ArticlePaediatric and perinatal epidemiology2014
The contribution of maternal birth cohort to term small for gestational age in the United States 1989-2010: an age, period, and cohort analysis.
Article in Paediatric and perinatal epidemiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
9 citing papers in PubMed, 16 citations in OpenAlex.
- Secular trends of low birth weight, preterm birth, and small for gestational age in Shanghai from 2004 to 2020: an age-period-cohort analysis.BMC pregnancy and childbirth · 2023Article
- Factors associated with small- and large-for-gestational-age in socioeconomically vulnerable individuals in the 100 Million Brazilian Cohort.The American journal of clinical nutrition · 2021Article
- Increasing trends in incidence of preterm birth among 2.5 million newborns in Guangzhou, China, 2001 to 2016: an age-period-cohort analysis.BMC public health · 2020Article
- Age-period-cohort effects in pre-existing and pregnancy-associated diseases amongst primiparous women.Biology of sex differences · 2020Article
- Impacts of Medicaid Expansion on Health Among Women of Reproductive Age.American journal of preventive medicine · 2020Article
- Theoretical Insights into Preconception Social Conditions and Perinatal Health: The Role of Place and Social Relationships.Population research and policy review · 2017Article
- Risk of Adverse Infant Outcomes Associated with Maternal Tuberculosis in a Low Burden Setting: A Population-Based Retrospective Cohort Study.Infectious diseases in obstetrics and gynecology · 2016Article
- Evaluation of health in pregnancy grants in Scotland: a protocol for a natural experiment.BMJ open · 2014Article
- Age, period, and cohort effects in perinatal epidemiology: implications and considerations.Paediatric and perinatal epidemiology · 2014Article
Corrections and comments
- Commented on by
Authors and funding
1 author at 1 institution in 1 country.
Funding
Abstract
backgroundAfter decades of steady increase, mean birthweight in the US declined throughout the 1990s and early 2000s, a trend not fully explained by changes in length of gestation, medical practice, demographics, or maternal behaviours. We hypothesised that secular changes in health or social factors across women's life courses may have contributed to this unexplained trend and examined maternal birth cohort as a proxy measure of life-course determinants of fetal growth in the US.
methodsWe used the age, period, and cohort (APC) intrinsic estimator (IE) approach to estimate the contribution of maternal birth cohort (independent of maternal age and period of birth) to small for gestational age (SGA), overall and among term births, in the US from 1989 to 2010. We conducted analyses separately among foreign- and US-born Hispanic, non-Hispanic black (NHB), and non-Hispanic white mothers.
resultsWe found evidence of a U-shaped relationship between maternal birth cohort and SGA among NHB women only. After accounting for maternal age and period of birth, risk of SGA among NHB women born in 1950 was 21.1% and decreased to 15.9% in 1970. However, NHB women born after 1970 experienced increasing risk (19.6% by the 1986 birth cohort).
conclusionsOur findings suggest that NHB women born after 1970 have experienced increasing risk of SGA. Declining risk of SGA across NHB maternal birth cohorts from 1950 to 1970, however, suggests the potential to reverse this trend. Results illustrate the need for research on health and social risk factors for SGA across the pre-pregnancy life course.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.