Direct effect estimates of family income quintile on subjective well-being at adolescence, by childhood period, using marginal structural modeling.

<p>Direct effect estimates of family income quintile on subjective well-being at adolescence, by childhood period, using marginal structural modeling.</p

Baseline characteristics of adolescents with information on subjective well-being in the child development supplement of the panel study of income dynamics, United States, 2002 and 2007 (n = 2234).

<p>Baseline characteristics of adolescents with information on subjective well-being in the child development supplement of the panel study of income dynamics, United States, 2002 and 2007 (n = 2234).</p

The challenges of heterogeneity in gestational age and birthweight inclusion criteria for research synthesis on very preterm birth and childhood cognition: An umbrella review and meta-regression analysis

BackgroundMeta-analyses of studies on very preterm (VPT) birth and childhood cognition select primary studies using gestational age inclusion criteria only, while others also include birthweight criteria. The consequences of this choice are unknown.ObjectiveThe objective of this study was to describe the gestational age (GA) and birthweight (BW) criteria used in studies of VPT birth and cognition and to investigate whether meta-analysis results differ based on these criteria.Data sourcesFive systematic reviews on VPT birth and childhood IQ.Study selection and data extractionCountry, birth years, GA-BW selection criteria and participant IQ were extracted from 156 studies representing 103 birth cohorts.SynthesisPooled standardised mean differences (SMD) in IQ between children born VPT and term-born controls were estimated by sub-group based on GA-BW criteria (GA, BW and GA-BW combined) and degree of preterm birth-low birthweight combinations: extremely preterm (EPT, ResultsCohorts used 27 distinct GA-BW inclusion criteria. Most common criteria were BW ConclusionsThese findings support the inclusion of studies using GA and/or BW criteria in meta-analyses on VPT birth and cognition to increase the geographical and temporal generalisability of the results and to allow investigation of the impact of the heterogeneous inclusion criteria in this literature on outcomes.</div

Heterogeneity of design features in studies included in systematic reviews with meta-analysis of cognitive outcomes in children born very preterm

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The early educational environment at five years of age in a European cohort of children born very preterm: challenges and opportunities for research

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Developmental motor problems and health-related quality of life among five-year-old children born extremely preterm in a European multi-country cohort

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