Decrease in combined oral contraceptive use in 15-19 years old Danish women –no increase in the number of unwanted pregnancies
ESC Congress Library. Laursen M. May 4, 2016; 126905; A-079 Disclosure(s): I have nothing to disclose. The work is done during employment at The Danish Health Data Authority
Ms. Maja Laursen
Ms. Maja Laursen
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The new scientific evidence during 2009-2011 discovering higher risk for thromboembolism if using 3rd or 4th generation combined oral contraceptives compared to the use of 2nd generation led to health authority recommendations and a great media attention from 2011 onwards encouraging women to use 2nd generation combined oral contraceptives. We describe the use of combined oral contraceptives in 15-19 years old women in Denmark 2011-2014, the use of other hormonal contraceptives and the concomitant rate of unwanted pregnancies within this age group.



We used data on hormonal contraceptive use from The Register of Medicinal Product Statistics, for pregnancies, we used data from The Register of Legal Abortions and The Birth Register, all registers covers the total population and are located at The Danish Health Data Authority. Data is public available as online statistics (,



Of women, aged 15-19 years 50% are users of combined oral contraceptives. Since 2011, the women changed from 3rd and 4th generation combined oral contraceptives to the recommended 2rd generation. Moreover, the women decreased their use of combined oral contraceptives from 2011 to 2014 and slightly changed their use between the different types of hormonal contraceptives towards remedies containing only progestogens. Rates of births and legal abortions in the same age group decreased concurrently.



The recommendation from the health authorities followed by a heavy media attention from 2011 onwards to change from 3rd and 4th generation combined oral contraceptives to 2nd generation has resulted -more or less- in the intended change; however, it apparently also made young women to reconsider their general use of hormonal contraceptives. We discovered a new trend in a lower use of combined oral contraceptives and a small rise in the use of contraceptives containing only progestogens. The overall decrease in the use of hormonal contraceptives was surprisingly, seen with a simultaneous decrease in number of unwanted pregnancies. 

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