Time to pregnancy: results of the German prospective study and impact on the management of infertility.

  title={Time to pregnancy: results of the German prospective study and impact on the management of infertility.},
  author={Christian Gnoth and Dietmar Godehardt and Erhard Godehardt and Petra Frank-Herrmann and G{\"u}nter Freundl},
  journal={Human reproduction},
  volume={18 9},
BACKGROUND The likelihood of spontaneous conception in subsequent cycles is important for a balanced management of infertility. Previous studies on time to pregnancy are mostly retrospective and biased because of exclusion of truly infertile couples. The study aim was to present a non-parametric estimation of cumulative probabilities of conception (CPC) in natural family planning (NFP) users illustrating an ideal of human fertility potential. METHODS A total of 346 women was observed who used… 

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