Sex ratio and associated risk factors for 50 congenital anomaly types: clues for causal heterogeneity.

@article{Rittler2004SexRA,
  title={Sex ratio and associated risk factors for 50 congenital anomaly types: clues for causal heterogeneity.},
  author={M{\^o}nica Rittler and Jorge S L{\'o}pez-Camelo and Eduardo Enrique Castilla},
  journal={Birth defects research. Part A, Clinical and molecular teratology},
  year={2004},
  volume={70 1},
  pages={13-9}
}
BACKGROUND Sex ratio (SR) deviations have been reported for many congenital anomalies, but so far no satisfactory explanation for these deviations has been found. The aim of this study was to detect sex-related differences in the association between risk factors and congenital anomalies, and to relate these differences with possibly underlying causes of birth defects. METHODS Between 1982 and 1999, 1,444,646 newborn infants were examined by the Estudio Colaborativo Latino Americano de… CONTINUE READING

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