[Overtreatment in couples with unexplained subfertility].

Objective: To assess adherence to expectant management of 6-12 months in couples with unexplained subfertility, as recommended by the Dutch Networkguideline Subfertility.

Design: A retrospective cohort study in 25 clinics.

Method: Couples were eligible to participate if they were diagnosed with unexplained subfertility and had a good prognosis of natural conception within one year (>30%), for these couples the network guideline recommends an expectant management.

Improving the implementation of tailored expectant management in subfertile couples: protocol for a cluster randomized trial.

Background: Prognostic models in reproductive medicine can help to identify subfertile couples who would benefit from fertility treatment. Expectant management in couples with a good chance of natural conception, i.e.