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      Pre-pregnancy body mass index and gestational weight-gain predict maternal hemoglobin levels and are jointly associated with neonatal outcomes in a Mexican birth cohort Translated title: Índice de masa corporal y ganancia de peso durante el embarazo como predictores de niveles de hemoglobina materna y su asociación con desenlaces neonatales en una cohorte mexicana

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          Abstract

          Abstract Introduction: there is scarce evidence of the effects of obesity and gestational weight- gain (GWG) on hemoglobin (Hb) levels in pregnancy. Little is known about the implications in offspring when pregnant mothers present with both at delivery. Aim: to identify if pre-pregnancy body mass index (BMI) and GWG are associated with Hb levels at pregnancy third trimester; and identify if the BMI status plus anemia at delivery could influence offspring anthropometry. Methods: in a sub-sample of pregnant women (n = 108) and their offspring (n = 63) from a Mexican birth cohort, information from medical files and questionnaires were used to obtain pre-pregnancy BMI (categorized as normal, overweight, and obese), GWG, and Hb during pregnancy; at delivery and postpartum anthropometric measures were obtained for offspring. Adjusted regression models predicted Hb levels according to pre-pregnancy BMI and GWG; offspring growth trajectories from birth to 3 months old were compared according to mother´s BMI status and anemia combinations at delivery. Results: pre-pregnancy normal (N), overweight (OV), and obesity (OB) were present in 48 %, 40 %, and 12 % of the participants, respectively. Anemia was detected in 22.8 % of the participants at third trimester. Hb levels in the third trimester were significantly lower in those with pre-pregnancy OB-BMI and excessive GWG (12.1 g/dL, 95 % CI: 10.7-13.5) compared to those with pre-pregnancy OB-BMI and insufficient GWG (13.3g/dL, 95 %CI: 11.9-14.8) (p = 0.04). At delivery, 11 % presented with OB-BMI and anemia. Women with OB-BMI and normal Hb levels had children with higher scores in Weight-for-Length-Z score and triceps skinfold. Conclusion: among OB women, excessive GWG was associated with having lower Hb levels in the third trimester. Newborns had higher scores in growth patterns related to adiposity from birth to 3 months old if mothers had normal Hb levels and OB.

          Translated abstract

          Resumen Introducción: existe escasa evidencia de los efectos de obesidad y ganancia de peso gestacional (GPG) y niveles de hemoglobina (Hb) durante el embarazo. Poco se conoce sobre las implicaciones en la descendencia cuando las embarazadas presentan ambos en el momento del parto. Objetivos: identificar si el índice de masa corporal (IMC) previo al embarazo y el GPG están asociados con los niveles de Hb en el tercer trimestre del embarazo; e identificar si el IMC más la anemia en el momento del parto podrían influir en la antropometría de la descendencia. Metodología: se utilizó información de expedientes médicos y cuestionarios para obtener el IMC antes del embarazo (categorizado como normal, con sobrepeso y obesidad), GPG y Hb durante el embarazo; en el momento del parto y posparto se obtuvieron medidas antropométricas para la descendencia de una submuestra de mujeres embarazadas (n = 108) y su descendencia (n = 63) de una cohorte mexicana. Los modelos de regresión ajustados predijeron los niveles de Hb según IMC y GPG antes del embarazo; se compararon las trayectorias de crecimiento de la descendencia desde el nacimiento hasta los 3 meses de edad según el estado de IMC de la madre y las combinaciones de anemia en el momento del parto. Resultados: peso preembarazo normal (N), sobrepeso (SP) y obesidad (OB) estuvieron presentes en 48 %, 40 % y 12 % de las participantes, respectivamente. Se diagnosticó anemia en el 22,8 % de las participantes en el tercer trimestre. Los niveles de Hb en el tercer trimestre fueron significativamente más bajos en aquellas con IMC-OB antes del embarazo y GPG excesivo (12,1 g/dL, IC del 95 %: 10,7-13,5) en comparación con aquellas con IMC-OB antes del embarazo y GPG insuficiente (13,3 g/dl, IC del 95 %: 11,9-14,8) (p = 0,04). Al momento del parto, el 11 % presentó OB-BMI y anemia. Las mujeres con OB-BMI y niveles normales de Hb tenían hijos con puntuaciones más altas en puntuación Z de peso para longitud y pliegue cutáneo del tríceps. Conclusión: la GPG excesiva entre las mujeres OB se asoció con niveles más bajos de Hb en el tercer trimestre. Los recién nacidos tenían puntajes más altos en los patrones de crecimiento relacionados con la adiposidad desde el nacimiento hasta los 3 meses de edad si las madres tenían niveles normales de Hb y OB.

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          Most cited references40

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          Maternal and child undernutrition and overweight in low-income and middle-income countries

          The Lancet, 382(9890), 427-451
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            Physical status: the use and interpretation of anthropometry. Report of a WHO Expert Committee.

            Anthropometry provides the single most portable, universally applicable, inexpensive and non-invasive technique for assessing the size, proportions, and composition of the human body. It reflects both health and nutritional status and predicts performance, health, and survival. As such, it is a valuable, but currently underused, tool for guiding public health policy and clinical decisions. This report presents the conclusions and comprehensive recommendations of a WHO Expert Committee for the present and future uses and interpretation of anthropometry. In a section that sets the technical framework for the report, the significance of anthropometric indicators and indices is explained and the principles of applied biostatistics and epidemiology that underlie their various uses are discussed. Subsequent sections provide detailed guidance on the use and interpretation of anthropometric measurements in pregnant and lactating women, newborn infants, infants and children, adolescents, overweight and thin adults, and adults aged 60 years and over. With a similar format for each section, the report assesses specific applications of anthropometry in individuals and populations for purposes of screening and for targeting and evaluating interventions. Advice on data management and analysis is offered, and methods of taking particular measurements are described. Each section also includes a discussion of the extent, reliability and universal relevance of existing reference data. An extensive series of reference data recommended by the Expert Committee and not widely distributed by WHO hitherto is included in an annex.
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              Preconceptional and maternal obesity: epidemiology and health consequences.

              Obesity in women of reproductive age is increasing in prevelance worldwide. Obesity reduces fertility and increases time taken to conceive, and obesity-related comorbidities (such as type 2 diabetes and chronic hypertension) heighten the risk of adverse outcomes for mother and child if the woman becomes pregnant. Pregnant women who are obese are more likely to have early pregnancy loss, and have increased risk of congenital fetal malformations, delivery of large for gestational age infants, shoulder dystocia, spontaneous and medically indicated premature birth, and stillbirth. Late pregnancy complications include gestational diabetes and pre-eclampsia, both of which are associated with long-term morbidities post partum. Women with obesity can also experience difficulties during labour and delivery, and are more at risk of post-partum haemorrhage. Long-term health risks are associated with weight retention after delivery, and inherent complications for the next pregnancy. The wellbeing of the next generation is also compromised. All these health issues could be avoided by prevention of obesity among women of reproductive age, which should be viewed as a global public health priority. For women who are already obese, renewed efforts should be made towards improved management during pregnancy, especially of blood glucose, and increased attention to post-partum weight management. Effective interventions, tailored to ethnicity and culture, are needed at each of these stages to improve the health of women and their children in the context of the global obesity epidemic.
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                Author and article information

                Journal
                nh
                Nutrición Hospitalaria
                Nutr. Hosp.
                Grupo Arán (Madrid, Madrid, Spain )
                0212-1611
                1699-5198
                August 2022
                : 39
                : 4
                : 852-862
                Affiliations
                [3] Copenhagen Hovedstaden orgnameCopenhagen University orgdiv1Section of Global Health orgdiv2Department of Public Health Denmark
                [6] Cuernavaca orgnameInstituto Mexicano del Seguro Social Mexico
                [4] Herlev orgnameSteno Diabetes Center orgdiv1Clinical Prevention Research Denmark
                [1] Lomas de Santa Fe Ciudad de Mexico orgnameUniversidad Iberoamericana orgdiv1Department of Health Mexico
                [2] Cuernavaca Morelos orgnameInstituto Nacional de Salud Pública orgdiv1Center for Nutrition and Health Research Mexico
                [7] Cuernavaca Morelos orgnameInstituto Nacional de Salud Pública orgdiv1Center for Population Health Research Mexico
                [5] Herlev orgnameSteno Diabetes Center orgdiv1Health Promotion Research Denmark
                Article
                S0212-16112022000600018 S0212-1611(22)03900400018
                10.20960/nh.03999
                35916135
                d7619f77-278c-4134-9779-5f3d701e5d67

                This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

                History
                : 16 January 2022
                : 24 April 2022
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 40, Pages: 11
                Product

                SciELO Spain

                Categories
                Original Papers

                Gestational weight gain,Overweight,Anemia,Pregnancy,Sobrepeso,Ganancia de peso gestacional,Embarazo

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