Menstrual symptoms by intrauterine device type. Menstrual symptoms by intrauterine device type. Percentage of women reporting symptoms at 6 months of 64 levonorgestrel intrauterine system (LNG-IUS) users and 19 Cu T 380A intrauterine device users. *p<0.05 for difference between LNG-IUS and Cu T 380A. Alexandra M Hall, and Beth A Kutler J Fam Plann Reprod Health Care doi:10.1136/jfprhc-2014-101046 Copyright © by the BMJ Publishing Group Ltd & the Faculty of Sexual & Reproductive Healthcare of the Royal College of Obstetricians & Gynaecologists. All rights reserved.