Risk of multiple sclerosis inversely associated with birth order position.

  title={Risk of multiple sclerosis inversely associated with birth order position.},
  author={H Isager and Else Andersen and K Hyllested},
  journal={Acta neurologica Scandinavica},
  volume={61 6},
The aim of this study was to ascertain whether there is an association between risk of multiple sclerosis (MS) and birth order position. Our reference population was 198,000 persons born in the period 1930-50 and recorded in the register of school health records from the school health service of the Copenhagen council. We compared 46 persons from the register who had developed MS with matched controls from the register, three for each case. An inverse association between risk of MS and birth… CONTINUE READING

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