scholarly journals Prevalence of HER2 overexpression and amplification in uterine cervical cancer: a systematic review and a meta-analysis.

2021 ◽  
Author(s):  
Boris Itkin ◽  
Agustin Garcia ◽  
Samanta Straminsky ◽  
Eduardo Daniel Adelchanow ◽  
Matias Pereyra ◽  
...  
Keyword(s):  
Systematic Review ◽  
Cervical Cancer ◽  
Meta Analysis ◽  
Tumor Stage ◽  
Uterine Cervical Cancer ◽  
Geographic Region ◽  
Her2 Overexpression ◽  
Her2 Positive ◽  
Pooled Prevalence ◽  
Her2 Positivity

Abstract BackgroundThe reported rates of HER2 positivity in uterine cervical cancer (CC) range from 0–87%. The organization of clinical studies of HER2 targeting agents in CC requires a better knowledge of HER2 positivity prevalence. We aimed to provide precise estimates of HER2 overexpression and amplification in CC.MethodsWe conducted a PRISMA compliant meta-analytic systematic review. We searched electronic databases for articles reporting the proportion of HER2 positivity by immunohistochemistry or in situ hybridization in CC. We performed descriptive analyses of all 65 included studies. Of these, we selected 26 studies that used standardized American Society of Clinical Oncology / College of American Pathologists (ASCO/CAP) Guidelines compliant methodology. We conducted several meta-analyses of proportions to estimate the pooled prevalence of HER2 positivity and subgroup analyses using geographic region, histology, tumor stage, primary antibody brand, study size, and publication year as moderators.ResultsThe estimated pooled prevalence of HER2 overexpression was 5.7% (CI 95%: 1.5–11.7%) in ASCO/CAP compliant studies and 27.0%, (CI 95%: 19.9–34.8%) in ASCO/CAP non-compliant ones, p < 0.001. The estimated pooled prevalence of HER2 amplification was 1.2% (CI 95%: 0.0–5.8%) and 24.9% (CI 95%: 12.6–39.6%), respectively, p = 0.004. No other factor was significantly associated with HER2 positivity rates.ConclusionA small proportion of CC is expected to be HER2 positive. Variations in previously reported HER2 positivity rates are mainly related to methodological issues.

scholarly journals Prevalence of HER2 overexpression and amplification in cervical cancer: A systematic review and meta-analysis

PLoS ONE ◽  
2021 ◽  
Vol 16 (9) ◽  
pp. e0257976
Author(s):  
Boris Itkin ◽  
Agustin Garcia ◽  
Samanta Straminsky ◽  
Eduardo Daniel Adelchanow ◽  
Matias Pereyra ◽  
...  
Keyword(s):  
Systematic Review ◽  
Cervical Cancer ◽  
Meta Analysis ◽  
Grey Literature ◽  
Geographic Region ◽  
Her2 Status ◽  
Her2 Overexpression ◽  
Her2 Positive ◽  
Pooled Prevalence ◽  
Her2 Positivity

The reported rates of HER2 positivity in cervical cancer (CC) range from 0% to 87%. The importance of HER2 as an actionable target in CC would depend on HER2 positivity prevalence. Our aim was to provide precise estimates of HER2 overexpression and amplification in CC, globally and by relevant subgroups. We conducted a PRISMA compliant meta-analytic systematic review. We searched Medline, EMBASE, Cochrane database, and grey literature for articles reporting the proportion of HER2 positivity in CC. Studies assessing HER2 status by immunohistochemistry or in situ hybridization in invasive disease were eligible. We performed descriptive analyses of all 65 included studies. Out of these, we selected 26 studies that used standardized American Society of Clinical Oncology / College of American Pathologists (ASCO/CAP) Guidelines compliant methodology. We conducted several meta-analyses of proportions to estimate the pooled prevalence of HER2 positivity and subgroup analyses using geographic region, histology, tumor stage, primary antibody brand, study size, and publication year as moderators. The estimated pooled prevalence of HER2 overexpression was 5.7% (CI 95%: 1.5% to 11.7%) I2 = 87% in ASCO/CAP compliant studies and 27.0%, (CI 95%: 19.9% to 34.8%) I2 = 96% in ASCO/CAP non-compliant ones, p < 0.001. The estimated pooled prevalence of HER2 amplification was 1.2% (CI 95%: 0.0% to 5.8%) I2 = 0% and 24.9% (CI 95%: 12.6% to 39.6%) I2 = 86%, respectively, p = 0.004. No other factor was significantly associated with HER2 positivity rates. Our results suggest that a small, but still meaningful proportion of CC is expected to be HER2-positive. High heterogeneity was the main limitation of the study. Variations in previously reported HER2 positivity rates are mainly related to methodological issues.

scholarly journals 814P Prevalence of HER2 overexpression and amplification in uterine cervical cancer: A systematic review and a meta-analysis

2021 ◽  
Vol 32 ◽  
pp. S767
Author(s):  
B. Itkin ◽  
S. Straminsky ◽  
A. Garcia ◽  
E.D. Adelchanow ◽  
M. Pereyra ◽  
...  
Keyword(s):  
Systematic Review ◽  
Cervical Cancer ◽  
Meta Analysis ◽  
Uterine Cervical Cancer ◽  
Her2 Overexpression

scholarly journals Burden of cervical lesion in Ethiopia: Systematic review and meta-analysis

2019 ◽  
Author(s):  
Ayele Semachew ◽  
Tadesse Dagget ◽  
Yeshiwork Beyene ◽  
Getnet Dessie ◽  
Aklilu Endalamaw ◽  
...  
Keyword(s):  
Systematic Review ◽  
Cervical Cancer ◽  
Meta Analysis ◽  
Random Effect ◽  
Random Effect Model ◽  
Cervical Lesion ◽  
Online Databases ◽  
Pooled Prevalence ◽  
Meta Regression Analysis ◽  
Study Participants

Abstract Though cervical cancer is largely preventable, it is still the second most common female cancer globally and the leading cause of cancer deaths among females in African. Though many efforts has been done to study the burden of the disease in Ethiopia, there are still fragmented primary studies reported cervical lesion. Hence, this systematic review and meta-analysis aimed in estimating the pooled prevalence of cervical cancer and its trend in Ethiopia. Methods: This systematic review and meta-analysis was conducted using available data. PubMed, Web of Science, SCOPUS, Science Direct, Google Scholar, African Index Medicus (AIM), African Journals Online databases and Ethiopian University research repositories were searched following the Preferred Items for Systematic review and Meta-analysis (PRISMA) guideline. STATA 15 statistical software was used to analyse the data. The quality of included studies was assessed using the Joanna Briggs Institute (JBI) quality appraisal tool for meta-analysis. Heterogeneity between studies was assessed using Cochrane Q test and I2 test statistics based on the random effects model. A random effect model was computed to estimate the pooled prevalence of cervical lesion in Ethiopia. In addition, the trend of cervical lesion in the country was depicted. Result: Fifteen studies with a total of 25,348 participants were included in the analysis. The overall pooled prevalence of cervical lesion was 16.36 (95 CI: 10.97-21.75). The subgroup analysis by region showed the highest prevalence of cervical lesion at the Southern Nations and Nationalities Peoples Region (19.65%; 95% CI: 15.51 – 23.80). The trend of cervical lesion showed an increased pattern overtime from 1992 to 2018 in the meta-regression analysis. Conclusion: One among six of the study participants had cervical lesion. The trend also showed that there is still an increased cervical lesion in the country. Best practices in achieving high vaccination coverage shall be adapted from other successful countries. Key words: Cervical cancer, cervical lesion, systematic review, Ethiopia

scholarly journals Association of human papilloma Virus infection other than cervical cancer: Systematic Review and Meta Analysis

2021 ◽  
Vol 44 (1) ◽  
pp. 119-128
Author(s):  
Habtamu Molla ◽  
Habtamu Temesgen ◽  
Dereje Beyene
Keyword(s):  
Systematic Review ◽  
Cervical Cancer ◽  
Human Papilloma Virus ◽  
Publication Bias ◽  
Meta Analysis ◽  
Random Effect ◽  
Random Effect Model ◽  
Hpv Infection ◽  
Papilloma Virus ◽  
Pooled Prevalence

Human Papilloma Virus (hpv) infection causes different cancer diseases. Cervical cancer is the most common hpv related disease. hpv infection also causes cancer of anus, vulva, vagina, penis, skin, bladder, prostate, breast, oral and others because the hpv virus is epithelium-tropic. But the association of hpv infection other than cervical cancer, for example breast cancer, bladder cancer, prostate cancer etc is still inconclusive. Thus, the objective of this review was to collect published information on hpv infection other than cervix to explore the pooled prevalence of hpv infection as well as related types of cancers.  Publish research articles of hpv infection and cancer risks other than cervical cancer were systematically searched through Internet. The preferred reporting items for systematic review and meta-analysis guidelines were followed. Joanna Brigg’s Institute Meta-Analysis of Statistics Assessment and Review Instrument (jbi-mastari) adapted for cross sectional/case control study design was used for quality assessment of each individual study. A total of 22 studies were extracted and analyzed using stata 14. The random effect model was used to estimate the pooled prevalence; whereas subgroup analysis and meta-regression was performed to identify the probable source of heterogeneity. Both Egger’s and Begg’s tests were used to check publication bias.  The totals of 486 studies were retrieved and 22 studies were included in this meta- analysis. The meta-analysis result showed that the pooled prevalence of hpv infection other than cervix was 34.36% (95% CI: 23.75, 44.97) with severe heterogeneity (I2 = 99.5%; p<0.001) with no publication bias. The highest pooled prevalence of hpv infection other than cervix was related to genital cancer which is 58.63% (95% CI: 51.86, 65.39), followed by oral cancer (47.15% with 95% CI: 19.67, 74.63). Although cervical cancer is primarily hpv induced cancer which well articulated with so many researches, other cancer types (based on the location of the hpv infection) are also increasing across the world based on this systematic and meta-analysis study. hpv infection increases the risk of developing cancers other than cervical cancer.

scholarly journals Low level of knowledge about cervical cancer among Ethiopian women: a systematic review and meta-analysis

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Awoke Derbie ◽  
Daniel Mekonnen ◽  
Eyaya Misgan ◽  
Yihun Mulugeta Alemu ◽  
Yimtubezinash Woldeamanuel ◽  
...  
Keyword(s):  
Systematic Review ◽  
Cervical Cancer ◽  
Meta Analysis ◽  
Grey Literature ◽  
Cervical Cancer Prevention ◽  
The Public ◽  
Screening Practice ◽  
Pooled Prevalence ◽  
Comprehensive Search ◽  
Level Of Knowledge

Abstract Introduction Cervical cancer is one of the leading causes of malignancies among women in Ethiopia. Knowing the disease could empower women to make an informed decision regarding participation with cervical cancer prevention strategies. There is scarcity of compiled data in the field. Therefore, this systematic review aimed to provide an overview of knowledge about cervical cancer among Ethiopian women. Methods We conducted a systematic review of peer-reviewed articles on the knowledge of cervical cancer. Articles were systematically searched using comprehensive search strings from PubMed/Medline, SCOPUS, and grey literature from Google Scholar. Two reviewers assessed study eligibility, extracted data, and the risk of bias independently. Meta-analysis was performed using STATA v 14 to pool the overall knowledge of the women about cervical cancer. Results We included 26 articles published between 2013 and 2020 covering a total of 14,549 participants. All the included articles had good methodological quality. The proportion of participants who had heard of cervical cancer varied from 4.6 to 87.7% with the pooled estimate at 56% (95% CI: 47–66). Similarly, the proportion of participants who knew that HPV is the main cause of cervical cancer lied between 0 and 49.7% with the pooled result at 21% (95% CI: 13–30). Likewise, the pooled prevalence to identify at least one risk factor, one symptom of cervical cancer and ever heard of cervical cancer screening was gauged at 52% (95% CI: 39–64), 43% (95% CI: 26–60), and 39% (95% CI: 24–55), respectively. The overall pooled prevalence of good knowledge about cervical cancer was at 43% (95% CI: 33–53). On top of this, the prevalence of previous screening practice among the participants was at 14% (95% CI: 9–20). Conclusions Knowledge about cervical cancer among Ethiopian women is quite poor. Therefore, health education to provide sufficient and unbiased information about HPV and cervical cancer in general is required to the public.

scholarly journals Prevalence and associated factors of cervical cancer among women in Ethiopia: A systematic review and meta-analysis

2019 ◽  
Author(s):  
Dereje Zena Asrat ◽  
Berhanu Elfu Feleke ◽  
Kebadnew Mulatu Mihretie
Keyword(s):  
Systematic Review ◽  
Cervical Cancer ◽  
Associated Factors ◽  
Meta Analysis ◽  
Random Effect ◽  
Random Effect Model ◽  
Life Time ◽  
Prevalence Estimate ◽  
Significant Heterogeneity ◽  
Pooled Prevalence

Abstract Background: cervical cancer is the second commonest disease of women in Ethiopia. Even though, some studies were conducted to assess the prevalence and associated factors of cervical cancer among women in Ethiopia, a variation in reported prevalence across the studies were observed. The aim of this study was to determine the pooled prevalence estimate and associated factors of cervical cancer among women in Ethiopia. Methodology: A systematic review and meta-analysis was performed based on published and gray literatures between 2010 and 2019. Articles were evaluated using Joanna Briggs Institute database guidelines by two independent authors. The pooled prevalence estimate was calculated using MedCalc software-version 19.0.7 and the pooled odd ratios for predictors was calculated using RevMan software version 5.3. A meta-analysis using a mantel Hansen variance random-effects model was performed to assess the amount of variation in between studies. The report was depicted descriptively using pooled estimated prevalence and odd ratios using tables and plots. Result: From 124 retrieved data, 10 full text articles were eligible for the review. The pooled prevalence estimates of cervical cancer among women in Ethiopia using random-effect model was 15.7%, 95%CI (10.8, 21.3%). Statistically significant heterogeneity between studies was detected (I 2 =94.35% (p<0.0001). Among all associated factors measured: numbers of life time sexual partners >1, OR=0.40, 95% Cl (0.21,0.27), being HIV positive, OR=0.41,95%CI(0.21,0.75), having history of STI,OR=1.99,95% CI (1.02,3.87), women getting widowed, separated or divorced), OR=0.32, 95% CI(0.14,0.75),income <1000birr, OR=1.78, 95% CI (1.19,2.65) and women had experience of contraceptive use, OR=2.32, 95% CI (1.75,3.43) were had statistical significant association with cervical cancer among women in Ethiopia Conclusion: The pooled prevalence estimate of cervical cancer among women in Ethiopia was high. There was a variation of cervical cancer reports across studies. Reporting of this information in a consistent manner is important for researchers to enhance future studies and also useful for policymakers and practitioners for better understanding of the burden of cervical cancer in Ethiopia for prevention, diagnosis, and early treatment of the disease. Trial registration: This systematic review for registration in PROSPERO was retrospectively registered on June 20,2019.

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