The prospective follow-up of the PARIS birth cohort was based on parent self-administered questionnaires completed when infants were 1, 3, 6, 9, and 12 months of age and at each birthday until age 7 years, and on two health examinations at 18 months and 7 years of age.
Participants' race and ethnicity were based on parents' self-report.
bRating is based on parents' self-reported perceptions of the severity of their child's condition.
cRating is based on parents' self-reported perceptions of the severity of their child's condition.
Racial categorization was based on parents' self-identification of being black or white for at least three generations.
More recent and larger studies have included an assessment of maternal exposures; one reported "solvents" as an exposure category (Schuz et al. 2000), whereas another reported results on specific solvents or groups of solvents; but in both studies, exposure assignment seems to have been directly based on parents' self-reporting (Shu et al. 1999).
37 Nevertheless, our findings may not be applicable to diagnoses of a disruptive behaviour disorder based on parent data, self-report data or multi-informant data, or indeed to other outcomes within this or other studies.
Based on parent- or self-reported food intake for children, adults with young children, and older adults, we derived exposure estimates for eleven toxic compounds.
By contrast the SDQ studies, being all based on the same measure, are more homogeneous and provide well-validated sub-scale scores, with equivalent ratings based on parent, teacher and self-report which can be analysed separately but in parallel.
Subscale scores based on parent- and child self-report were added together to create two more stable indicators from the original four.
The second aim is to determine the trajectory of the global HRQL scale scores over a 12-month period among two subgroups: (1) "all children" based on parent proxy report and (2) "adolescents only" based on adolescent self-report and parent proxy report.
