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Departments: Correction

Effectiveness of Fertility Awareness-Based Methods for Pregnancy Prevention: A Systematic Review: Correction

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doi: 10.1097/AOG.0000000000003142
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There are several errors in the Appendixes in the article by Peragallo Urrutia et al in the September 2018 issue.1

In Appendix 5, the following data were corrected in the “No. of Quality Criteria With High Rating (Out of 13)” column:

  • • Burkhart 2000: 6 high quality markers instead of 8 (p. 17)
  • • Gribble 2008: 5 high quality markers instead of 4 (p. 17)
  • • Fehring 2013: 6 high quality markers instead of 7 (p. 21)
  • • Berglund 2016: 4 high quality markers instead of 5 (p. 22)
  • • Fehring 2017: 4 high quality markers instead of 5 (p. 22)

In Appendix 6, the following changes were made:

  • • Information was added to describe proposed rank numbers for detailed quality ranking tables: “Note: for proposed rank, 1 means high quality, 2 means moderate quality, 2* means moderate quality for a criterion for which there was no low-quality marker, and 3 means low quality.” See page 31.
  • • The Statistical methods in the “Bonnar 1999 Quality criteria rankings” was changed to read, “Single decrement life table analysis excluding cycles with no intercourse per communication with author G. Freundl. Given not stated clearly in publication, will rank this a 2 and not a 1.”

A corrected Appendixes file appears with this Correction online at


1. Peragallo Urrutia R, Polis CB, Jensen ET, Greene ME, Kennedy E, Stanford JB. Effectiveness of fertility awareness-based methods for pregnancy prevention: a systematic review. Obstet Gynecol 2018;132:591–604.

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