Concentrations of ascorbic acid in the plasma of pregnant smokers and nonsmokers and their newborns

Concentrations of ascorbic acid in the plasma of pregnant smokers and nonsmokers and their newborns

A cross-sectional study was carried out to determine the differences in vitamin C status of Brazilian pregnant women smokers and nonsmokers and their respective newborn babies, and to assess the prevalence of hypovitaminosis C among these two groups of women. The study involved 127 pregnant women, 4...

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Bibliographic Details
Published in:International journal for vitamin and nutrition research Vol. 74; no. 3; pp. 193 - 198
Main Authors: Oliveira, A.M. de, Rondo, P.H. de C, Barros, S.B. de M
Format: Journal Article
Language:English
Published: Bern Hogrefe & Huber 01-05-2004
Kirkland, WA
Toronto, ON
Subjects:
anthropometric measurements
antioxidants
ascorbic acid
Ascorbic Acid - blood
Ascorbic Acid Deficiency - epidemiology
Biological and medical sciences
blood chemistry
blood plasma
Brazil - epidemiology
correlation
Diet
dietary surveys
Feeding. Feeding behavior
Female
Fetal Blood - chemistry
Fruit
Fundamental and applied biological sciences. Psychology
Humans
hypovitaminosis C
Infant, Newborn
infants
maternal nutrition
Maternal Nutritional Physiological Phenomena
neonates
Nutritional Status
Pregnancy
prevalence
smoking (habit)
Smoking - blood
sociodemographic characteristics
Socioeconomic Factors
Vegetables
Vertebrates: anatomy and physiology, studies on body, several organs or systems
vitamin deficiencies
women
Brazil
Human
Pregnancy
antioxidant
smoker
Ascorbic acid
Newborn
newborn babies
pregnant women
vitamin C
Concentration
Blood plasma
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Summary:A cross-sectional study was carried out to determine the differences in vitamin C status of Brazilian pregnant women smokers and nonsmokers and their respective newborn babies, and to assess the prevalence of hypovitaminosis C among these two groups of women. The study involved 127 pregnant women, 40 pregnant smokers and 87 pregnant nonsmokers, admitted to a maternity hospital in Sao Paulo, Brazil. Data concerning the pregnant women's socioeconomic, demographic, obstetric, and nutritional characteristics were collected, as well as data concerning the newborns' anthropometry and Apgar scores. A strongly significant correlation (p < 0.001) was found between the concentrations of ascorbic acid (AA) in both pregnant smokers (r = 0.77) and pregnant nonsmokers (r = 0.61) and their respective umbilical cords. The mean umbilical AA concentration was significantly higher than the meanAA concentration in pregnant women (92.05 +/- 41.13 vs. 33.39 +/- 18.25 micromol/L, p < 0.001). It was observed that the mean AA was significantly lower for the newborns (p = 0.03) and pregnant women (p = 0.02) from the smoking group. Forty percent (40%) of the smokers and 27% of the nonsmokers presented hypovitaminosis C. We suggest an increase in the consumption of fruits and vegetables by pregnant women, especially the smokers.
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ISSN:0300-9831
1664-2821
DOI:10.1024/0300-9831.74.3.193