Table 1.
Demographics of study patients at enrollment (N=248)
| No. | % | |
|---|---|---|
| Sex | ||
| Male | 135 | 54.4 |
| Female | 113 | 45.6 |
|
| ||
| Ageα (months) | ||
| Mean | 6.9 | |
| Range | 5.8–15.2 | |
|
| ||
| Race | ||
| Non-Hispanic White | 147 | 59.3 |
| African American | 48 | 19.4 |
| Asian | 2 | 0.8 |
| Hispanic | 12 | 4.8 |
| Other | 39 | 15.7 |
|
| ||
| Family History of OM | ||
| Maternal | 34 | 13.8 |
| Paternal | 15 | 6.1 |
| Sibling | 24 | 9.7 |
| >1 Family Member | 20 | 8.1 |
| None/Missing | 155 | 62.3 |
|
| ||
| Daycareα | ||
| Home | 49 | 60.5 |
| Center | 29 | 35.8 |
| Combination (Home and Center) | 3 | 3.7 |
|
| ||
| Breast-feedingα | ||
| <6 months | 28 | 11.3 |
| ≥6 months | 33 | 13.3 |
| Formula | 86 | 34.7 |
| Combination (Formula and breast milk) | 81 | 31.6 |
|
| ||
| Antibiotic Exposure (Number of visits) | ||
| Use in 0–30 days prior to visit | 106 | 8.6 |
| No antibiotic Use or 30+ days prior to visit | 1133 | 91.4 |
α
Variables collected at enrollment; daycare had 167 missing values, breast-feeding had 20 missing values