TABLE 1—
Demographic Characteristics of Case Patients and Controls
| Case Patients (n = 100) | Controls (n = 200) | Odds Ratio | Pa | |
| Male, No. (%) | 68 (68) | 136 (68) | . . . | . . . |
| Age, y, mean (SD) | 6.8 (3.5) | 6.6 (3.7) | . . . | .63 |
| Ethnicity, % | ||||
| White | 3 (3) | 16 (8) | Reference | |
| Black | 49 (49) | 117 (58.5) | 2.4 | .187 |
| Native American/other | 11 (11) | 21 (10.5) | 3.2 | .115 |
| Hispanic | 22 (22) | 31 (15.5) | 4.3 | .038 |
| Asian | 15 (15) | 15 (7.5) | 5.8 | .018 |
| Insurance status | ||||
| Private insurance | 17 (17) | 43 (21.5) | Reference | |
| Public insurance | 78 (78) | 147 (73.5) | 1.3 | .366 |
| Self-pay | 5 (5) | 10 (5) | 1.3 | .717 |
| Household income, $ (census tract) | ||||
| High (> 30 115) | 12 (12) | 39 (19.5) | Reference | |
| Medium (15 737–30 115) | 75 (75) | 136 (68) | 1.8 | .105 |
| Low (0–15 736) | 13 (13) | 25 (12.5) | 1.7 | .265 |
| Premorbid diagnosisb | ||||
| Mild mental retardation | 1 (1) | 1 (0.5) | . . . | |
| Developmental delay | 0 (0) | 3 (1.5) | . . . | |
Note. A univariate analysis of age, ethnicity, insurance status, household income, and presence of a premorbid diagnosis showed that only ethnicity was independently associated with child pedestrian injury.
aAll P values were obtained from conditional logistic regression analyses, except for age, which was obtained with a 2-tailed test of means.
bCase patients and controls were screened for the presence of any of the following premorbid diagnoses: cerebral palsy, mental retardation, quadriplegia, paraplegia, and developmental delay.