Table 1.
Characteristics of families who took part in the study.
| Characteristics | Mean (SD) or n (%) | ||
| Parent characteristics | |||
| Age (years), mean (SD) | 38.6 (6.4)a | ||
| Education levelb, n (%) | |||
| Low | 1 (7) | ||
| Medium | 2 (13) | ||
| High | 12 (80) | ||
| Ethnicity, n (%) | |||
| White | 13 (87) | ||
| Other | 2 (13) | ||
| Number of children in the home, n (%) | |||
| One | 5 (33) | ||
| More than one | 10 (67) | ||
| Child characteristics | |||
| Age (years), mean (SD) | 4.8 (1.7) | ||
| Sex, n (%) | |||
| Male | 10 (67) | ||
| Female | 5 (33) | ||
| Ethnicity, n (%) | |||
| White | 9 (60) | ||
| Other | 6 (40) | ||
aData were missing for 1 participant on this variable (n=14).
bEducation level categorized as low (no qualifications or basic high school education), medium (vocational or advanced high school education), and high (university-level education).