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Maybin J, Watters M, Rowley B, Walker C, Sharp G, Alvergne A. COVID-19 and abnormal uterine bleeding: potential associations and mechanisms. Clin Sci (Lond) 2024; 138:153-171. [PMID: 38372528 PMCID: PMC10876417 DOI: 10.1042/cs20220280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 01/16/2024] [Accepted: 01/29/2024] [Indexed: 02/20/2024]
Abstract
The impact of COVID-19 on menstruation has received a high level of public and media interest. Despite this, uncertainty exists about the advice that women and people who menstruate should receive in relation to the expected impact of SARS-CoV-2 infection, long COVID or COVID-19 vaccination on menstruation. Furthermore, the mechanisms leading to these reported menstrual changes are poorly understood. This review evaluates the published literature on COVID-19 and its impact on menstrual bleeding, discussing the strengths and limitations of these studies. We present evidence consistent with SARS-CoV-2 infection and long COVID having an association with changes in menstrual bleeding parameters and that the impact of COVID vaccination on menstruation appears less significant. An overview of menstrual physiology and known causes of abnormal uterine bleeding (AUB) is provided before discussing potential mechanisms which may underpin the menstrual disturbance reported with COVID-19, highlighting areas for future scientific study. Finally, consideration is given to the effect that menstruation may have on COVID-19, including the impact of the ovarian sex hormones on acute COVID-19 severity and susceptibility and reported variation in long COVID symptoms across the menstrual cycle. Understanding the current evidence and addressing gaps in our knowledge in this area are essential to inform public health policy, direct the treatment of menstrual disturbance and facilitate development of new therapies, which may reduce the severity of COVID-19 and improve quality of life for those experiencing long COVID.
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Affiliation(s)
- Jacqueline A. Maybin
- Centre for Reproductive Health, Institute for Regeneration and Repair, University of Edinburgh, Edinburgh, U.K
| | - Marianne Watters
- Centre for Reproductive Health, Institute for Regeneration and Repair, University of Edinburgh, Edinburgh, U.K
| | - Bethan Rowley
- Centre for Reproductive Health, Institute for Regeneration and Repair, University of Edinburgh, Edinburgh, U.K
| | - Catherine A. Walker
- Centre for Reproductive Health, Institute for Regeneration and Repair, University of Edinburgh, Edinburgh, U.K
| | | | - Alexandra Alvergne
- ISEM, Univ Montpellier, CNRS, IRD, Montpellier, France
- School of Anthropology and Museum Ethnography, Oxford, U.K
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Granese R, Incognito GG, Gulino FA, Casiraro G, Porcaro P, Alibrandi A, Martinelli C, Ercoli A. Effects of SARS-CoV-2 Vaccination on Menstrual Cycle: An Italian Survey-Based Study. J Clin Med 2023; 12:7699. [PMID: 38137768 PMCID: PMC10744112 DOI: 10.3390/jcm12247699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 12/05/2023] [Accepted: 12/13/2023] [Indexed: 12/24/2023] Open
Abstract
Vaccination against SARS-CoV-2 has played a critical role in controlling the spread of the pandemic. The main side effects of SARS-CoV-2 vaccination include fever and fatigue; however, the potential impacts on menstrual cycles are to be determined. Given the limited number of studies suggesting menstrual changes post vaccination, this study investigates the correlation between COVID-19 vaccines and menstrual cycle changes in fertile-aged Italian women. A questionnaire was distributed from 1 October to 31 November 2022, focusing on menstrual rhythm and flow changes post vaccination. The analysis involved 471 participants. The study observed a shift from a regular to an irregular menstrual rhythm (p < 0.001), and changes in menstrual duration (p = 0.008 and p < 0.001 for first and second doses, respectively) and flow volume (p < 0.001). Most patients with irregular rhythms were vaccinated in the proliferative phase of their cycle. Within six months post vaccination, 74.2% of women with irregular post-vaccination rhythms reported a return to normality. These findings indicate primarily transient menstrual changes following mRNA COVID-19 vaccination, suggesting the vaccines' safety for women of reproductive age.
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Affiliation(s)
- Roberta Granese
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, “G. Martino” University Hospital, 98100 Messina, Italy
| | - Giosuè Giordano Incognito
- Department of General Surgery and Medical Surgical Specialties, University of Catania, 95125 Catania, Italy;
| | - Ferdinando Antonio Gulino
- Unit of Gynecology and Obstetrics, Department of Human Pathology of Adults and Developmental Age, “G. Martino” University Hospital, 98100 Messina, Italy; (F.A.G.); (G.C.); (C.M.); (A.E.)
| | - Giorgia Casiraro
- Unit of Gynecology and Obstetrics, Department of Human Pathology of Adults and Developmental Age, “G. Martino” University Hospital, 98100 Messina, Italy; (F.A.G.); (G.C.); (C.M.); (A.E.)
| | - Paola Porcaro
- Department of Obstetrics and Gynecology, “Santa Maria Ungheretti” Hospital, 89024 Polistena, Italy;
| | - Angela Alibrandi
- Unit of Statistical and Mathematical Sciences, Department of Economics, University of Messina, 98100 Messina, Italy;
| | - Canio Martinelli
- Unit of Gynecology and Obstetrics, Department of Human Pathology of Adults and Developmental Age, “G. Martino” University Hospital, 98100 Messina, Italy; (F.A.G.); (G.C.); (C.M.); (A.E.)
| | - Alfredo Ercoli
- Unit of Gynecology and Obstetrics, Department of Human Pathology of Adults and Developmental Age, “G. Martino” University Hospital, 98100 Messina, Italy; (F.A.G.); (G.C.); (C.M.); (A.E.)
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Li S, Liu H, Li D, Chen F. Female reproductive health during the COVID-19 pandemic: latest evidence and understanding. Arch Gynecol Obstet 2023; 308:1691-1696. [PMID: 36856820 PMCID: PMC9976669 DOI: 10.1007/s00404-023-06976-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 02/09/2023] [Indexed: 03/02/2023]
Abstract
PURPOSE The ongoing coronavirus disease 2019 (COVID-19) pandemic, caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has imposed a heavy burden on medical systems. In addition to the respiratory system, the virus also causes injuries to other organs and systems such as the gastroenteric system, kidneys, and reproductive system. Female reproductive health requires more attention in this context. METHODS We have performed a thorough review of the relevant literature that addresses the impacts of SARS-CoV-2 infection and COVID-19 vaccination on the female reproductive system. RESULTS Most evidence shows that SARS-CoV-2 does not infect the female reproductive system. However, the virus may indirectly influence sex hormone concentrations through inflammation associated with cytokine storms and nervous system damage. Menstrual disorders in women infected with SARS-CoV-2 may be caused by down-regulation of angiotensin-converting enzyme 2, abnormal hormone levels, medications, and stress. There is no significant difference in ovarian follicle quality and in vitro fertilization parameters between the pre- and post-COVID-19 vaccination groups. In addition, most symptoms due to side effects of vaccination could recover within a short period of time. CONCLUSION SARS-CoV-2 infection affects female reproductive system function through multiple mechanisms. It is recommended that women of childbearing age be vaccinated with COVID-19 vaccine.
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Affiliation(s)
- Shuhui Li
- Department of Physiology, Jining Medical University, 133 Hehua Road, Jining, 272067, China
| | - Hongxin Liu
- Department of Physiology, Jining Medical University, 133 Hehua Road, Jining, 272067, China
| | - Di Li
- Department of Physiology, Jining Medical University, 133 Hehua Road, Jining, 272067, China
| | - Fei Chen
- Department of Physiology, Jining Medical University, 133 Hehua Road, Jining, 272067, China.
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Kai J, Dutton B, Vinogradova Y, Hilken N, Gupta J, Daniels J. Rates of medical or surgical treatment for women with heavy menstrual bleeding: the ECLIPSE trial 10-year observational follow-up study. Health Technol Assess 2023; 27:1-50. [PMID: 37924269 PMCID: PMC10641716 DOI: 10.3310/jhsw0174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2023] Open
Abstract
Background Heavy menstrual bleeding is a common problem that can significantly affect women's lives until menopause. There is a lack of evidence on longer-term outcomes after seeking health care and treatment for heavy menstrual bleeding. Objectives To assess the continuation rates of medical treatments and the rates of ablative and surgical interventions among women who had participated in the ECLIPSE trial (ISRCTN86566246) 10 years after initial management for heavy menstrual bleeding in primary care. To explore experiences of heavy menstrual bleeding and influences on treatment for women. Design This was a prospective observational cohort study, with a parallel qualitative study. Setting Primary care. Participants A total of 206 women with heavy menstrual bleeding who had participated in the ECLIPSE trial consented to providing outcome data via a questionnaire approximately 10 years after original randomisation. Their mean age at follow-up was 54 years (standard deviation 5 years). A purposeful sample of 36 women also participated in semistructured qualitative interviews. Interventions The ECLIPSE trial randomised participants to either the levonorgestrel-releasing intrauterine system (52 mg) or the usual medical treatment (oral tranexamic acid, mefenamic acid, combined oestrogen-progestogen or progesterone alone, chosen as clinically appropriate by general practitioners and women). Women could subsequently swap or cease their allocated treatment. Main outcome measures The main outcome measures were rates of ablative and surgical treatments; the rate of continuation of medical treatments; and quality of life using the Short Form questionnaire-36 items and EuroQol-5 Dimensions; women's experiences of heavy menstrual bleeding; and the influences on their decisions around treatment. Results Over the 10-year follow-up period, 60 out of 206 (29%) women had received a surgical intervention [hysterectomy, n = 34 (17%); endometrial ablation, n = 26 (13%)]. Between 5 and 10 years post trial intervention, 89 women (43%) had ceased all medical treatments and 88 (43%) were using the levonorgestrel-releasing intrauterine system alone or in combination with other oral treatments. More women in the usual medical treatment group had also used the levonorgestrel-releasing intrauterine system than women in the levonorgestrel-releasing intrauterine system group. Fifty-six women (28%) used the levonorgestrel-releasing intrauterine system at 10 years. There was no statistically significant difference in generic quality-of-life scores between the two original trial groups, although small improvements in the majority of domains were seen in both groups across time. Women reported wide-ranging impacts on their quality of life and normalisation of their heavy menstrual bleeding experience as a result of the taboo around menstruation. Women's treatment decisions and experiences were influenced by the perceived quality of health-care interactions with clinicians and their climacteric status. Limitations Fewer than half of the original 571 participants participated; however, the cohort was clinically and demographically representative of the original trial population. Conclusions Medical treatments for women with heavy menstrual bleeding can be initiated in primary care, with low rates of surgical intervention and improvement in quality of life observed 10 years later. Clinicians should be aware of the considerable challenges that women with heavy menstrual bleeding experience at presentation and subsequently over time, and the importance and value to women of patient-centred communication in this context. Future work Any further evaluation of treatments for heavy menstrual bleeding should include long-term evaluation of outcomes and adherence. Trial registration The original ECLIPSE trial was registered as ISRCTN86566246. Funding This project was funded by the National Institute for Health and Care Research (NIHR) Health Technology Assessment programme and will be published in full in Health Technology Assessment; Vol. 27, No. 17. See the NIHR Journals Library website for further project information.
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Affiliation(s)
- Joe Kai
- Centre for Academic Primary Care, University of Nottingham, Nottingham, UK
| | - Brittany Dutton
- Centre for Academic Primary Care, University of Nottingham, Nottingham, UK
| | - Yana Vinogradova
- Centre for Academic Primary Care, University of Nottingham, Nottingham, UK
| | - Nicholas Hilken
- Nottingham Clinical Trials Unit, University of Nottingham, Nottingham, UK
| | - Janesh Gupta
- Centre for Women's and Newborn Health, University of Birmingham, Birmingham, UK
| | - Jane Daniels
- Nottingham Clinical Trials Unit, University of Nottingham, Nottingham, UK
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Kirby S, Chuang-Stein C. The Acute Stroke Therapy by Inhibition of Neutrophils study - Key features and impact. Pharm Stat 2022; 21:720-728. [PMID: 35819119 DOI: 10.1002/pst.2218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 01/25/2022] [Accepted: 01/25/2022] [Indexed: 11/05/2022]
Abstract
The Acute Stroke Therapy by Inhibition of Neutrophils (ASTIN) study, initiated in November of the year 2000, is now widely recognized as having been a landmark study in the history of clinical trials. We look at why this is the case by considering its key features and impact. These key features are: the use of Bayesian design and analysis; the use of the normal dynamic linear model; the response adaptive nature of the study; the use of real-time dosing decisions; and the use of an integrated model to predict 90-day response on the Scandinavian Stroke Scale. Our overall conclusion is that the ASTIN study's main impact came from showing the clinical trial community the feasibility of the novel design and analysis used when most of these key features were rarely used in industry trials, let alone used together in one trial in a disease area with a tremendous unmet medical need.
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Lebar V, Laganà AS, Chiantera V, Kunič T, Lukanović D. The Effect of COVID-19 on the Menstrual Cycle: A Systematic Review. J Clin Med 2022; 11:jcm11133800. [PMID: 35807090 PMCID: PMC9267255 DOI: 10.3390/jcm11133800] [Citation(s) in RCA: 43] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 06/19/2022] [Accepted: 06/28/2022] [Indexed: 01/17/2023] Open
Abstract
Researchers have been studying COVID-19 from day one, but not much is known about the impact of COVID-19 on the reproductive system, specifically the female reproductive system. There has been substantial anecdotal and media coverage on the effect of COVID-19 on the female reproductive system and changes in the menstrual cycle, but so far available data are not robust enough to draw firm conclusions about the topic. This article was carried out to present already published studies on the correlation between SARS-CoV-2 infection and menstrual cycle changes. A systematic literature search was conducted on the Medline, Scopus, and Cochrane Library databases in accordance with the PRISMA guidelines. Three studies were finally included in the review. The findings of the studies indicate changes in menstrual volume and changes in menstrual cycle length as consequences of SARS-CoV-2 infection; the latter was also the most common menstrual irregularity reported by the included studies. Women have mainly reported decreased menstrual volume and a prolonged cycle. The findings also indicate that the severity of COVID-19 does not play a role in menstrual cycle changes. However, the research on this topic is still too scarce to draw definitive conclusions, and there is a need for further research. The relevant conclusions, which could be drawn only from a well-constructed study, would have a major effect on defining the impact of SARS-CoV-2 infection on the menstrual cycle.
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Affiliation(s)
- Vojka Lebar
- Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia;
| | - Antonio Simone Laganà
- Unit of Gynecologic Oncology, ARNAS “Civico—Di Cristina—Benfratelli”, Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (PROMISE), University of Palermo, 90127 Palermo, Italy; (A.S.L.); (V.C.)
| | - Vito Chiantera
- Unit of Gynecologic Oncology, ARNAS “Civico—Di Cristina—Benfratelli”, Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (PROMISE), University of Palermo, 90127 Palermo, Italy; (A.S.L.); (V.C.)
| | - Tina Kunič
- Department of Gynecology, Division of Gynecology and Obstetrics, Ljubljana Medical Center, Zaloška 2, 1000 Ljubljana, Slovenia;
| | - David Lukanović
- Department of Gynecology, Division of Gynecology and Obstetrics, Ljubljana Medical Center, Zaloška 2, 1000 Ljubljana, Slovenia;
- Correspondence: ; Tel.: +38-615-226-005
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Mahalingam S, Grødeland G. Menstruasjonsforstyrrelser etter koronavaksinering. TIDSSKRIFT FOR DEN NORSKE LEGEFORENING 2022; 142:22-0217. [DOI: 10.4045/tidsskr.22.0217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
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Jain V, Chodankar RR, Maybin JA, Critchley HOD. Uterine bleeding: how understanding endometrial physiology underpins menstrual health. Nat Rev Endocrinol 2022; 18:290-308. [PMID: 35136207 PMCID: PMC9098793 DOI: 10.1038/s41574-021-00629-4] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/21/2021] [Indexed: 12/16/2022]
Abstract
Menstruation is a physiological process that is typically uncomplicated. However, up to one third of women globally will be affected by abnormal uterine bleeding (AUB) at some point in their reproductive years. Menstruation (that is, endometrial shedding) is a fine balance between proliferation, decidualization, inflammation, hypoxia, apoptosis, haemostasis, vasoconstriction and, finally, repair and regeneration. An imbalance in any one of these processes can lead to the abnormal endometrial phenotype of AUB. Poor menstrual health has a negative impact on a person's physical, mental, social, emotional and financial well-being. On a global scale, iron deficiency and iron deficiency anaemia are closely linked with AUB, and are often under-reported and under-recognized. The International Federation of Gynecology and Obstetrics have produced standardized terminology and a classification system for the causes of AUB. This standardization will facilitate future research endeavours, diagnosis and clinical management. In a field where no new medications have been developed for over 20 years, emerging technologies are paving the way for a deeper understanding of the biology of the endometrium in health and disease, as well as opening up novel diagnostic and management avenues.
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Affiliation(s)
- Varsha Jain
- MRC Centre for Reproductive Health, University of Edinburgh, Edinburgh, UK
| | - Rohan R Chodankar
- MRC Centre for Reproductive Health, University of Edinburgh, Edinburgh, UK
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Watters M, Martínez-Aguilar R, Maybin JA. The Menstrual Endometrium: From Physiology to Future Treatments. FRONTIERS IN REPRODUCTIVE HEALTH 2022; 3:794352. [PMID: 36304053 PMCID: PMC9580798 DOI: 10.3389/frph.2021.794352] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 12/20/2021] [Indexed: 01/12/2023] Open
Abstract
Abnormal uterine bleeding (AUB) is experienced by up to a third of women of reproductive age. It can cause anaemia and often results in decreased quality of life. A range of medical and surgical treatments are available but are associated with side effects and variable effectiveness. To improve the lives of those suffering from menstrual disorders, delineation of endometrial physiology is required. This allows an increased understanding of how this physiology may be disturbed, leading to uterine pathologies. In this way, more specific preventative and therapeutic strategies may be developed to personalise management of this common symptom. In this review, the impact of AUB globally is outlined, alongside the urgent clinical need for improved medical treatments. Current knowledge of endometrial physiology at menstruation is discussed, focusing on endocrine regulation of menstruation and local endometrial inflammation, tissue breakdown, hypoxia and endometrial repair. The contribution of the specialised endometrial vasculature and coagulation system during menstruation is highlighted. What is known regarding aberrations in endometrial physiology that result in AUB is discussed, with a focus on endometrial disorders (AUB-E) and adenomyosis (AUB-A). Gaps in existing knowledge and areas for future research are signposted throughout, with a focus on potential translational benefits for those experiencing abnormal uterine bleeding. Personalisation of treatment strategies for menstrual disorders is then examined, considering genetic, environmental and demographic characteristics of individuals to optimise their clinical management. Finally, an ideal model of future management of AUB is proposed. This would involve targeted diagnosis of specific endometrial aberrations in individuals, in the context of holistic medicine and with due consideration of personal circumstances and preferences.
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Affiliation(s)
- Marianne Watters
- Simpson Centre for Reproductive Health, Royal Infirmary of Edinburgh, NHS Lothian, Edinburgh, United Kingdom
| | | | - Jacqueline A. Maybin
- MRC Centre for Reproductive Health, University of Edinburgh, Edinburgh, United Kingdom
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Chao MJ, Menon C, Elgendi M. Effect of COVID-19 vaccination on the menstrual cycle. Front Med (Lausanne) 2022; 9:1065421. [PMID: 36590952 PMCID: PMC9802578 DOI: 10.3389/fmed.2022.1065421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 11/22/2022] [Indexed: 12/23/2022] Open
Abstract
Numerous anecdotal accounts and qualitative research studies have reported on post-vaccination menstrual irregularities in women of reproductive age. However, none have quantified the impact. This is the first systematic review and meta-analysis to quantify and characterize the menstrual irregularities associated with vaccination for women of reproductive age. A search on July 20, 2022, retrieved articles published between December 1, 2019, and July 1, 2022, from MEDLINE, Embase, and Web of Science. The included articles were studies with full texts written in English that reported on menstrual irregularities for vaccinated vs. unvaccinated women of reproductive age. The quality of the studies was evaluated using the Study Quality Assessment Tool for Observation Cohort and Cross-Sectional Studies. Four observational studies were included. Review Manager was used to generating a forest plot with odds ratios (ORs) at the 95% confidence interval (CI), finding statistically significant associations between vaccination and menstrual irregularities for 25,054 women of reproductive age (OR = 1.91, CI: 1.76-2.07) with a significant overall effect of the mean (Z = 16.01, p < 0.0001). The studies were heterogeneous with significant dispersion of values (χ2 = 195.10 at df = 3, p < 0.00001, I 2 = 98%). The findings of this systematic review and meta-analysis are limited by the availability of quantitative data. The results have implications for treating women of reproductive age with menstrual irregularities and informing them about the potential side effects of vaccinations.
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Affiliation(s)
- Melissa Jung Chao
- Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Carlo Menon
- Biomedical and Mobile Health Technology Lab, Department of Health Sciences and Technology, ETH Zürich, Zurich, Switzerland
| | - Mohamed Elgendi
- Biomedical and Mobile Health Technology Lab, Department of Health Sciences and Technology, ETH Zürich, Zurich, Switzerland
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Palmer CR. An ethically-motivated, Bayesian, adaptive design clinical trial bringing hope to women with menorrhagia…and warmth to statisticians' hearts. EBioMedicine 2021; 69:103461. [PMID: 34224974 PMCID: PMC8264100 DOI: 10.1016/j.ebiom.2021.103461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 06/11/2021] [Indexed: 11/29/2022] Open
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