Men born small for gestational age or with low birth weight do not improve their rate of reproduction over time: a Swedish population-based study

Less is known about the impact of maternal preconception anemia on birth outcomes. We aimed to examine associations between preconception hemoglobin (Hb) concentrations with risk of low birth weight (LBW) and small-for-gestational-age (SGA). This study was from a large population-based prospective cohort in China and included 124,725 women with singleton live births delivered at gestational ages of 28–45 weeks who were registered before pregnancy. Maternal Hb concentrations were measured during registration, and other health-related information was recorded prospectively. Logistic regression was used to evaluate the associations between preconception Hb concentrations with risk of LBW and SGA, adjusting for potential confounders. The results showed women with preconception anemia accounted for 22.28%. The incidences of LBW/SGA were 2.37%/6.30% among anemic women, and 2.01%/5.48% among non-anemic women, respectively. Preconception mild anemia increased by 17% (95% confidence interval (CI): 1.06, 1.28) and 14% (95% CI: 1.07, 1.21) the risk for LBW and SGA, while moderate-to-severe anemia had no significant association with LBW and SGA. Compared with the 120–129 g/L group, a U-shaped association was observed between preconception Hb concentrations with LBW and SGA. In conclusion, not only maternal anemia but also elevated Hb concentrations before pregnancy contribute to an increased risk of LBW and SGA.

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Low Birth Weight, Small for Gestational Age and Preterm Births before and after the Economic Collapse in Iceland: A Population Based Cohort Study

PLoS ONE ◽

10.1371/journal.pone.0080499 ◽

2013 ◽

Vol 8 (12) ◽

pp. e80499 ◽

Cited By ~ 25

Author(s):

Védís Helga Eiríksdóttir ◽

Tinna Laufey Ásgeirsdóttir ◽

Ragnheiður Ingibjörg Bjarnadóttir ◽

Robert Kaestner ◽

Sven Cnattingius ◽

...

Keyword(s):

Cohort Study ◽

Birth Weight ◽

Low Birth Weight ◽

Gestational Age ◽

Small For Gestational Age ◽

Preterm Births ◽

Population Based ◽

Before And After ◽

Economic Collapse

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Has the prevalence of cerebral palsy changed over time? Trends by birth weight, gestational age, and race/ethnicity in a United States population-based study, 1985-2002

Developmental Medicine & Child Neurology ◽

10.1111/dmcn.30_12887 ◽

2015 ◽

Vol 57 ◽

pp. 20-20

Keyword(s):

United States ◽

Cerebral Palsy ◽

Birth Weight ◽

Gestational Age ◽

Time Trends ◽

Population Based ◽

Population Based Study ◽

United States Population ◽

Race Ethnicity ◽

Over Time

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Exploring the Relationships in Prenatal Weight Gain, Birth Outcomes, and Postnatal Growth up to 2 Years of Age Using a Longitudinal Cohort in Niger

Current Developments in Nutrition ◽

10.1093/cdn/nzaa054_093 ◽

2020 ◽

Vol 4 (Supplement_2) ◽

pp. 1021-1021

Author(s):

Kristin Kohlmann ◽

Ousmane Guindo ◽

Issaka Soumana ◽

Rebecca Grais ◽

Sheila Isanaka

Keyword(s):

Weight Gain ◽

Birth Weight ◽

Low Birth Weight ◽

Birth Outcomes ◽

Gestational Age ◽

Small For Gestational Age ◽

Postnatal Growth ◽

Adverse Birth Outcomes ◽

The Relationship ◽

Over Time

Abstract Objectives The first 1000 days of life, from conception until a child's second birthday, is a crucial period during which life-long foundations for good health, growth, and development are established. It has been shown that poor maternal weight gain can contribute to adverse birth outcomes, such as low birth weight, small for gestational age, and prematurity, and such adverse birth outcomes can place children at greater risk for developing wasting and stunting as they age. While it has been suggested that the development of wasting and stunting may be related, the relative impact of poor birth outcomes on weight and height attainment over time is not clear. The objective of this study is to use recently collected longitudinal data to explore the inter-relationships between prenatal weight gain, birth outcomes, and postnatal risk of both wasting and stunting over time. Methods Using longitudinal data nested within a large randomized trial conducted in Madarounfa, Niger, we describe prenatal weight gain, the risk of adverse birth outcomes (preterm, small for gestational age, and low birthweight) and postnatal child growth (weight and length/height) up to 2 years of age. We use binomial regression to examine the relationship between prenatal weight gain and adverse birth outcomes. We use generalized estimating equations to examine the risk of wasting and stunting over time and evaluate potential effect modification of postnatal growth by birth outcomes. Results We followed 2796 mother-child pairs from pregnancy through 2 years of age. We found that 55.9% of the children were born preterm, 6.4% were born small for gestational weight, and 6.8% were born with low birth weight. Using longitudinal analysis, we are examining the relationship between the risk of wasting and stunting over time. Conclusions This analysis will provide evidence to describe the inter-relationships between prenatal weight gain, adverse birth outcomes, and risk of both wasting and stunting over time, with special attention to the inter-relationships between prenatal and postnatal growth. Funding Sources Médecins Sans Frontières-Operational Center Geneva and the Kavli Foundation, Norway.

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Diet Quality Is Associated with a High Newborn Size and Reduction in the Risk of Low Birth Weight and Small for Gestational Age in a Group of Mexican Pregnant Women: An Observational Study

Nutrients ◽

10.3390/nu13061853 ◽

2021 ◽

Vol 13 (6) ◽

pp. 1853

Author(s):

María A. Reyes-López. ◽

Carla P. González-Leyva ◽

Ameyalli M. Rodríguez-Cano ◽

Carolina Rodríguez-Hernández ◽

Eloisa Colin-Ramírez ◽

...

Keyword(s):

Birth Weight ◽

Low Birth Weight ◽

Nutritional Status ◽

Diet Quality ◽

Gestational Age ◽

Small For Gestational Age ◽

Mexican Women ◽

High Quality ◽

Quality Diet ◽

Newborn Size

A high-quality diet during pregnancy may have positive effects on fetal growth and nutritional status at birth, and it may modify the risk of developing chronic diseases later in life. The aim of this study was to evaluate the association between diet quality and newborn nutritional status in a group of pregnant Mexican women. As part of the ongoing Mexican prospective cohort study, OBESO, we studied 226 healthy pregnant women. We adapted the Alternated Healthy Eating Index-2010 for pregnancy (AHEI-10P). The association between maternal diet and newborn nutritional status was investigated by multiple linear regression and logistic regression models. We applied three 24-h recalls during the second half of gestation. As the AHEI-10P score improved by 5 units, the birth weight and length increased (β = 74.8 ± 35.0 g and β = 0.3 ± 0.4 cm, respectively, p < 0.05). Similarly, the risk of low birth weight (LBW) and small for gestational age (SGA) decreased (OR: 0.47, 95%CI: 0.27–0.82 and OR: 0.55, 95%CI: 0.36–0.85, respectively). In women without preeclampsia and/or GDM, the risk of stunting decreased as the diet quality score increased (+5 units) (OR: 0.62, 95%IC: 0.40–0.96). A high-quality diet during pregnancy was associated with a higher newborn size and a reduced risk of LBW and SGA in this group of pregnant Mexican women.

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