Table 1:
Distribution of demographic characteristics and bronchiolitis risk factors of participating patients
| Demographic Characteristics | Patients N=600 n (%) |
|---|---|
| Age distribution | |
| 0 to 3 months | 130 (21.7) |
| 4 to 12 months | 289 (48.2) |
| > 12 months | 181 (30.1) |
| Sex | |
| Male | 360 (60) |
| Female | 240 (40) |
| Ethnicity (N=588) * | |
| Third generation Puerto Rican | 355 (60.4) |
| At least one generation Puerto Rican | 233 (39.6) |
| Parental marital status | |
| Single/ Separated | 198 (33) |
| Married/ Cohabitating | 402 (67) |
| Household income (N=524) ¥ | |
| ≤ $10,000 | 246 (46.9) |
| $10,001-$30,000 | 190 (36.3) |
| > $30,000 | 88 (16.8) |
| Health insurance | |
| Public | 478 (79.7) |
| Private | 114 (19) |
| None | 8 (1.3) |
| Atopic Risk Factors | |
| History of bronchiolitis | |
| Previous episode | 317 (52.8) |
| Hospitalization | 225 (37.5) |
| PICU admission | 41 (6.8) |
| Past medical history | |
| Asthma | 89 (14.8) |
| Atopic dermatitis (i.e. eczema) | 102 (17) |
| Allergic rhinitis (i.e. seasonal allergies) | 85 (14.2) |
| Allergies∫ | 56 (9.3) |
| Maternal history during pregnancy | |
| Smoking | 14 (2.3) |
| Asthma exacerbation | 78 (13) |
| Family history $ | |
| Asthma | 176 (29.3) |
| Atopic dermatitis | 41 (6.8) |
| Allergic rhinitis | 133 (22.2) |
| Allergies | 91 (15.2) |
| Household allergen exposure | |
| Cigarette or second hand smoke | 146 (24.3) |
| Cat | 53 (8.8) |
| Dog | 228 (38) |
| Bird | 61 (10.2) |
| Rodent | 21 (3.5) |
| Roach | 92 (15.3) |
| Mold | 74 (12.3) |
| Non-Atopic Risk Factors | |
| Past medical history | |
| Hospitalization due to pneumonia (n=598)≠ | 43 (7.2) |
| No breastfeeding | 126 (21) |
| Mode of delivery (n=599) | |
| Vaginal delivery | 300 (50.1) |
| Cesarean delivery | 299 (49.9) |
| Social history | |
| Overcrowding† | 288 (48) |
| Daycare attendance | 181 (30.2) |
| Spends time with 2 or more kids | 370 (61.7) |
PICU=Pediatric Intensive Care Unit.
Results reflect percentages of those who responded; unknown ethnicity for at least one family member was reported for 12 patients.
Results reflect percentages of those who responded; multiple participants preferred not to answer (N=524).
Results reflect percentages based on having at least one family member (i.e. mother, father or sibling) with positive medical history for the condition.
Refers to the presence of food or medicinal allergies.
Results reflect percentages based on those who were previously hospitalized.
Results reflect percentages based on the number of household members, number of bedrooms and the parental marital status.