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Background <p>Breast cancer screening aims to reduce mortality in women, as it is the most common and deadliest cancer among them. Various individual and contextual factors may impact screening coverage. We analysed the association of breast cancer screening in Brazil with individual and contextual variables.</p> Methods <p>This is a cross-sectional analysis from the first wave of the Brazilian National Health Survey (Pesquisa Nacional de Saude - PNS). The sample comprised of 8,682 women aged 50 to 69 living in all five geopolitical Brazilian regions. Multilevel logistic regression was used to estimate the Odds Ratio (OR, 95% CIs). Random effects were estimated using the intraclass correlation coefficient (ICC) values and the per cent variance reduction.</p> Results <p>The individual variables associated with breast cancer screening were: high level of education, living with a partner, being overweight, practising physical activity, no tobacco use, and having health insurance. Regarding contextual variables, higher numbers of mammography examinations were performed in those states with higher levels of Human Development Index (HDI), Social Development Index (SDI) and number of mammography devices.</p> Conclusions <p>Clear state inequalities underscore the importance of public health policies covering the entire target population and promoting breast cancer screening.</p>

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Individual and contextual factors associated with breast cancer screening in Brazil

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年3月23日

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  • Sabrina Daros Tiensoli,
  • Mariana Santos Felisbino-Mendes,
  • Amanda Maria de Sousa Romeiro,
  • Cesar de Oliveira,
  • Erika Aparecida Silveira,
  • Gustavo Velasquez-Melendez

摘要

Background

Breast cancer screening aims to reduce mortality in women, as it is the most common and deadliest cancer among them. Various individual and contextual factors may impact screening coverage. We analysed the association of breast cancer screening in Brazil with individual and contextual variables.

Methods

This is a cross-sectional analysis from the first wave of the Brazilian National Health Survey (Pesquisa Nacional de Saude - PNS). The sample comprised of 8,682 women aged 50 to 69 living in all five geopolitical Brazilian regions. Multilevel logistic regression was used to estimate the Odds Ratio (OR, 95% CIs). Random effects were estimated using the intraclass correlation coefficient (ICC) values and the per cent variance reduction.

Results

The individual variables associated with breast cancer screening were: high level of education, living with a partner, being overweight, practising physical activity, no tobacco use, and having health insurance. Regarding contextual variables, higher numbers of mammography examinations were performed in those states with higher levels of Human Development Index (HDI), Social Development Index (SDI) and number of mammography devices.

Conclusions

Clear state inequalities underscore the importance of public health policies covering the entire target population and promoting breast cancer screening.