Journal
JOURNAL OF PEDIATRICS
Volume 155, Issue 5, Pages 673-677Publisher
MOSBY-ELSEVIER
DOI: 10.1016/j.jpeds.2009.04.056
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Funding
- Stockholm County Council
- Spanish Ministry of Education [AP-2004-2745
- EX-2007-1124]
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Objective To examine the relationship between birth weight and later low-grade inflammation in children and adolescents. Study design We selected 166 children (49.4% boys; aged, 9.5 +/- 0.3 years) and 126 adolescents (43.7% males; aged, 15.5 +/- 0.4 years) from the Swedish part of the European Youth Heart Study. Birth weight data were collected from parental recall. Low-grade inflammatory markers include C-reactive protein, fibrinogen, and complement factors C3 and C4. Fatness was measured by the sum of 5 skinfold thicknesses. Cardiorespiratory fitness was measured with a maximal ergometer bike test. The association between birth weight and low-grade inflammatory markers was examined with multiple regression analyses. Results Birth weight was negatively associated with fibrinogen (beta = -0.059; P = .036), C3 (beta = -0.019; P = .010), and C4 (beta = -0.024; P = .031), after controlling for sex, pubertal status, mother's body mass index and socioeconomic status, fatness and fitness. Birth weight was not associated to later C-reactive protein level (all P > .1). Conclusions Our results showed that smaller birth weight is associated with chronic low-grade inflammation in children and adolescents. Because of the implication of complement factors on atherosclerosis process, these results contribute to explain the increased cardiovascular risk associated with low birth weight. (J Pediatr 2009; 155: 673-7).
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