Effects of family history and place and season of birth on the risk of schizophrenia.

@article{Mortensen1999EffectsOF,
  title={Effects of family history and place and season of birth on the risk of schizophrenia.},
  author={P. Mortensen and C. Pedersen and T. Westergaard and J. Wohlfahrt and H. Ewald and O. Mors and P. Andersen and M. Melbye},
  journal={The New England journal of medicine},
  year={1999},
  volume={340 8},
  pages={
          603-8
        }
}
BACKGROUND Although a family history of schizophrenia is the best-established risk factor for schizophrenia, environmental factors such as the place and season of birth may also be important. METHODS Using data from the Civil Registration System in Denmark, we established a population-based cohort of 1.75 million persons whose mothers were Danish women born between 1935 and 1978. We linked this cohort to the Danish Psychiatric Central Register and identified 2669 cases of schizophrenia among… Expand
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