# The association between mammography reports and women’s age using retrospective data form a medical system

## TL;DR

This study found that older age and being overweight are linked to more severe mammography results in women.

## Contribution

The study identifies age, BMI, and marital status as factors associated with BI-RADS categories in mammography reports.

## Key findings

- Older women (>69 years) had higher odds of BI-RADS categories 4 and 5.
- Overweight women showed increased odds for left-lateral BI-RADS categories 4 and 5.
- Separated/divorced/widowed women had higher odds of BI-RADS categories 4 and 5.

## Abstract

We explored the association of age, obesity and marital status with Breast Imaging Reporting and Data System (BI-RADS) category distribution in women, using retrospective mammography data from a medical system, as only a few studies have investigated this association.

This retrospective study collected the first left-lateral and right-lateral mammography data of 4,165 and 4,213 women from 2,011 to 2020 in a medical system, respectively, to be analyzed. We examined the association of age, body mass index (BMI), and marital status with BI-RADS categories using the Chi-square test and multinomial logistic regression.

The proportion of BI-RADS category 0 decreased with age, but the proportion of BI-RADS categories 4 and 5 increased with age. Women aged >69 years had a higher proportion of BI-RADS categories 4 and 5 [adjusted odds ratio (aOR) = 1.34 for left-lateral mammography and aOR = 1.29 for right-lateral mammography data] than women aged 45–69 years. Overweight was associated with the rate of the proportion of BI-RADS categories 4 and 5 of the left-lateral breast (aOR = 1.26, p < 0.05) but not with the right-lateral breast.

Age >69 years, being overweight, and being separated/divorced/widowed were the factors associated with BI-RADS categories 4 and 5 of women who underwent mammography.