Table 2. Descriptives of Categorical Study Variables in the Analytic and Nonanalytic Samples.
| Analytic sample (n = 16,916) | Nonanalytic sample (n = 2,328) | Test F | |||
|---|---|---|---|---|---|
| Variable | n | % | n | % | |
| Note. F = F statistic for design-based Pearson χ2 (converted to F test to account for the MCS sampling design). Proportions are weighted to account for sampling design and nonresponse in MCS. n values are unweighted. | |||||
| ** p < .01. *** p < .001. | |||||
| Child | |||||
| Girl | 8,288 | 48.13 | 1,061 | 46.03 | 1.59 |
| Ethnicity | 3.15** | ||||
| White | 14,062 | 75.76 | 1,679 | 77.30 | |
| Black | 596 | 7.03 | 133 | 5.14 | |
| Indian | 430 | 2.65 | 67 | 2.57 | |
| Pakistani or Bangladeshi | 1,077 | 8.98 | 273 | 8.61 | |
| Mixed | 512 | 4.15 | 82 | 3.62 | |
| Other | 230 | 1.43 | 73 | 2.76 | |
| Parent or household | |||||
| Mother is university educated | 2,821 | 10.71 | 205 | 9.34 | 2.85 |
| Two-parent family | |||||
| Sweep 2 | 12,195 | 79.73 | 139 | 65.26 | 11.02*** |
| Sweep 3 | 13,237 | 74.62 | 103 | 73.37 | 0.06 |
| Sweep 4 | 9,920 | 69.30 | 72 | 78.65 | 2.70 |