Furthermore, we have discussed several important limitations such as study design, exposure measurement, and developmental assessment from current literature, which should be interpreted with caution.
Since an optimal study design for testing potential developmental neurotoxicants in rats, should include exposure during both the pre- and postnatal periods of brain development, we suggest that in the case of triclosan, direct dosing of pups may be the best way to obtain that goal.
This research relies on a multiple embedded case study design based on a developmental evaluation approach.
Birth cohort studies, where parents consent for their child to be enrolled in a longitudinal study prior to or soon after birth, are a powerful study design in epidemiology and developmental research.
Studies were evaluated for their clinical domain, developmental stage and study design.
Study Design: Thirty-five normal subjects, 34 patients with developmental dysplasia of the hip who did not undergo dome pelvic osteotomy, and 21 patients with developmental dysplasia of the hip who underwent dome pelvic osteotomy were recruited for the study.
However, this view has recently been challenged specifically in relation to study design when it comes to children with complex developmental disorders such as autism.
Many of the developmental neurotoxicity studies suffer from inadequate study design, problematic statistical analyses, use of formulated products, and/or inadequate controls.
The study design compared exposure effects caused by different metals at different developmental stages (pre-hatch and post-hatch).
A single study design is proposed for the pre- and post-natal developmental assessments of vaccines in rodents and rabbits.
