Table 1.
Demographic characteristics of parents and children by recruitment outcomes
| Acceptedaand randomized (N = 361) | Acceptedaand not randomized (N = 402) | Refused (N = 1,360) | Unable to reach (N = 2,385) | Total (N = 4,508)b | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| n | (%) | n | (%) | n | (%) | n | (%) | n | (%) | |
| Parents | ||||||||||
| Gender*** | ||||||||||
| Female | 216 | (60.0) | 237 | (59.0) | 649 | (47.7) | 1076 | (45.1) | 2178 | (48.0) |
| Male | 145 | (40.0) | 165 | (41.0) | 711 | (52.3) | 1309 | (54.9) | 2330 | (52.0) |
| Age (years) at study contact*** | ||||||||||
| Mean (SD) | 39.9 | (6.3) | 40.1 | (6.8) | 41.0 | (7.6) | 39.5 | (6.7) | 40.0 | (7.0) |
| Race/ethnicity*** | ||||||||||
| White non-Hispanic | 42 | (11.6) | 24 | (6.0) | 131 | (9.6) | 151 | (6.3) | 348 | (7.7) |
| African American/Black | 42 | (11.6) | 74 | (18.4) | 191 | (14.1) | 369 | (15.5) | 676 | (15.0) |
| Hispanic | 235 | (65.1) | 255 | (63.4) | 741 | (54.5) | 1396 | (58.5) | 2627 | (58.3) |
| Other non-Hispanic | 21 | (5.8) | 19 | (4.7) | 158 | (11.6) | 197 | (8.3) | 395 | (8.8) |
| Unknown | 21 | (5.8) | 30 | (7.5) | 138 | (10.2) | 272 | (11.4) | 461 | (10.2) |
| Missing | 0 | (0.0) | 0 | (0.0) | 1 | (0.1) | 0 | (0.0) | 1 | (0.0) |
| Education*** | ||||||||||
| ≤ High school | 187 | (51.8) | 200 | (49.8) | 770 | (56.6) | 1157 | (48.5) | 2314 | (49.7) |
| > High school | 174 | (48.2) | 202 | (50.3) | 590 | (43.4) | 1228 | (51.5) | 2194 | (51.3) |
| Median household income*** | ||||||||||
| Median (interquartile range) | $56,574 ($29,962) | $54,130 ($27,067) | $58,761 ($26,555) | $54,490 ($26,779) | $55,497 ($27,092) | |||||
| Child | ||||||||||
| Gender | ||||||||||
| Female | 177 | (49.0) | 197 | (49.0) | 700 | (51.5) | 1176 | (49.3) | 2250 | (49.9) |
| Male | 184 | (51.0) | 205 | (51.0) | 659 | (48.5) | 1209 | (50.7) | 2257 | (50.1) |
| Age (years) at study contact | ||||||||||
| Mean (SD) | 10.8 | (0.8) | 10.8 | (0.8) | 10.8 | (0.9) | 10.8 | (0.8) | 10.8 | (0.8) |
aParents from Kaiser Permanente Southern California who accepted offer of study participation and gave verbal consent to disclose contact information to Claremont Graduate University for consent and randomization. bExcludes 222 families not eligible for participation. ***P < 0.0001 testing for differences among the 4 groups.