Table 2.

Inclusion and Exclusion Criteria

Inclusion Criteria - This study will be offered to women at the study sites who meet all of the following criteria:
Have completed informed consent for an abortion over 12 and under 24 weeks gestational age.
Have chosen an IUC (either LNG-IUC or CuT380-IUC) for contraception post abortion.
Are residents of British Columbia registered with the Medical Services Plan health care system.
Exclusion Criteria
Intention to move from BC within the next year
Intention to conceive within the next year
Uterine cavity anomalies causing distortion of the endometrial canal including fibroids of more than 5 cm, excluding repaired uterine septum
Current untreated PID, Chlamydia, gonorrhea, cervicitis or lower genital tract infection (recent infection is not a contraindication to IUC insertion[35])
Wilson's Disease (if choosing a CuT380-IUC)
Undiagnosed abnormal uterine bleeding
Known uterine or cervical malignancy or cervical dysplasia
Known or suspected progestin-dependent neoplasia, including breast cancer (if choosing a LNG-IUC)
Active liver disease or dysfunction (if choosing a LNG-IUC)
Actual benign or malignant liver tumours (if choosing a LNG-IUC)
Hypersensitivity to levonorgestrel or any of the other ingredients in the formulation or component of the container components of Mirena® (if choosing a LNG-IUC)
Bacterial endocarditis
Established immunodeficiency (HIV positivity is not an exclusion unless immunodeficient)
Acute malignancies affecting blood or leukemias
Recent trophoblastic disease while hCG levels are elevated
Currently enrolled in another investigational study
Post Randomization Exclusion Criteria
Failure to undergo an abortion (ie: participants who elect to continue their index pregnancy at any time subsequent to randomization)
Uterine perforation at the time of abortion
Bleeding of more than 500 cc during abortion
Uterine cavity anomalies as outlined above