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[Birthweight and caffeine consumption].

Authors: Bicalho, Gladys Gripp; Barros Filho, Antônio de Azevedo;

[Birthweight and caffeine consumption].

Abstract

OBJETIVO: Estudar a associação entre consumo de cafeína na gestação e ocorrência de baixo peso ao nascer, prematuridade e restrição do crescimento intra-uterino. MÉTODOS: A investigação se desenvolveu por estudo caso-controle. Foram selecionados 354 recém-nascidos vivos de partos únicos com peso menor que 2.500 g (casos) e 354 com 3.000 g ou mais (controles). A ingesta de cafeína foi calculada considerando-se o consumo diário de café, refrigerante e chá. Os resultados foram ajustados por análise de regressão logística múltipla para as variáveis de confundimento: idade materna, escolaridade, renda, situação conjugal, cor, paridade, fumo, filhos anteriores de baixo peso, peso prévio à gestação, trabalho, intervalo gestacional, consultas durante o pré-natal e hipertensão arterial. RESULTADOS: Os resultados mostraram os seguintes "odds ratio", ajustados entre o consumo diário de cafeína ;300mg/dia, e o baixo peso ao nascer, respectivamente: 0,72 (IC95%, 0,45-1,25) e 0,47 (IC95%, 0,24-0,92); prematuridade: 0,59 (IC95%, 0,32-1,09) e 0,32 (IC95%, 0,15-0,72); e retardo do crescimento intra-uterino: 1,16 (IC95%, 0,45-3,01) e 0,64 (IC95%, 0,20-1,98). CONCLUSÃO: Na amostra estudada, a ingesta de cafeína não foi identificada como fator de risco para prejuízo do crescimento intra-uterino ou para a duração da gestação.

OBJECTIVES: To assess the association between maternal caffeine consumption during pregnancy and low birth weight, prematurity and intrauterine growth retardation. METHODS: A case-control was carried out and 354 newborns of single labor with birthweight ;3,000 g (controls) were analyzed. Caffeine consumption was calculated based on daily consumption of coffee, soft drinks and tea. Results were adjusted using multiple logistic regression for the following confounders: mother's age, schooling, income, marital status, skin color, parity, smoking, previous low birthweight children, mother's pre-pregnancy weight, employment status, interval between pregnancies, prenatal care and high blood pressure. RESULTS: For caffeine consumption ;300 mg/day, the adjusted odds ratios for low birthweight were: 0.72 (95%IC=0.45-1.25) and 0.47 (95%IC=0.24-0.92); prematurity: 0.59 (95%IC=0.32-1.09) and 0.32 (95%IC=0.15-0.72); and intrauterine growth retardation: 1.16 (95%IC=0.45-3.01) and 0.64 (95%IC=0.20-1.98), respectively. CONCLUSION: There was no association between caffeine consumption during pregnancy and low birthweight, prematurity and intrauterine growth retardation.

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Keywords

Adult, Gestational Age, low birthweight, Retardo do crescimento fetal, premature, Fetal growth retardation, Prematuro, Pregnancy, Risk Factors, Caffeine, Odds Ratio, Birth Weight, Humans, Food consumption, Fetal Growth Retardation, Consumo de alimentos, Infant, Newborn, Infant, Infant, Low Birth Weight, Cafeína, Socioeconomic Factors, Case-Control Studies, Female, Recém-nascido de baixo peso, Infant, Premature

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
29
Average
Top 10%
Average
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