Pregnancy during the use of levonorgestrel intrauterine system.

Objectives: This study was undertaken to evaluate the pregnancy rate with the levonorgestrel intrauterine system (LNG IUS) and to analyze the outcome of pregnancies with the LNG IUS in situ in regular use.

Study Design: Questionnaires from 17,360 users of the LNG IUS were analyzed. With the consent of women reporting pregnancy during the use of the LNG IUS, related hospital records were reviewed concerning the pregnancies.

Advance information improves user satisfaction with the levonorgestrel intrauterine system.

Objective: To evaluate parameters associated with and the impact of advance information given in a regular outpatient setting on user satisfaction with the levonorgestrel-releasing intrauterine system.

Methods: A questionnaire was sent to 23,885 women in Finland who had had a levonorgestrel intrauterine system inserted between 1990 and 1993. The number of returned questionnaires was 17,914 (response rate 75%).