Brief report on a systematic review and meta-analysis of early childhood educational programming and teenage pregnancy prevention.

Introduction: This is a brief report of a systematic review and meta-analysis which examined the effectiveness of early childhood educational programs for preventing teenage pregnancy by synthesizing randomized control trials.

Methods: The search terms included 'children', 'early childhood intervention', and 'teen pregnancy'. Databases, bibliographies, grey literature, and policy reports were searched in February and March 2018 and included studies with interventions implemented with participants from birth to 5 years old.

Blood lead levels ≤10 micrograms/deciliter and executive functioning across childhood development: A systematic review.

At low levels, the effects of lead on specific neurocognitive processes, such as executive functioning, is not well understood. The aim of this systematic review is to synthesize the empirical literature examining the relationship between prenatal and postnatal low blood lead levels and executive function across childhood development. This review considers the unity and diversity model of executive functioning by assessing the domains of working memory, cognitive flexibility, inhibition, attention, and unitary executive function separately.