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. 2018 Oct 25;18(1):175.
doi: 10.1186/s12905-018-0665-2.

The prevalence of primary ovarian insufficiency in Sweden; a national register study

Katarina Lagergren  1 , Mats Hammar  1 , Elizabeth Nedstrand  1 , Marie Bladh  1 , Gunilla Sydsjö  2
Affiliations

The prevalence of primary ovarian insufficiency in Sweden; a national register study

Katarina Lagergren et al. BMC Womens Health. .

Abstract

Background: The current estimates of the prevalence of primary ovarian insufficiency (POI) are very variable, but are in most studies believed to be around 1%. It is also very likely tat the prevalence of POI differs between countries and over time. We therefore aimed to assess the prevalence of primary ovarian insufficiency in Sweden.

Methods: All 1,036,918 women born between 1973 and 1993 in Sweden were included. The prevalence of POI was based on data from the Swedish Patient Register through the diagnosis code or through the Prescribed Drug Register. The number of women below 40 years of age diagnosed with the ICD-10 diagnoses E28.3 or E89.4, and women who had been dispensed drugs for treatment of climacteric symptoms were included.

Results: Out of the 1,036,918 women, 19,253 (1.9%) had POI. The prevalence of spontaneous POI was 1.7% and the prevalence of iatrogenic POI was 0.2%. Most women (98.8%) with POI were identified from the Prescribed Drug Register; only 4.1% were found in the Patient Register, whereas 2.9% were identified in both registers.

Conclusions: The total prevalence of POI was 1.9%, 95% CI: 1.7-2.1, indicating a higher prevalence than often previously reported.

Keywords: Prevalence; Primary ovarian insufficiency; Register study.

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Conflict of interest statement

Ethics approval and consent to participate

Ethical approval was obtained from the Regional Ethics Committee Board in Linköping, Sweden No. 03–556, 03–557, 07-M66 08–08-M 233–8, 2010/403–31. Patient consent: Not applicable to this study being a register study.

Consent for publication

Not applicable

Competing interests

The authors declare that they have no competing interests.

Publisher’s Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

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