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- Höglund, D, et al.
(author)
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Food habits in Swedish adolescents in relation to socioeconomic conditions.
- 1998
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In: European Journal of Clinical Nutrition. - 0954-3007 .- 1476-5640. ; 52:11, s. 784-9
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Journal article (peer-reviewed)abstract
- OBJECTIVE: To describe the food habits of Swedish adolescents 14-15 y of age. To analyse the connection between food habits and socioeconomic circumstances and background factors.DESIGN: Cross-sectional survey using a Food Frequency Questionnaire including questions on meal patterns.SETTING: The city of Göteborg and the County of Alvsborg, Sweden 1996.SUBJECTS: Pupils in the 8th grade in all schools in the city of Göteborg and the County of Alvsborg were in February 1996 invited to participate. The study comprised 7605 pupils. The drop-out rate was 14.4% (n = 1280).RESULTS: The adolescents had an infrequent consumption of vegetables and fruits and they had a daily consumption of sweets. Cereals, dairy products and snacks: buns, wafers, soft drinks, ice cream and potato crisps were consumed more than once a day. Thirty percent of the girls and 20% of the boys did not eat breakfast every day. The free school lunch was eaten daily by 50% of the boys and 30% of the girls, the remainder ate some type of snack. A negative correlation was found between smoking and the frequency of vegetable consumption. Pupils from areas with high socioeconomic status more often ate breakfast and lunch and the boys more often ate dinner compared to adolescents from areas with low socioeconomic status.CONCLUSIONS: An irregular meal pattern as well as snack consumption and smoking were common, especially among girls in areas with low socioeconomic status.
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- Michaelsen, K F, et al.
(author)
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Serum bone gamma-carboxyglutamic acid protein in a longitudinal study of infants : lower values in formula-fed infants.
- 1992
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In: Pediatric Research. - : Springer Science and Business Media LLC. - 0031-3998 .- 1530-0447. ; 31:4 Pt 1, s. 401-5
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Journal article (peer-reviewed)abstract
- Bone gamma-carboxyglutamic acid protein [BGP (osteocalcin)] is a protein synthesized by osteoblasts and incorporated in the bone matrix. Serum BGP is a sensitive marker of bone formation, and it parallels the growth velocity curve during childhood and adolescence. Serum BGP was measured at the age of 2, 6, and 9 mo in a cohort study of nutrition and growth in 91 healthy infants. At 2 mo, the mean BGP value (+/- SD) was 275 +/- 87 ng/mL in infants exclusively breast-fed, and 80 +/- 44 ng/mL in formula-fed infants. At 6 mo, the values were 142 +/- 58 ng/mL and 55 +/- 30 ng/mL, and at 9 mo 75 +/- 39 ng/mL and 45 +/- 19 ng/mL in partially breast-fed and formula-fed infants, respectively. The differences were significant (p less than 0.001) at all three ages. At 2 and 9 mo, breast-milk intake was measured by test-weighing. Serum BGP was positively correlated to breast milk intake (mL/kg body wt) at 2 mo (r = 0.59, p less than 0.001) and 9 mo (r = 0.41, p = 0.06). When breast-feeding was stopped, the high BGP concentrations were not sustained. There were no significant differences in linear growth velocity between breast-fed and formula-fed infants and no correlation between BGP values and linear growth velocity. We speculate that either a factor in human milk or the level of minerals in human milk causes the high BGP values. Moreover, if the higher values are associated with increased osteoblast activity, then the remodeling or the mineralization of bone might be different in infants not being breast-fed.
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- Michaelsen, K F, et al.
(author)
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Serum bone Gla Protein (BGP, Osteocalcin) in Infants : Values Positively Correlated with Human Milk Intake.
- 1992
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In: Mechanisms Regulating Lactation and Infant Nutrient Utilization. - : Wiley-Liss. - 0471561347 ; , s. 419-423
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Book chapter (other academic/artistic)abstract
- Bone gamma-carboxyglutamic acid protein [BGP (osteocalcin)] is a protein synthesized by osteoblasts and incorporated in the bone matrix. Serum BGP is a sensitive marker of bone formation, and it parallels the growth velocity curve during childhood and adolescence. Serum BGP was measured at the age of 2, 6, and 9 mo in a cohort study of nutrition and growth in 91 healthy infants. At 2 mo, the mean BGP value (+/- SD) was 275 +/- 87 ng/mL in infants exclusively breast-fed, and 80 +/- 44 ng/mL in formula-fed infants. At 6 mo, the values were 142 +/- 58 ng/mL and 55 +/- 30 ng/mL, and at 9 mo 75 +/- 39 ng/mL and 45 +/- 19 ng/mL in partially breast-fed and formula-fed infants, respectively. The differences were significant (p less than 0.001) at all three ages. At 2 and 9 mo, breast-milk intake was measured by test-weighing. Serum BGP was positively correlated to breast milk intake (mL/kg body wt) at 2 mo (r = 0.59, p less than 0.001) and 9 mo (r = 0.41, p = 0.06). When breast-feeding was stopped, the high BGP concentrations were not sustained. There were no significant differences in linear growth velocity between breast-fed and formula-fed infants and no correlation between BGP values and linear growth velocity. We speculate that either a factor in human milk or the level of minerals in human milk causes the high BGP values. Moreover, if the higher values are associated with increased osteoblast activity, then the remodeling or the mineralization of bone might be different in infants not being breast-fed.
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