Kely Paviani Stevanato

Dr. Kely Paviani Stevanato

orcid

Research Focus & Metrics

Academic Career Length

7Years (2020-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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13 May 2025 in Cancers
Verified
Journal Article
Open access
PDF file
HRHelena Fiats Ribeiro
Helena Fiats Ribeiro
FPFernando Castilho Pelloso
Fernando Castilho Pelloso
BFBeatriz Sousa da Fonseca
Beatriz Sousa da Fonseca
CCCamila Wohlenberg Camparoto
Camila Wohlenberg Camparoto
MCMaria Dalva de Barros Carvalho
Maria Dalva de Barros Carvalho
SPSandra Marisa Pelloso
Sandra Marisa Pelloso
Background/Objectives: Breast cancer is one of the leading causes of female mortality worldwide, but significant racial and socioeconomic disparities persist in disease outcomes. This review aimed to analyze racial and socioeconomic inequalities in mortality and survival from breast cancer, identifying the impact of social risk factors on access to diagnosis and treatment. Methods: A systematic literature review and meta-analysis was performed following PRISMA guidelines. Eighteen studies published between 2014 and 2024 were included, with 11 contributing to the meta-analysis. Random-effect models were used to assess correlations between socioeconomic status, race, and clinical outcomes, including heterogeneity and publication bias analyses. Results: The strongest associations were observed between income, race, and breast cancer survival, with survival significantly worse among Black women and low-income populations (p < 0.001). Income also showed a strong positive correlation with clinical outcomes. In contrast, the overall effect on mortality was not statistically significant (p = 0.290), likely due to high heterogeneity across studies (I2 = 100%). These findings suggest that structural disparities in access to healthcare and early detection substantially affect survival rates. Conclusions: Racial and socioeconomic disparities in breast cancer outcomes remain critical public health challenges. Targeted policies to expand early diagnosis and ensure equitable access to effective treatment are essential to reduce these disparities and improve survival in underserved populations.

28 April 2022 in Asian Pacific Journal of Cancer Prevention
Verified
Journal Article
Open access
PDF file
KSKely Paviani Stevanato
Kely Paviani Stevanato
RPRaíssa Bocchi Pedroso
Raíssa Bocchi Pedroso
CACatia Millene Dell Agnolo
Catia Millene Dell Agnolo
LSLander Santos
Lander Santos
FPFernando Castilho Pelloso
Fernando Castilho Pelloso
SPSandra Marisa Pelloso
Sandra Marisa Pelloso
Objective: To perform a scoping review of the applicability of the Gail model in different countries for different ethnicities. Methods: The review was conducted based on the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews (PRISMA-ScR) checklist and search strategies based on the PICOS approach. The reviewed articles were included if they were published between 2013 and 2018 in English, Portuguese, or Spanish; were original articles available in full online; and described the use of the Gail model. The PubMed, Embase, and Web of Science data bases were searched. Results: A total of 38 articles eligible for analysis were identified, of which 16 used the Gail model to assess breast cancer risk in women, eight analyzed the applicability of this tool in their population, seven compared the tool and/or modified it according to the specific risk factors of their population, and seven cited the model in determining eligibility for chemoprevention. Conclusion: The Gail model has different applicabilities Greater effectiveness and breast cancer risk are found in developed countries.

3 September 2024 in BMC Women's Health
Verified
Journal Article
Open access
PDF file
KSKely Paviani Stevanato
Kely Paviani Stevanato
LSLander dos Santos
Lander dos Santos
FPFernando Castilho Pelloso
Fernando Castilho Pelloso
DBDeise Helena Pelloso Borghesan
Deise Helena Pelloso Borghesan
MCMarcia Edilaine Lopes Consolaro
Marcia Edilaine Lopes Consolaro
SPSandra Marisa Pelloso
Sandra Marisa Pelloso
The coronavirus 2019 (COVID-19) pandemic impacted cancer health care in several countries, with delays in the detection and treatment of breast and cervical cancer. The objective of this study is to analyze and compare the screening, diagnosis and treatment of breast and cervical cancer in the pre-COVID period and during the COVID-19 period. Cross-sectional study with secondary data collected from the Mortality Information System (SIM), Hospital Information System (SIH), Ambulatory Information System (SIA) and the Oncology Panel (PO) of breast cancer notifications with ICD C50.0 to C50.9 and cervix ICD C53.0 to C53.9, The analyzed period before the pandemic was from March 1 to October 1, 2019, and during the pandemic from March 1 to October 1, 2020. The period from 2013 to 2022 was also analyzed with the same information, including the number of diagnoses, treatments, and deaths from breast cancer and cervical cancer. The study population consisted of Brazilian women aged 25 to 70 years. In order to compare categorical variables between periods, the Chi-Square or Fisher’s Exact tests, and Mann-Whitney U tests were applied, and the Poisson Regression model was applied to model the number of reported cases of COVID-19 and the amount of procedures. There was a decrease in the number of mammograms and cytopathological exams during COVID-19, as well as a decrease in cases of breast and cervical cancer. The Poisson regression showed that the increase in the number of COVID-19 cases caused a decrease in the number of breast cytopathological examinations, cervical-vaginal cytopathological examinations/microflora and screening, diagnosis, initiation of treatment for breast cancer and deaths from this disease. Meanwhile, in some regions of Brazil, as the number of Covid-19 increased, there was a significantly increase in the number of mammograms performed and cervical cancer diagnoses. The COVID-19 period in 2020 significantly impacted screening, diagnosis, treatment for breast and cervical cancer.

20 July 2023 in Healthcare
Verified
Journal Article
Open access
PDF file
HRHelena Fiats Ribeiro
Helena Fiats Ribeiro
MCMaria Dalva de Barros Carvalho
Maria Dalva de Barros Carvalho
FPFernando Castilho Pelloso
Fernando Castilho Pelloso
LSLander Dos Santos
Lander Dos Santos
MSMarcela de Andrade Pereira Silva
Marcela de Andrade Pereira Silva
SPSandra Marisa Pelloso
Sandra Marisa Pelloso
Background: This study aimed to analyze maternal risk factors associated with negative outcomes of COVID-19 and association with socioeconomic indicators in Brazil. Methods: A cross-sectional study, with data from the Influenza Epidemiological Surveillance Information System (SIVEP-Flu) of pregnant women with COVID-19 and cases of hospitalization and death. For the analysis of risk factors and outcomes, the multiple logistic regression method was used. Results: Pregnant women who had some risk factor represented 47.04%. The chance of death was 2.48 times greater when there was a risk factor, 1.55 for ICU admission and 1.43 for use of ventilatory support. The percentage of cure was 79.64%, 15.46% without any negative outcome, 4.65% death and 0.26% death from other causes. Pregnant women who did not take the vaccine represented 30.08%, 16.74% took it and 53.18% were not specified. The variables HDI, illiteracy, per capita income and urbanization did not influence the cases of COVID-19. Conclusions: Factors such as age, obesity, asthma and pregnancy were responsible for the increase in hospitalizations, respiratory complications and death. Vaccination reduced the risk of negative outcomes by 50%. There were no correlations between socioeconomic indicators and the negative outcomes of COVID-19 in pregnant women.

10 November 2025 in Cancers
Verified
Journal Article
Open access
PDF file
DLDaniel Augusto Nunes de Lima
Daniel Augusto Nunes de Lima
FPFernando Castilho Pelloso
Fernando Castilho Pelloso
Elton CruzElton Cruz
Elton Cruz
MCMaria Dalva de Barros Carvalho
Maria Dalva de Barros Carvalho
CCCamila Wohlenberg Camparoto
Camila Wohlenberg Camparoto
SPSandra Marisa Pelloso
Sandra Marisa Pelloso
Background: Breast cancer is the primary cause of cancer-related deaths among women globally, with a particularly high incidence in low- and middle-income nations. In Brazil, disparities in access to diagnosis and treatment contribute to worse clinical outcomes, particularly in regions with a lower Human Development Index (HDI). This study evaluated the association between the delay between diagnosis and treatment initiation, and clinical outcomes of breast cancer across various Brazilian regions. Methods: This observational study utilized publicly available secondary data from the Department of Informatics of the Unified Health System (DATASUS), collected between 2013 and 2023. Data included age group, treatment type (surgery, chemotherapy, radiotherapy), and delay between diagnosis and treatment initiation (≤30 days, 31–60 days, >60 days). Regional disparities were analyzed according to the HDI. Statistical analyses were performed using GraphPad Prism 8.0.1, applying Pearson’s correlation coefficient (r) and linear regression (R2) to assess associations between treatment delay and the number of cases or deaths. Results: Radiotherapy demonstrated the most significant negative correlation (r = −0.6624), and delays exceeding 60 days were consistently linked to poorer outcomes. In regions with lower Human Development Index (HDI), specifically the North and Northeast, longer treatment delays were observed, alongside a stronger correlation between delayed initiation of treatment and increased mortality. Conversely, shorter delays (30 days or less) demonstrated a weaker or absent correlation with improved outcomes. This suggests that other critical factors, such as the stage of cancer at diagnosis, the quality of care provided, and the consistency of treatment, are also significant determinants. Conclusions: Delays in treatment, particularly for radiotherapy and surgery, adversely affect breast cancer outcomes in Brazil. This impact is more pronounced in areas with lower Human Development Index (HDI), underscoring the critical need for targeted regional public policies. Such policies are essential to guarantee prompt diagnosis and treatment, thereby mitigating inequalities and enhancing survival rates.

1 November 2021 in Journal of Multidisciplinary Healthcare
Verified
Journal Article
Open access
PDF file
LSLander Dos Santos
Lander Dos Santos
KSKely Paviani Stevanato
Kely Paviani Stevanato
IRIgor Roszkowski
Igor Roszkowski
RPRaíssa Bocchi Pedroso
Raíssa Bocchi Pedroso
FPFernando Castilho Pelloso
Fernando Castilho Pelloso
SPSandra Marisa Pelloso
Sandra Marisa Pelloso
Purpose: The aim is to verify the impact of the Covid-19 pandemic on women’s healthcare and medical assistance in Brazil. Patients and Methods: This exploratory cross-sectional study evaluated a non-probabilistic sample of women above 20 years old, carried out between August and September of 2020, through a snowball sampling using a Google Forms application. Results: From a total of 2495 women, more than 70% have not been screened for cervical cancer (77.8% of 2244 women aged for screening), and more than 80% have not been screened for breast cancer (80.2% from 1325 women aged for mammography) during the pandemic. Also, 55.2% of the women did not undergo routine blood tests during the same period. The most frequent reasons for not performing screening and routine tests were: they were up to date; fear of contracting Covid-19; they decided to postpone it until after the end of the pandemic; they were unable to schedule the appointment at the healthcare center for whatever reason; and the healthcare center was only attending Covid-19 patients. Women with no comorbidities have performed significantly more mammograms and routine blood tests than women with comorbidities. In addition, women with comorbidities who were used to perform periodic medical follow-up have done it substantially more than women with no comorbidities during the pandemic. Conclusion: As observed, there was a significant decrease in women’s access to the healthcare system during this pandemic. Many participants reported that they had not attended any screening tests, and some reasons included fear of getting infected and due to the public measures of social distancing. The consequences are late diagnoses and a worse prognosis. It might impact the healthcare systems around the world in the next few years. Further studies should be done to follow these consequences.