Table 1.
Demographic characteristics of study sample
| Demographic variable | |
|---|---|
| Child sex, male [n (%)] | 137 (47.1%) |
| Child age, mean (SD [range]), years | 4.20 (0.80 [3.00–6.42]) |
| Child race [n (%)] | |
| White, European-American | 176 (60.5%) |
| African-American | 26 (8.9%) |
| Asian | 17 (5.8%) |
| Mixed/Other | 71 (24.4%) |
| Child ethnicity [n (%)] | |
| Hispanic/Latino descent | 48 (16.7%) |
| Number of siblings, mean (SD [range]) | 1.23 (1.28 [0–13]) |
| Parent completing diaries, mother [n (%)] | 273 (93.8%) |
| Parent employment status [n (%)] | |
| Mother employed at least part-time | 161 (56.3%) |
| Mother stay-at-home parent or unemployed | 125 (43.7%) |
| Father employed at least part-time | 258 (94.5%) |
| Father stay-at-home parent or unemployed | 15 (5.5%) |
| Family income [n (%)] | |
| < $20,000 | 18 (6.3%) |
| $20,001 to $40,000 | 43 (15.1%) |
| $40,001 to $70,000 | 56 (19.7%) |
| $70,001 to $100,000 | 70 (24.6%) |
| > $100,000 | 97 (34.2%) |
| Parent age | |
| Mother, mean (SD [range]), years | 33.60 (5.65 [21.00–49.00]) |
| Father, mean (SD [range], years | 35.91 (6.72 [21.00–60.00]) |
| Parent marital status, married/living together [n (%)]a | 266 (91.4%) |
| Parental education: graduated 4-year college [n (%)] | |
| Mothers | 196 (67.4%) |
| Fathers | 171 (58.7%) |
| Total number of diaries completed by family [n (%)] | |
| 0 diaries | 8 (2.7%) |
| 1–5 diaries | 7 (2.3%) |
| 6–10 diaries | 9 (3.0%) |
| 11–14 diaries | 275 (92.0%) |
N = 291.
a
Parents were permitted to endorse more than one marital status if applicable. One family (0.3%) did not report race; 3 families (1.0%) did not report the ethnicity; 7 families (2.4%) did not report parental education; 7 families (2.4%) did not report their yearly income; 5 mothers (1.7%) did not report employment status; 18 fathers (6.2%) did not report employment status; 2 mothers (0.7%) did not report their age; 11 fathers (3.8%) did not report their age