TABLE 3.
Descriptive summaries of selected baseline sociodemographics
| Baseline | CC | AC | AC waves | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 19/20 | 21/22 | 23/24 | 25/26 | 27/28 | 29/30 | ||||
| Sample size | 9802 | 2257 | 6787 | 5529 | 5058 | 4700 | 4324 | 4019 | 3742 |
| Age in months (SD) | 217 (6) | 216 (5) | 217 (6) | 217 (5) | 217 (5) | 216 (5) | 216 (5) | 216 (5) | 216 (5) |
| Drug use reporting | |||||||||
| Yes | 28% | 20% | 26% | 25% | 25% | 25% | 25% | 24% | 24% |
| No | 72% | 80% | 74% | 75% | 75% | 75% | 75% | 76% | 76% |
| Sex | |||||||||
| Male | 48% | 34% | 43% | 41% | 41% | 40% | 40% | 39% | 39% |
| Female | 52% | 66% | 57% | 59% | 59% | 60% | 60% | 61% | 61% |
| Race/ethnicity | |||||||||
| Black | 10% | 5% | 8% | 8% | 7% | 7% | 6% | 6% | 6% |
| White | 71% | 81% | 75% | 75% | 77% | 77% | 78% | 79% | 79% |
| Asian | 4% | 4% | 4% | 4% | 4% | 4% | 4% | 4% | 4% |
| Hispanic | 11% | 7% | 9% | 9% | 9% | 8% | 8% | 8% | 8% |
| Other | 4% | 3% | 4% | 4% | 4% | 4% | 4% | 3% | 3% |
Abbreviations: AC, available case analysis; AC waves, six follow‐up waves marked by the modal ages; Baseline, sampled baseline individuals; CC, complete case analysis; SD, standard deviation.