Concordance of symptoms in recurrent depressive episodes.

@article{Young1990ConcordanceOS,
  title={Concordance of symptoms in recurrent depressive episodes.},
  author={Michael R A Young and Louis F. Fogg and William A. Scheftner and Jan A. Fawcett},
  journal={Journal of affective disorders},
  year={1990},
  volume={20 2},
  pages={79-85}
}
The presence or absence of 12 depressive symptoms was examined in 93 bipolar and 108 unipolar patients who had two discrete episodes of major depression over a 5-year period. For each symptom the concordance of its presence or absence across episodes was low. The agreement observed was largely that to be expected by chance. A substantial amount of concordance was obtained if differences in episode intensity (propensity to have symptoms) were taken into account. This suggests that although there… CONTINUE READING

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