Repeated Multiple Maternities in Triplet Families

Johan Fellman, Aldur Eriksson

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)


In earlier studies, scientists have attempted to identify genetic and environmental factors affecting the rate of multiple maternities among humans. We contribute to these studies by analyzing the frequencies of multiple maternities in sibships containing triplets. Use of the Hellin transformation is included in evaluation
of the triplet rate. Our results indicate greater frequencies of repeated multiple maternities in the sibships than expected, based on population frequencies. The excesses obtained are more marked in triplet maternities than in twin maternities. The transformed triplet rate shows results similar to the twinning rate. The findings also indicate that in families, the influence of maternal factors on the frequencies of multiple maternities is stronger than the influence of paternal factors.
Original languageEnglish
Peer-reviewed scientific journalTwin Research and Human Genetics
Issue number3
Pages (from-to)206-210
Number of pages5
Publication statusPublished - 04.2014
MoE publication typeA1 Journal article - refereed


  • 112 Statistics and probability
  • 512 Business and Management
  • KOTA2014


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