Preconception lifestyle advice for people with subfertility
Abstract
BACKGROUND: Infertility is a prevalent problem and has significant consequences for individuals, families and the wider community. People's chance of having a healthy, live birth may be impacted upon by factors such as weight, diet, smoking, other substance abuse, environmental pollutants, infections, medical conditions, medications and family medical history. However, there is no current guideline about what preconception advice should be offered to people presenting for infertility treatment. It is important to determine what preconception advice should be given about these types of factors to such people in order to help them to make positive changes and hopefully improve their chances of conception and delivering a healthy, live baby. OBJECTIVES: To assess the effects of preconception advice on the chances of a live birth for people who perceive that they may be infertile and are investigating the possibility of medical treatment to address subfertility. SEARCH STRATEGY: All published and unpublished randomised controlled trials addressing preconception advice to influence lifestyle factors in people who perceived that they may be infertile and investigated the possibility of medical treatment to address subfertility were sought from the Cochrane Menstrual Disorders and Subfertility Review Group Trials Register, Cochrane Central Register of Controlled Trials (CENTRAL), The Cochrane Library, MEDLINE, PubMed, EMBASE, PsycINFO, AMED, Cumulative Index to Nursing and Allied Health Literature (CINAHL), LILACS, trial registers for ongoing and registered trials, citation indexes, ISI Web of Knowledge, Clinical Study Results database, OpenSIGLE database, China National Knowledge Infrastructure (CNKI) Periodical Index and Google (inception to 5 October 2009). SELECTION CRITERIA: Only randomised controlled trials (RCTs), including cluster-randomised (group-randomised) trials, that considered preconception advice given to individuals who perceived that they may be infertile and were investigating the possibility of medical treatment from subfertility specialist services were eligible for inclusion. The primary outcome was live birth, defined as delivery of a live fetus after 20 completed weeks of gestation. DATA COLLECTION AND ANALYSIS: Two review authors independently applied eligibility criteria to, extracted data from and assessed the risk of bias in the single included trial. MAIN RESULTS: One trial assessing smoking cessation advice for 94 infertile women smokers fulfilled the criteria for this review, but the trial did not report on the review's primary outcome of live birth or any other fertility-related outcomes. This trial of women attending a fertility clinic showed that smoking cessation advice tailored to a woman's "stage-of-change" (readiness to stop smoking) did not show significant evidence of a difference in stage (including smoking cessation rates) compared with standard clinical advice. AUTHORS' CONCLUSIONS: No RCTs were located that assessed the effects of preconception advice on the chance of a live birth or other fertility outcomes in people who perceived that they may be infertile and were investigating the possibility of medical treatment to address subfertility. Given the lack of RCTs evaluating the effectiveness of preconception lifestyle advice for people in the afore-mentioned population, this review cannot provide guidance for clinical practice in this area. However, it does highlight the need for further research into this important subject.
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The first version of this Cochrane Review found no RCTs assessing preconception advice effects on live birth or other fertility outcomes in people with infertility.
“For the first version of this review, the search identified no RCTs that assessed effects of preconception advice on the chance of live birth or other fertility outcomes in people with a diagnosis of infertility, and the need for further research into this topic was highlighted (Anderson 2010).”
From Preconception lifestyle advice for people with infertility (2021) · cites this paper as Anderson 2010
The review included seven parallel-design randomised controlled trials with 2130 participants in total.
“We included seven parallel-design RCTs with a total of 2130 participants, including Hughes 2000, which was the only included study in the 2010 version of this systematic review (Anderson 2010).”
From Preconception lifestyle advice for people with infertility (2021) · cites this paper as Anderson 2010
In the first edition of this Cochrane review, the need for further research was highlighted because no available RCTs had assessed the effects of preconception advice on live birth or other fertility outcomes in people with diagnosed infertility.
“In the first edition of this Cochrane systematic review, the need for further research into this subject was highlighted, as no available RCTs had assessed the effects of preconception advice on the chance of live birth or other fertility outcomes in people with diagnosed infertility (Anderson 2010).”
From Preconception lifestyle advice for people with infertility (2021) · cites this paper as Anderson 2010
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- Authors
- Anderson, K., Norman, R. J., & Middleton, P.
- Affiliations
- The University of Adelaide (AU)
- Women's and Children's Hospital (AU)
- Venue
- Cochrane Database of Systematic Reviews
- Publisher
- Wiley
- Published
- 2010-04-14
- Issue
- 4
- Pages
- CD008189-CD008189
- ISSN
- 1361-6137 (ISSN-L)
- 1465-1858
- OpenAlex
- W2168207554
- Cited by
- 85
- References
- 80
- Citations by year
- 2025: 4 · 2024: 2 · 2023: 2 · 2022: 5 · 2021: 3 · 2020: 8 · 2019: 7 · 2018: 6 · 2017: 7 · 2016: 7 · 2015: 9 · 2014: 5 · 2013: 6 · 2012: 7
- FWCI
- 0.85
- Type
- journal article
- Language
- en
- Update notices
- new_version (2021-04-29)
- Open access
- closed
- Locations
- Cochrane Database of Systematic Reviews (publishedVersion)
- PubMed (publishedVersion)
- Adelaide Research & Scholarship (AR&S) (University of Adelaide) (submittedVersion)
- Topics
- Health Sciences › Medicine › Reproductive Medicine › Reproductive Health and Technologies
- Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Reproductive Health and Contraception
- Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Assisted Reproductive Technology and Twin Pregnancy
- Keywords
- subfertility, infertility, smoking cessation, live birth, physical activity
- MeSH terms
- Counseling, Female, Humans, Infertility, Life Style, Smoking Cessation, Preconception Care, Live Birth
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
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