Original research
Adverse pregnancy and birth outcomes associated with Mycoplasma hominis, Ureaplasma urealyticum and Ureaplasma parvum: a systematic review and meta-analysis
Compose Response

Plain text

  • No HTML tags allowed.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Lines and paragraphs break automatically.
Author Information
First or given name, e.g. 'Peter'.
Your last, or family, name, e.g. 'MacMoody'.
Your email address, e.g.
Your role and/or occupation, e.g. 'Orthopedic Surgeon'.
Your organization or institution (if applicable), e.g. 'Royal Free Hospital'.
Statement of Competing Interests


  • A rapid response is a moderated but not peer reviewed online response to a published article in a BMJ journal; it will not receive a DOI and will not be indexed unless it is also republished as a Letter, Correspondence or as other content. Find out more about rapid responses.
  • We intend to post all responses which are approved by the Editor, within 14 days (BMJ Journals) or 24 hours (The BMJ), however timeframes cannot be guaranteed. Responses must comply with our requirements and should contribute substantially to the topic, but it is at our absolute discretion whether we publish a response, and we reserve the right to edit or remove responses before and after publication and also republish some or all in other BMJ publications, including third party local editions in other countries and languages
  • Our requirements are stated in our rapid response terms and conditions and must be read. These include ensuring that: i) you do not include any illustrative content including tables and graphs, ii) you do not include any information that includes specifics about any patients,iii) you do not include any original data, unless it has already been published in a peer reviewed journal and you have included a reference, iv) your response is lawful, not defamatory, original and accurate, v) you declare any competing interests, vi) you understand that your name and other personal details set out in our rapid response terms and conditions will be published with any responses we publish and vii) you understand that once a response is published, we may continue to publish your response and/or edit or remove it in the future.
  • By submitting this rapid response you are agreeing to our terms and conditions for rapid responses and understand that your personal data will be processed in accordance with those terms and our privacy notice.
This question is for testing whether or not you are a human visitor and to prevent automated spam submissions.

Vertical Tabs

Other responses

Jump to comment:

  • Published on:
    Mollicutes and adverse pregnancy outcomes: A challenging research area to navigate
    • Axel Skafte-Holm, MD Statens Serum Institut, Copenhagen, Denmark
    • Other Contributors:
      • Thomas Roland Pedersen, Cand. Scient. Biology
      • Jørgen Skov Jensen, Consultant physician, MD, PhD, DMedSci.

    Axel Skafte-Holm 1, Thomas Roland Pedersen 1 and Jørgen Skov Jensen 1*
    1 Department of Bacteria, Parasites and Fungi, Research Unit for Reproductive Microbiology, Statens Serum Institut, Copenhagen, Denmark

    *Corresponding author
    Jørgen Skov Jensen
    Consultant physician, MD, PhD, DMedSci.
    Statens Serum Institute
    5 Artillerivej
    DK-2300 Copenhagen S
    Research Unit for Reproductive Microbiology.
    Division of Diagnostic Infectious Disease Preparedness
    Telephone +45 3268 3636

    To the Editor,

    We read with interest the systematic review and meta-analysis by Jonduo et al. [1], investigating the association between Mycoplasma (M.) hominis, Ureaplasma (U.) urealyticum and U. parvum colonisation of the genital tract of pregnant women and adverse pregnancy outcomes. This is a highly relevant analysis, as this subject is a matter of ongoing debate, due to the complex interactions with other microbial and non-microbial factors. It is also a subject where enormous taxonomic confusion exists due to the re-classification of the ureaplasmas. We were, consequently, interested in the comprehensive analysis on the relative importance of the two Ureaplasma spp. Unfortunately, we detected some shortcomings, which need to be discussed.
    (I) Culture-based studies. The review excluded articles published before the year 2000 if unspeciated U. urealyticum were re...

    Show More
    Conflict of Interest:
    Jørgen Skov Jensen reports grants, personal fees, and non-financial support from Hologic, personal fees from Roche, grants and personal fees from SpeeDx, grants and personal fees from Nabriva, grants and personal fees from Cepheid, grants and personal fees from Abbott, and grants and personal fees from GSK all outside the submitted work.
    The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.