Influence of Age and Sex on Serum Complement Components in Children

Barbara Roach, Youngki Kim, Elizabeth Jerome, Alfred F. Michael

Research output: Contribution to journalArticlepeer-review

26 Scopus citations


Concentrations of eight complement components were determined on sera from 419 healthy children (198 boys and 221 girls) aged from 1 to 19 years. A significant correlation between concentration and age for all complement components (C1q, C1s, C4, C3, C5, factor B, properdin, and C[unk] inhibitor) was observed for girls; in the male population, a significant correlation was present only for C1q, C4, C3, C5, and properdin. The presence of a significant relationship to age suggests that this variable must be considered in establishing normal values of serum complement for children.

Original languageEnglish (US)
Pages (from-to)918-920
Number of pages3
JournalAmerican Journal of Diseases of Children
Issue number10
StatePublished - Oct 1981


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