ArticleObstetrics and gynecology2017
Contraception and Conception After Bariatric Surgery.
Article in Obstetrics and gynecology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00465829 (Longitudinal Assessment of Bariatric Surgery), which is not on this map. Cited by 15 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Longitudinal Assessment of Bariatric Surgery (LABS-2)
Who cites it
15 citing papers in PubMed, 43 citations in OpenAlex.
- Predicting pregnancy at the first year following metabolic-bariatric surgery: development and validation of machine learning models.Surgical endoscopy · 2025Article
- Pregnancy Outcomes After Bariatric Surgery: Importance of Maternal Ferritin on Birth Weight.Obesity surgery · 2024Observational
- Maternal and Neonatal Outcomes of Pregnancy within 7 years after Roux-Y Gastric Bypass or Sleeve Gastrectomy Surgery.Obesity surgery · 2023Article
- Perception and Practice of Bariatric Surgery and Reproductive Health in Women: a Cross-sectional Study of Chinese Bariatric Surgeons.Obesity surgery · 2023Article
- Nutritional Assessment and Preparation for Adult Bariatric Surgery Candidates: Clinical Practice.Advances in nutrition (Bethesda, Md.) · 2021Review
- Women in larger bodies' experiences with contraception: a scoping review.Reproductive health · 2021Article
- Pregnancy after bariatric surgery - a narrative literature review.Wideochirurgia i inne techniki maloinwazyjne = Videosurgery and other miniinvasive techniques · 2021Review
- The Impact of Bariatric Surgery on Menstrual Abnormalities-a Cross-Sectional Study.Obesity surgery · 2020Article
- Pharmacokinetics of Oral Levonorgestrel in Women After Roux-en-Y Gastric Bypass Surgery and in BMI-Matched Controls.Obesity surgery · 2020Article
- Clinical Practice Guidelines for Childbearing Female Candidates for Bariatric Surgery, Pregnancy, and Post-partum Management After Bariatric Surgery.Obesity surgery · 2019Review
- Pregnancy after bariatric surgery: Consensus recommendations for periconception, antenatal and postnatal care.Obesity reviews : an official journal of the International Association for the Study of Obesity · 2019Review
- Healthcare provider knowledge regarding oral contraception effectiveness for women with a history of bariatric malabsorptive procedures.Surgery for obesity and related diseases : official journal of the American Society for Bariatric Surgery · 2019Article
- Sexual behaviors, risks, and sexual health outcomes for adolescent females following bariatric surgery.Surgery for obesity and related diseases : official journal of the American Society for Bariatric Surgery · 2019Article
- Conception rates and contraceptive use after bariatric surgery among women with infertility: Evidence from a prospective multicenter cohort study.Surgery for obesity and related diseases : official journal of the American Society for Bariatric Surgery · 2019Article
- Management of Pregnant Women after Bariatric Surgery.Journal of obesity · 2018Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
14 authors at 1 institution in 1 country.
Funding
Abstract
objectiveTo examine contraceptive practices and conception rates after bariatric surgery.
methodsThe Longitudinal Assessment of Bariatric Surgery-2 is a multicenter, prospective cohort study of adults undergoing first-time bariatric surgery as part of routine clinical care at 10 U.S. hospitals. Recruitment occurred between 2005 and 2009. Participants completed preoperative and annual postsurgical assessments for up to 7 years until January 2015. This report was restricted to women 18-44 years old with no history of menopause, hysterectomy, or estrogen and progesterone therapy. Primary outcomes were self-reported contraceptive practices, overall conception rate, and early (less than 18 months) postsurgical conception. Contraceptive practice (no intercourse, protected intercourse, unprotected intercourse, or tried to conceive) was classified based on the preceding year. Conception rates were determined from self-reported pregnancies.
resultsOf 740 eligible women, 710 (95.9%) completed follow-up assessment(s). Median (interquartile range) preoperative age was 34 (30-39) years. In the first postsurgical year, 12.7% (95% CI 9.4-16.0) of women had no intercourse, 40.5% (95% CI 35.6-45.4) had protected intercourse only, 41.5% (95% CI 36.4-46.6) had unprotected intercourse while not trying to conceive, and 4.3% (95% CI 2.4-6.3) tried to conceive. The prevalence of the first three groups did not significantly differ across the 7 years of follow-up (P for all >.05); however, more women tried to conceive in the second year (13.1%, 95% CI 9.3-17.0; P<.001). The conception rate was 53.8 (95% CI 40.0-71.1) per 1,000 woman-years across follow-up (median [interquartile range] 6.5 [5.9-7.0] years); 42.3 (95% CI 30.2-57.6) per 1,000 woman-years in the 18 months after surgery. Age (adjusted relative risk 0.41 [95% CI 0.19-0.89] per 10 years, P=.03), being married or living as married (adjusted relative risk 4.76 [95% CI 2.02-11.21], P<.001), and rating future pregnancy as important preoperatively (adjusted relative risk 8.50 [95% CI 2.92-24.75], P<.001) were associated with early conception.
conclusionsPostsurgical contraceptive use and conception rates do not reflect recommendations for an 18-month delay in conception after bariatric surgery. CLINICAL
trial registrationClinicalTrials.gov, NCT00465829.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.