Introduction:

Education allows the development of abilities and eases knowledge; it is also part of the fundamental strategies that help strengthen the processes of health promotion, since they contribute to the construction of self-care habits.

Objectives:

To assess the impact of an educational intervention on the knowledge of breast cancer in a group of adult women of Santa Marta.

Methods:

Quasi-experimental design study, and non-probabilistic sample which assessed the knowledge about prevention and control of breast cancer, before and after an educational intervention, using as an instrument of information collection the survey designed and validated by Santos and Mata in 2011. Statistical analysis was done using Past software version 3.14, and the comparison of means and the Wilcoxon test for non-parametric samples. It was taken into account the value of p with a confidence level of 95% and an error margin of 5%. National and international ethical criteria were respected.

Results:

The results of the educational intervention were statistically significant, showing a value of p < 0.05 in 7 of the 8 groups of questions, favoring the alternative hypothesis (H1); data was corroborated through the analysis of the internal deviation that turned out to be lower in the post intervention group.

Conclusions:

It was confirmed that once the educational intervention was developed, knowledge about breast cancer was increased in the group of women who participated in the study.

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