Table 3.
Characteristics of cases, by learning status
| Characteristic1 | No learning problem N=71 | Learning problem N=44 | ||
|---|---|---|---|---|
| N | % | N | % | |
| Sex | ||||
| Female | 29 | 40.8 | 15 | 34.1 |
| Male | 42 | 59.2 | 29 | 65.9 |
| Race/ethnicity | ||||
| Non-Hispanic white | 57 | 80.3 | 25 | 56.8 |
| Hispanic | 11 | 15.5 | 16 | 36.4 |
| Other | 3 | 4.2 | 3 | 6.8 |
| Language | ||||
| English | 66 | 93.0 | 34 | 77.3 |
| Spanish | 5 | 7.0 | 10 | 22.7 |
| Family income | ||||
| < $25,000 | 5 | 7.2 | 12 | 27.9 |
| $25,000–$34,999 | 8 | 11.6 | 12 | 27.9 |
| $35,000–$64,999 | 9 | 13.0 | 9 | 20.9 |
| ≥ $65,000 | 47 | 68.1 | 10 | 23.3 |
| Phenotype | ||||
| Microtia only | 13 | 18.3 | 11 | 25.0 |
| Microtia and mandibular hypoplasia | 24 | 33.8 | 18 | 40.9 |
| Other CFM-associated anomalies | 34 | 47.9 | 15 | 34.1 |
| No discernible anomaly | 0 | 0.0 | 0 | 0.0 |
| Hearing impairment2 | ||||
| No | 24 | 34.8 | 9 | 22.5 |
| Yes | 45 | 65.2 | 31 | 77.5 |
1
Percentages represent proportion with non-missing values. Missing data: income (3); hearing impairment (6)
2
Defined as a hearing threshold >40 dB at frequencies of 500, 1000, 2000, or 4000 Hz