International standards for fetal growth based on serial ultrasound measurements: the Fetal Growth Longitudinal Study of the INTERGROWTH-21st Project

Papageorghiou, Aris T.; Ohuma, Eric O; Altman, Douglas G.; Todros, Tullia; Ismail, Leila Cheikh; Lambert, Ann; Jaffer, Y A; Bertino, Enrico; Gravett, Michael G.; Purwar, Manorama; Noble, J. Alison; Pang, Ruoming; Victora, César G.; Barros, Fernando C.; Carvalho, Maria; Salomon, Laurent; Bhutta, Zulfiqar A; Kennedy, Stephen; Villar, José

doi:10.1016/s0140-6736(14)61490-2

Cited by 732 publications

(940 citation statements)

References 42 publications

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“…Fetal head circumference increases from about 10 to 22 cm between gestational weeks 14 and 24, at a rate of 2.2 cm per week. In the next 10 weeks of gestation, the average head circumference growth rate is around 0.7 cm/week; and for the remainder of a full-term pregnancy (34-40 weeks), the growth slows down further to about 0.5 cm/week (Papageorghiou et al 2014). If a maternal urine sample is obtained in late, rather than early, pregnancy, the resulting measure may miss the most relevant exposure window, and the study may be unable to establish the true temporal relation between the exposure and the outcome.…”

Section: Study Design and Temporal Relationshipmentioning

confidence: 99%

Systematic review of the literature on triclosan and health outcomes in humans

Goodman

Naiman

LaKind

2017

Critical Reviews in Toxicology

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The ability of epidemiologic evidence to inform regulatory decisions is largely dependent on the coherence and quality of the published literature. This systematic review examines the quality and consistency of studies assessing health outcomes associated with exposure to triclosan (TCS), an antimicrobial chemical with a short physiologic half-life. We used elements of the Biomonitoring, Environmental Epidemiology, and Short-Lived Chemicals instrument to evaluate aspects of study quality. Each methodological domain -overall design, exposure assessment, and data analysis -was categorized according to three tiers where Tier 1 indicated the highest quality. We also examined consistency of methods, results and reporting as considerations for weight of evidence (WOE) assessment. Studies were considered sufficiently comparable if they addressed the same or similar research questions. Forty-two studies met the criteria for inclusion. Only one randomized cross-over clinical trial of TCS was assigned to Tier 1 for all three domains. Most other studies were assigned to Tier 3 for at least one domain. Although the available literature examined more than 100 different health endpoints and reported hundreds of different measures of association, few studies were considered comparable. For reported measures of association, most were not significantly different from the null; the few statistically significant results represented isolated findings without a discernable across-or within-study pattern. We conclude that the current body of epidemiologic literature does not allow a meaningful WOE assessment due to methodological limitations of individual studies and lack of inter-study consistency. On the other hand, methodologically stronger studies may be used to inform future research. ARTICLE HISTORY

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Section: Study Design and Temporal Relationshipmentioning

confidence: 99%

Systematic review of the literature on triclosan and health outcomes in humans

Goodman

Naiman

LaKind

2017

Critical Reviews in Toxicology

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“…We read with interest the article by Papageorghiou et al 1 and acknowledge the extraordinary work of the authors, who applied a robust and prospective methodology to produce international fetal growth standards to be used universally. Their data demonstrate that, under optimal conditions, fetuses from different ethnicities and geographical regions present similar growth patterns, undermining the obstetric trend for customizing growth according to maternal ethnicity 2 .…”

Section: International Standards For Fetal Growth: Relevance Of Advanmentioning

confidence: 99%

International standards for fetal growth: relevance of advances in ultrasound technology

Morales‐Roselló

Hervás‐Marín

Stirrup

et al. 2015

Ultrasound in Obstet & Gyne

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“…This question was recently taken up by the INTERGROWTH-21 st study (11), which proposes the adoption of a universal standard for fetal growth, based on the proposition that optimal conditions for the mother, in terms of her education, nutrition and relative socioeconomic status in disparate cultural settings will lead to similar patterns of fetal growth. Such growth is therefore deemed to be 'optimal'.…”

Section: What Is Optimal Fetal Growth?mentioning

confidence: 99%