occurring at home or in hospital during the present illness.
Static encephalopathy, cerebral palsy, hydrocephalus, spina bifida, epilepsy/seizure disorder, or hypotonia.
Number of observations by hospital type (median, IQR): Freestanding (70, 61–95); Hospital within hospital (38, 24–62); Community (35, 29–57).