SynthesisNutrients2020
Fennel for Reducing Pain in Primary Dysmenorrhea: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.
Synthesis in Nutrients, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.
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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
10 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Efficacy of Plant-Derived Therapies for Primary Dysmenorrhea: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.Phytotherapy research : PTR · 2026Pooled it
- Real-life use of non-pharmacological strategies and their relationship with symptom burden in primary dysmenorrhea: a cross-sectional study.BMC complementary medicine and therapies · 2026Article
- Clinical evidence on integrated Chinese-Western medicine for primary dysmenorrhea.Integrative medicine research · 2026Article
- Perception of university students about the use of painkillers, other remedies and lifestyle modifications for primary dysmenorrhea; a cross-sectional study at KEMU.BMC women's health · 2025Article
- Dysmenorrhea and Its Impact on Patients' Quality of Life-A Cross-Sectional Study.Journal of clinical medicine · 2024Article
- Self-management of primary dysmenorrhea-related pain: cross-sectional study on non-pharmacological interventions.Pain management · 2024Article
- Development of the Korean Medicine Core Outcome Set for Primary Dysmenorrhea (COS-PD-KM) for Herbal Medicine Treatment of Primary Dysmenorrhea in Primary Clinics.International journal of environmental research and public health · 2022Review
- Safety and tolerability of Pau d' Arco (Advances in integrative medicine · 2022Article
- Nutrition in Gynecological Diseases: Current Perspectives.Nutrients · 2021Review
- Ethnopharmacological Survey of Traditional Chinese Medicine Pharmacy Prescriptions for Dysmenorrhea.Frontiers in pharmacology · 2021Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
Abstract
Fennel is used as an alternative treatment for primary dysmenorrhea. This review aims to evaluate the effectiveness and safety of fennel for reducing pain in primary dysmenorrhea. Twenty databases, including English, Korean, Chinese, Japanese, Iranian, and Spanish databases, were searched from inception to 20 October 2020. All randomized controlled trials (RCTs) investigating the effectiveness of fennel for treating primary dysmenorrhea were considered. Two reviewers conducted the data extraction and risk of bias assessment independently. Any discrepancies were resolved through discussion with a third reviewer. A total of 12 studies were included in this review. The pooled results of seven trials showed that the effect of fennel is similar to that of conventional drug therapies in alleviating pain (
Indexed as
Identifiers
What OpenQuestion holds
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.