How Social Factors Shape Cervical Cancer Diagnosis: Insights from Brazil
In the bustling cities and quiet towns of Sao Paulo, Brazil, a team of researchers led by Juan Fernando Galindo has been investigating how social factors influence the diagnosis of cervical cancer. Their study centers around the Index of Social Responsibility (ISR), a measure that captures the state of each town in terms of wealth, education, and longevity. The researchers used this index to explore the relationship between these social determinants and the stage, age, and morphology of cervical cancer at the time of diagnosis.
The study, which spanned from 2010 to 2017, involved 9,095 women aged 30 years or older from 645 municipalities. The ISR classified these municipalities into five levels, ranging from "vulnerable" to "dynamic". The researchers found that the proportion of women diagnosed at stage 1 of cervical cancer (the earliest stage) increased significantly with the ISR level. In other words, women living in more socially favorable conditions were more likely to be diagnosed at an earlier stage of the disease. Additionally, the frequency of squamous tumors, a common type of cervical cancer, decreased as the ISR level increased.
These findings underscore the crucial role of social determinants in health outcomes, particularly in the context of cervical cancer diagnosis. The ISR proves to be a valuable tool for understanding and predicting these social influences. This study highlights the importance of addressing social inequalities to improve early detection and treatment of cervical cancer, ultimately contributing to better health outcomes for all women.
Article Information
Social determinants influencing cervical cancer diagnosis: an ecological study
Published on International Journal for Equity in Health. Juan Fernando Galindo et al.
Abstract
Background: Barriers to accessing health care result in advanced cervical cancer. In Sao Paulo, Brazil, the Index of Social Responsibility (ISR) synthesizes the situation of each town concerning wealth, education, and longevity. This study aimed to evaluate in 645 municipalities the relation of the ISR with stage, age, and morphology in cervical cancer diagnosis.
Methods: An ecological study that used data from Sao Paulo, Brazil, from 2010 to 2017. The ISR was identified through government platforms and data on cancer through the Hospital Cancer Registry. The subjects were the 9,095 women aged 30 years or older. The ISR summarizes municipalities into five levels: dynamic (ISR5), unequal (ISR4), equitable (ISR3), in transition (ISR2), and vulnerable (ISR1). It was used the chi2 tests and logistic regression.
Results: The proportion of stage 1 increased significantly with ISR level, ranging from 24.9% in ISR1 to 30.0% in ISR5 (p = 0.040). To every increase in ISR level, the chance of a woman being diagnosed in stage I was at least 30% higher. Woman living where ISR2 had a 1.4 times higher chance of being diagnosed in stage 1 than those living in ISR1 (OR 1.40, 95% CI 1.07-1.84). Squamous tumors frequency decreased when ISR level increased (p = 0.117). A higher proportion of women under 50 years were observed when they lived in wealthier cities (ISR4 and ISR5) (42.2% vs. 44.6%, p = 0.016).
Conclusion: The ISR was a good health indicator for understanding and predicting the social determinants in cervical cancer diagnosis. The proportion of stage I increased significantly in more favorable social conditions.
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